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6e62a9f9-7a5d-4e17-88da-a997058ed54b | AIK 11.2 : Cryogenic Distribution System for the Spoke Linac (CDS -SL)
❖Status of the installation:
•All components of the CDS -SL delivered, installed and connected together in 2021 -2022
•Pressure tests performed in September 2021 and in April 04th2022
•Final leak tests of the circuits performed in September -Octobe... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 32 |
b055b9dd-b1ae-4dbc-9629-5a352cf69632 | oacoustic impedance is to be added at room temperature
➢Second cool down is planned for June 2023
Patxi Duthil 33 April 27th2023
Reminder :CNRS contract isto deliver and install cryogenic distribution system for the Spoke linac section (CDS -SL) + 1 End Box + header unit 14 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 32 |
d5a213d5-0b35-40d2-ada1-2ff29fc96acf | SCL
34CM Installation | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 33 |
c7f24036-3100-47d8-aa27-1edf6e7b8ee0 | PRESENTATION TITLE/FOOTER 35Spoke RF system
▪The spoke section is fed by 26 RF chains
(400 kW , 352 MHz), IKC by Elettra (Italy)
based on tetrode technology.
▪Elettra is supporting the ESS team for the
installation in Lund of the RFPS and actively
collaborating to assess tetrode performance
and long -term reliabi... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 34 |
6dff8bf1-81aa-4051-b977-96ad01aa0497 | Normal conducting linac
The NC linac, operating at 352.2 MHz , is a highly integrated system, IKC from France, Italy and Spain
(as IFMIF -EVEDA project, started few years before ESS, but with few permutations in the
responsibilities).
In this part of the linac most of the beam dynamics happens, being written once fo... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 35 |
2ed1af2e-4ea0-4110-8795-1d2fb035b82b | Ion source and LEBT
PRESENTATION TITLE/FOOTER 37High intensity microwave discharge ion source (MDIS)
IKC of INFN LNS completed
❑The RF ion -source and the LEBT,
is the only part that had the
possibility to be beam tested at IK
contributor lab;
❑an initial discrepancy between
the specified beam emittance
measured ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 36 |
dacb4a30-2f8c-43a5-a1e9-bfe329a5f5a0 | LEBT chopper (Prototype tested on
BETSI)
Microwave to
plasma coupling
(3D Full wave
simulation code)
Defocusing
chopper (Comsol,
TraceWin)
2011 Strat of the design at LNS
2015 Start of the construction at LNS
25/05/2017 ESS visit for requirement verification
12/09/2017 ESS visit for requirement verification
17/1... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 36 |
5128b26e-48f3-4839-92c9-d7642aae0c96 | The NC linac RF system
PRESENTATION TITLE/FOOTER 38The accelerating structures are fed by 6
klystrons operating at 352.2 MHz, 3 MW
each, with 3 modulators.
3.3 ms14 Hz
the high -power RF system (ESS Bilbao IKC
together with the MEBT) 5 chains are in
operation, and also the last one has been
commissioned.
2023 -05... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 37 |
165e91f6-cd61-48ee-998d-32e97a7ff2ec | In-Kind Contributions
to ESS
MODULATORS
❖3 x MODULATORS delivered and under
operations at ESS Lund
RF SYSTEMS FOR RFQ & DTL, and SPOKE LLRFIn-Kind Contributions to ESS
HIGH POWER AMPLIFIERS
❖2x Klystrons from CPI -reconditioned by
ESS Bilbao -and 3x Klystrons by Thales
delivered.
❖Last Klystron being reconditioned ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 38 |
8bc32607-bbb9-45f8-9a56-a2f0ed3d5839 | In-Kind Contributions
to ESS
MEBTSECTION
❖Consisting of quadrupoles, cavities, beam
chopper + beam dump, beam
instrumentation, vacuum,… delivered and
installed in tunnel.
❖Buncher cavities RF conditioned in Bilbao
and re -conditioned in Lund.
❖Beam commissioning is progressing well so
far.
MEDIUM ENERGY BEAM TR... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 39 |
b0368fe0-cdcb-4952-825d-5a4fdd2635eb | The RFQ
PRESENTATION TITLE/FOOTER 410.70-3.6 MeV, 70 mA, 6%, 1.6 Ekp
▪The RFQ and the DTL are both composed by long
cavities (approx . 6 land 9lin the two cases), so that,
due to severe geometrical tolerances, the assembly,
tuning and RF conditioning had to be done at ESS, as
part of the IK contribution.
▪Concerni... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 40 |
5f4832bf-255e-4ced-89c8-b08ad72f4076 | consequent copper tuner machining.
▪The RFQ was successfully assembled, tuned and RF
conditioned in 2021. The beam transmission achieved in
2022 is above 90%.
2023 -05-15 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 40 |
4133d2be-6f16-4b33-88d1-bfe1c03206bf | Disposition : Titre et contenu
42RFQDESIGN: 2013 -2016
Proton beam : 70 mA -75keV to 3.6MeV
F = 352.21 MHz
Pulsed mode: 4% duty cycle (14Hz et 3.2ms)
Transmission > 90%
Beam parameters : Detrans≤5%, elong< 0.15 p.deg.MeV
4 vanes at 30µm
Sinusoïdale modulation of the vanes
2 loop power couplers : Pmax= 800kW each
4... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 41 |
bca5b229-a475-4e07-bc83-deb71240f9ad | The drift tube linac
PRESENTATION TITLE/FOOTER 43INFN LNL and Torino IK contribution
5/15/2023
call tematica acceleratori
alpha-DTL
Drift Tube Linac for alpha particle acceleration and medical radioisotope production
Area di ricerca PARTICLE ACCELERATORS
Responsabile nazionale Andrea Pisent
Unità ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 42 |
73870179-13ed-49b0-99df-362efe418bc1 | transversally better than 0.1 mm to beam
axis.
▪For the DTL the RF cavity is stabilized by
resonant post couplers, mainly with stubs
for fine field level regulation this makes
the RF tuning achieved more robust
against perturbations , | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 42 |
9c92282a-ff77-41bc-b65b-c0c1536e028c | PRESENTATION TITLE/FOOTER 44Cooling distributiontuner
Intertank transition
with BI ports and
valveVacuum port
Post coupler with stub
Slot coupler with circular
brazed RF windowDrift tube (with PMQ,
steerers or BPM)Dynamic
tuner
Isostatic supportHigh precision
reference girder
▪Consists in 5 RF tanks, 4 under bea... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 43 |
7f4234bd-158a-42bb-8f00-35e5acf42393 | T ank tuning principle
PRESENTATION TITLE/FOOTER 45Example of complete tank 4 simulation for stabilization and tuning
▪Simply: Tuners for frequency , Post coupler
insertion for stabilization , rotation for fine
tuning of field flatness
▪The problem is intrinsically 3d with mode
coupling effects; simulations extremel... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 44 |
8f770ec2-abf3-4c8e-a1da-b717ff14513a | T ank tuning principle
PRESENTATION TITLE/FOOTER 46Example of complete tank 4 simulation for stabilization and tuning
▪Simply: Tuners for frequency , Post coupler
insertion for stabilization , rotation for fine
tuning of field flatness
▪The problem is intrinsically 3d with mode
coupling effects; simulations extremel... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 45 |
081b4cad-4079-4323-9081-91e98133f1ee | PRESENTATION TITLE/FOOTER 47▪In the last ten years the INFN group (LNL and Torino ) implemented activities of
the various (overlapping) phases.
▪The whole process was INFN responsibility, but was followed by ESS, with
reviews and weekly meetings.
▪In particular the most critical production choices were analyzed toge... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 46 |
db7f3f3f-f21e-4820-86a7-63508cd18edb | PRESENTATION TITLE/FOOTER 48▪In the last ten years the INFN group (LNL and Torino ) implemented activities of
the various (overlapping) phases.
▪The whole process was INFN responsibility, but was followed by ESS, with
reviews and weekly meetings.
▪In particular the most critical production choices were analyzed toge... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 47 |
bf6d518f-d031-42a9-9cf9-a715c1f4613e | organization, and perfect harmonization with ESS staff to integrate
complementary activities.
▪In the following phases, integration in the tunnel, conditioning and beam
commissioning, this aspect of common work was more and more important,
with the consolidation of a composite INFN -ESS team that is now
commission... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 47 |
ade9ea36-978f-4914-a0b0-0b8958751c9a | DTL installation, conditioning and beam
ISrc LEBT RFQ MEBT HEBT DumpTarget
75 keV 3.6 MeV 21 MeV 216 MeV 571 MeVMBL SPK DTL HBL
90 MeV
DTL1
DTL2
DTL3
DTL43MV/m
3MV/m
3MV/m
3MV/m1.0e -6 mbar
1.0e -6 mbar
1.0e -6 mbar
1.0e -6 mbar60 kW
60 kW
60 kW
60 kW
F. Grespan et al. MOPL127 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 48 |
42934e50-177c-4585-b223-90bc67b1fc6e | DTL installation, conditioning and beam
ISrc LEBT RFQ MEBT HEBT DumpTarget
75 keV 3.6 MeV 21 MeV 216 MeV 571 MeVMBL SPK DTL HBL
90 MeV | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 49 |
fae520ac-1171-4f2a-82cb-2f02795daf1b | In kind model analysis
❑In the last year there has been a quite intense analysis, between ESS ERIC and IK
partners, about the collaboration model we implemented. This analysis was triggered by
the necessity to master various quality and schedule issues , only partly related to the
consequences of the limitations due... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 50 |
8ba65a87-c836-47e6-aad2-c7442efbcae7 | between European institutes, while at the beginning the number of accelerator experts in
Lund was very limited. The recruitment happened in parallel with the IKC hardware
development.
❑In kind provides access to intellectual property, competence and qualified manpower
(including procurement staff) at partner labs.In... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 50 |
883719dd-3c68-4b75-8cf5-2bd757e5015e | In kinder advantages
52❑For the member countries, it is a way to get local return on investment in a
facility located in a different country.
❑Direct return in the labs, with the possibility to hire and train new staff on
frontier topics, and a potential industrial return for the IKC country.
❑for INFN the participa... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 51 |
b7ee2cac-f7b3-49b2-8e98-4c2f28989ced | quality development, with required the flexibility. This is particularly important
in countries like Italy where small and medium -sized enterprises (SME) are
important part of the ecosystem. | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 51 |
e2664295-77c6-4e0a-bd91-ec2d99bb0b53 | In kind Challenges
53Scope sometimes divided based on partner lab preferences and interest rather
than according to functional breakdown . Can lead to complicated interfaces
(and problems tend to happen at the interfaces)
Partner lab priorities may change after agreements signed
Partner labs may lose critical compe... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 52 |
f70575e0-515e-43ff-b375-b0daa53b5e26 | IK that works
54Works best when it is a team effort between partner and host.
−Partnership rather than subcontracting
Need a clearly defined recipient (person or group) of the IK scope at host lab.
Jointly developed high level functional requirements and and interfaces
descriptions
Cost book principle: jointly agr... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 53 |
ee4cf882-4f9e-4590-a746-f72b469aeeae | Summary
PRESENTATION TITLE/FOOTER 55▪Good progress for completion of first phase of the ESS
accelerator (550 MeV) in Q3 2024
▪DTL 1, 2, 3 and 4 beam commissioning now
▪First CDS cool down performed
▪The 2 MW accelerator to be completed for the Start of
the User Program
▪The in -kind model made it possible to build t... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 54 |
f8ea28b6-bd50-4022-bd8d-7dfbbe5eb358 | End of presentation
PRESENTATION TITLE/FOOTER 56 2023 -05-15 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG1_talk.pdf | 55 |
03eeef73-b5b8-4fe8-86e1-bef2b6a941b2 | ACCELERATOR DRIVEN SYSTEM – A SOLUTION TO MULTIPLE
PROBLEMS OF SOCIETY *
Yuan He†1, Huan J ia1, Xunchao Z hang1, Hanjie C ai1, Neng P u, Zhijun W ang1, Weiping D ou,
Jianqiang W u, Youxin C hen1, Guirong H uang1, Jonathan C. Wong , Hongwei Z hao1, Institute of
Modern Physics, Chinese Academy of Sciences, Lanzhou... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
2b02b87c-7e3f-4ba0-93d7-ddcb2dfe188d | criticality and high net neutron production, ADS is con-
sidered as a perfect solution to burning of nuclear waste
and efficient utilization of fission resources. Since its
proposal 3 decades ago , many problems and challenges
about ADS have been solved by researches and develop-
ment s around world , especia... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
e3400e8e-1149-4510-9fb9-6c96aa336c37 | INTRODUCTION
Along with the increasing urgency of a stable, secure
and decarbonized energy system, nuclear energy is gain-
ing support after years of decline. Countries, international
organizations, scientists, and other members of society are
more unequivocal than ever about the key role that nucle-
ar energy ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
31632fb9-66bd-409b-ad8d-303ef8edb817 | front these barriers, especially the environment al risk of
radioactive contamination and spread of nuclear waste,
should be considered carefully.
SUSTAINABLE DEVELOPMENT OF NUCLEAR
ENERGY AND SPENT FUEL ISSUES
There are currently about 440 nuclear reactors in the
world, which provide about 10% of the world's ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
3a6f1ceb-e24e-42e0-8f34-73d660f99b4d | the problem of large amount accumulation of spent fuel.
By the end of 2019, there were ~433,000 tons of spent
fuel unloaded globally, with an average of ~11,300 tons of
spent fuel unloaded annually from nuclear power plants
worldwide. By 2035, it is estimated that spent fuel emis-
sions w ill be close to 618,000 to... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
3e592898-06ba-4ea1-af91-e1bfdf2480a8 | years , a time scale even longer than that of the known
human h istory . Until now, all spent fuels are stored on -site
or off -site in engineered storage facilities, pending final
decisions on its disposition. Although the scientific and
technical problems of deep geological disposal have been
widely studied... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
60c3b2eb-0ab5-46b0-85b7-cf41c928b2e8 | these resources can be fission ed to generate energy in tens
of years to maximize the utilization of fission resources
while minimiz ing the amount of nuclear waste. To effi-
ciently burn fission resources, fast neutron s are demanded
for large fission cross section, high neutron yield per
fission and low cap... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 0 |
3e8ece02-5a09-421c-b04b-13846af6858a | neutro ns, an ADS with thermal neutron spectrum can be
used to transmute LLFP.
ACCELERATOR DRIVEN SUB -CRITICAL
SYSTEM AND CLEAN NUCLEAR ENERGY
ADS consists of an accelerator, a spallation target, a
subcritical reactor, and an energy production system.
Accelerated beam (usually proton) bombard s the spall... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
4a566f3e-59ec-4362-a612-bd7ac5dcb11a | Partitioning and Transmutation ( P&T ) was studied by
ANL and ORNL in US [7], JAERI in Japan [8], GRCK in
German [9], CEA in France [10] et al since 1970s. H.
Takahashi at BNL proposed Cyclotron Transmutation in
1986 [11]. “OMEGA” R&D program was started at
JAERI in 1988 [12]. In 1990 H. Takahashi wrote ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
df0cfa7f-b753-40a0-8cb4-c7e316628036 | 1998, ADONIS changed its name to MYRRHA [19].
After different version upgrad es, MYRRHA was ap-
proved in 2018 [20]. EUROTRANS program start ed with
EURATOM since 2005 [21]. The concept of ADANES
was proposed by W. L. Zhan from IMP in China in 2010
to fully utilize nuclear fuel with only partial removal ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
df885a04-3109-4691-baec-b7cf162feed2 | structur al material s. The major challenges of ADS are the
beam power and beam reliability requirements of a con-
tinuous wave ( CW) accelerator , heat removal and window
lifetime of the target , and coupling of accelerator , target
and reactor.
Challenges of Accelerator – Beam Current
There have been... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
0bd253f2-ba5f-4d53-b268-0d38530031d8 | current and power. At the 3rd High Power Proton Acceler-
ator (HPPA) workshop, it was concluded that “Only
SC-Linac suited for full scale ADS and (existing) Cyclo-
tron for preliminary experiments ” [26]. The Spallation
Neutron Source (SNS) in US achieved 1.4 MW proton
beam in last decade, with average beam curr... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
9f32b2ba-2fab-41c8-830e-3fe24ad3aaa0 | current challenge of industrial scale ADS can be over-
come.
Challenges o f Accelerator – Beam Trip
From design studies of JAEA and MYRRHA, the beam
trip requirements are strict and time related [28][29].
Beam trips lead to power transients of reactor and target,
inducing thermal stress of structure components.... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 1 |
0f0900e9-a775-41ef-92a8-a9f59c2d3157 | Table 1: Beam Trip Requirements of Industrial Scale
ADS [30]
Beam Trip
Duration Industrial Scale
Transm utation Remarks
T<1sec <25000 Target window
lifetime
1sec<T<10sec <2500 Fatigue failure of
fuel cladding
10sec<T<5min <2500 Fatigue failure of
inner barrel and
reactor vessel
T>5 min <50 S... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
0dda0f03-fd0c-4ec4-b068-d4fbbcb21f7b | celerator, target and reactor . The other is to demonstrate
the transmutation of M As. It is expected to solve many
problems about ADS, like system operation, accelerator
reliability , etc., from design, construction, and commis-
sioning of CiADS .
Table 2: Main parameters of CiADS
Parameter Value
Beam E... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
226b8ea2-0065-49b1-abcb-025fd7ff1167 | fuel of the reactor is UO 2 with 235U enrichment of
19.75% wt. The secondary loop is also LBE, operating with
lower temperature .
The SC linac of CiADS is designed to demonstrate the
high reliability and safety of the accelerator . To achieve
this goal, several design principles are adopted .
1. Control beam... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
4884de03-727d-4311-abc3-98b7851ee23a | Several new techniques are under development to
achieve high reliability in the SC linac. T he RF power
supply and magnet power supply are de signed to combi ne
standard ized modules with hot -spare redundant. A hybrid
compensation method is proposed for cavity or magnet
failure , in which beam energy comp... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
75835912-819d-41db-8bec-fe5f9421b97b | 2017 [32, 33]. The target successfully sustained 800 kW
beam power with maximum current density of 28 uA/cm2.
The target window materia l - T91, shows good perfor-
mance under lead bismuth corrosion and proton beam
irradiation of 7 dpa [34]. For industrial scale ADS target,
heat removal up to 10~30 MW is nee... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
a57f465d-6a5c-4661-b5f2-0080e1b6cf08 | efforts are needed.
CONCLUSION
ADS is a solution to multiple problems of society but
carries big challenges. Fortunately, China (CiADS), E u-
rope (MYRRHA), India and Japan have taken the first
steps . Hopefully, we can demonstrate the concept of ADS
in the next decade to pave the way towards efficient an... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 2 |
fa91d26f-f079-4240-bc8f-56898e41ea66 | REFERENCES
[1] M. Cometto et al., “Climate Change and Nuclear Power
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[2] A. Espartero, "Trends in Spent Fuel Management World-
wide and Associated Challenges", presented at Technical
Meeti... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
8155fe6c-e1cd-40c6-acd0-74830e6943ee | Waste Management”, Rep, IAEA Nuclear Energy Series,
No. NW -T-1.14 (Rev. 1), 2022.
[6] Van Atta, C.M., “A brief History of the MTA Project”, in
Proc. ERDA Information, Meeting on Accelerator Breed-
ing, New York, US, Jan. 1977.
[7] J.C. Claiborne, “Neutron -induced transmutation of high -
level nuclear waste”, R... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
3eb39ca7-56b6-4183-b745-9da7beaff773 | [11] H.Takahashi, “Actinide Transmutation by the Spallation
Process”, in Proc. Workshop Feasibility of Res earch Pro-
gram in Actinide Transmuta tion by Spallation Process , Is-
pra, Varese, Italy, June . 1985 .
[12] IAEA, “ Accelerator Driven Systems: Energy Generation
and Transmutation of Nuclear Waste: Status Re... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
e6db1cd9-41be-4e44-bb66-410d8f5197b6 | [15] C. D. Bowman, “Basis and objectives of the Los Alamos
Accelerator -Driven Transmutation technology project”, in
AIP Conference Proceedings 346, pp. 22 –43, 1995 .
[16] Aldhous, P. , “Rubbia floats a plan for accelerator power
plants ”, SCIENCE , vol. 262, no. 5138, p. 1368, Nov. 1993.
[17] G.Van Tuyle, M.... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
bdc2a86b-027a-4955-a326-9444df026707 | facility , Rep, IAEA -CN-115-85. 2005.
[20] Funding for Myrrha,
https://world -nuclear-
news.org/Articles/Belgian -government -
approves -funding-for-Myrrha
[21] J Knebel et al ., “European Research Programme for the
Transmutation of High Level Nuclear Waste in an Acceler-
ator Driven System : Eurotrans ”, in P... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
b7128af4-40cd-4b76-9ca7-3a6f36ac2f31 | missioning Results”, presented at HB'21, Batavia, IL, USA,
Oct. 2021, paper WEIPI1, unpublished.
[24] K. TSUJIMOTO, T. SASA, K. NISHIHARA, H. OIGA-
WA, and H. TAKANO, “Neutronics Design for Lead -
Bismuth C ooled Accelerator -Driven System for Transmu-
tation of Minor Actinide”, Journal of Nuclear Science and
Techn... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
5deffd7b-409d-4c32-b033-a5b25974156a | [27] A. Aleksandrov, “Warm and cold SNS LINAC commis-
sioning ”, presented at ARIES -ADA Topical Workshop -
Experiences during Hadron LINAC Commissioning , on
line, Jan. 2021 .
[28] Hayanori Take i et al., “Estimation of acceptable beam -trip
frequencies of accelerators for accelerator -driven systems
and comparis... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
dc7d1445-7639-4289-8ded-2089b2c78dab | vol. 13, no. 22, 12643 , 2021 .
[31] Y. H e et al. , “Development of Accelerator Driven Ad-
vanced Nuclear Energy and Nuclear Fuel Recycling”, in
Proc. IP AC'19 , Melbourne, Australia, May 2019, pp. 4389 -
4393. doi:10.18429/JACoW -IPAC2019 -TUYPLS2
[32] F. Groesche et al, “MEGAPIE - irradiation experience of
... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 3 |
179a28d9-889d-4225-9080-340fa581fa35 | bility of High Power Proton Accelerator s (HPPA5) , Mol,
Belgium , May . 2007.
[33] Yong Dai, Final Report on MEGAPIE Target Irradiation
and Post -Irradiation Examination , Rep, 2015 .
doi:10.2172/1188406
[34] F. Groeschel , “MEGAPIE – A liquid Pb -Bi target at
SINQ ”, presented at Workshop on High -Power Targe... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2.pdf | 4 |
ead09cce-14f6-4893-b37c-936b478176df | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Accelerator Driven Systems ——
A Solution to Multiple Problems of Society
Yuan HE, Huan JIA, Xunchao ZHANG, Hanjie CAI, Neng PU,
Zhijun WANG, Weiping DOU, Jianqiang WU, Youxin CHEN,
Guirong HUANG, Hongwei ZHAO and CiADS... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 0 |
57cc193b-2141-4baf-a3ad-b6e21d63cec2 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Contents
•Climate change: humanity’s greatest challenge
•Problems of existing nuclear energy
•Why ADS is a solution to nuclear energy
•Challenges facing accelerator for ADS
•Project plan of CiADS
•Conclusion
2 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 1 |
21b412a7-8164-4b50-8562-b877d01d7694 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Contents
•Climate change: humanity’s greatest challenge
•Problems of existing nuclear energy
•Why ADS is a solution to nuclear energy
•Challenges facing accelerator for ADS
•Project plan of CiADS
•Conclusion
3 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 2 |
c53b07ce-5587-452a-8de7-b81d6eaef741 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Threat of Climate Change
Since the 1850s, human activities have caused
climate change unprecedented in recorded history
• Last decade is the warmest in the last 100,000 years.
• Global temperature rise is speeding up.... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 3 |
f7c293ee-07e3-47f8-956c-5bbe4747cda7 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
• To achieve carbon neutrality in the coming decades, a key to avoiding global warming of more than 1.5 ℃, investment in the
energy sector must be scal ed up and directed towards cleaner and more sust ainable technologi... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 4 |
eb8c6f57-c694-4321-a434-236a50e11c2c | efforts to limit the temperature increase to 1.5°C above pre-industrial levels.”
—— The Paris AgreementShares of nuclear and renewable energy in the electricity generation mix and
corresponding climate warming across IPCC AR6 scenarios. Greenhouse gas emissions from elect ricity generation technologies. | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 4 |
a9c7ee9b-86c3-4590-9598-c3b3289b93be | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Public Opinion Wary of Nuclear Energy
6Anti-nuclear movement supporters gather to celebrate the shuttering of Germany’s
last three nuclear power plants on April 15, 2023 in Munich, Germany.
——Johannes Simon | Getty Image... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 5 |
f133b7cd-c641-4dc0-8ecc-f2378a11be2f | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Nuclear Power Making a Comeback
7Nuclear power is gaining support after years of decline:
• 52 more reactors under construction, 2/3 in Asia.• ~30 new countries are looking at nuclear energy to meet their power and clim... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 6 |
76697322-6e6c-49c3-9229-825fd7e37b3b | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Contents
•Climate change: humanity’s greatest challenge
•Problems of existing nuclear energy
•Why ADS is a solution to nuclear energy
•Challenges facing accelerator for ADS
•Project plan of CiADS
•Conclusion
8 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 7 |
fa5773c0-ac9a-499c-a81e-59451cfb8191 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Problems Facing Nuclear Energy Today
9
• 450 nuclear reactors operating in 30 countries
• >10% of global electricity, 1/3 of low-carbon electricity• ~700 reactors (commercia l, experimental, prototype
or research reactor... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 8 |
f0e65604-d41f-44c0-9f51-d63c47097ee7 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Problem of Thermal Nuclear Reactor
Current technology: 8 tons of natura l uranium -> 1 ton of nuclear fuel -> only 50 kg is burnt up into
fission products
Reusable fuel (950kg) + depleted uranium (7 tons) has huge u... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 9 |
86a16651-0137-4ed7-9947-d8716174a6e5 | 238U4 . 4 6 ×109 1.2×103 243Am 7380 1.3 ×106
238Pu 87.7 1.5 ×108 242Cm 0.446 2.8 ×104
239Pu 24110 7.1 ×106 243Cm 28.5 5.8 ×105
240Pu 550 1.1 ×107 244Cm 18.1 6.3 ×107
241Pu 14.4 3.0 ×107 245Cm 8500 2.7 ×104
242Pu 3.7 ×105 8.9×104 99Tc 2.1 ×105 1.1×103
237Np 2.14 ×106 7.3×103 129I1 . 5 7 ×107 5.9×102
241Am 432.6 7.9 ×107... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 9 |
c20c5ec9-7225-4ea6-a47f-8f86922440ce | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Where is the Spent Fuel?
11
Carlyn Greene ，《Global Spent Fuel Overview 》
Pool storage Dry storageSpent fuel: reusable fuel + fission products (w aste), extremely difficult to partition
By the end of 2019, there were ~... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 10 |
ff673779-585d-4a1c-beba-6e9cc6217052 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
12Where will the Spent Fuel go?
“Until now, all spent fuels are stored on-site or off-site in engineered storage facilities, pending
final decisions on its disposition . No country has a geological repository for spent ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 11 |
52b9730a-733a-4d5b-8a40-6557d7a69b20 | 2022.
SKB company website
• Yucca Mountain in Nevada
state of USA, 500~800 m underground, planned to dump 70 000 t HLW.
• 2500 scientists and 10.5
Billion dollars in 1983~2009.
• North Mountain in Gansu
province of China, 560 m underground, planned to dump HLW.
• Lab construction started in
2021.
Ju Wang, Liang Ch... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 11 |
d3a3b7bd-aa65-4559-bf12-c8f8e9ff4493 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Geological Disposal Not Fail-Safe Solution
13Site requires ：geological stability for millions of years, low underground
water content, small flow, …….
Disposal warehouses of disposal systems must stay safe over hundre... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 12 |
5aa5068e-68b2-4da5-a07e-d75442e859fa | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Summary of Current Nuclear Energy
Uranium resource utilization effi ciency as a function of consumed
natural uranium “mass-in”
Samuel Bays Steven Piet , The Effect of Burnup and Separation
Efficiency on Uranium Utilizat... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 13 |
06b74b2e-4d78-4abe-8acd-067f7636e00b | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Contents
•Climate change: humanity’s greatest challenge
•Problems of existing nuclear energy
•Why ADS is a solution to nuclear energy
•Challenges facing accelerator for ADS
•Project plan of CiADS
•Conclusion
15 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 14 |
eee00a02-ea07-4d8c-a195-5390cdf4775f | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Under irradiation by high-flux neutrons in the reactor, fuel nuclides are converted into vari ous transuranic nuclides through n eutron
reaction and decay. After long-term irradi ation, the final spent fuel will cont ai... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 15 |
cadc92d8-96bb-4c9e-9b98-1fb7e538976d | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Disposal: Spent Fuel Undergoes Decay
17
Half-life （Year）
432
2.1×106
1.5×105
7204
Transuranium elements d ecay
Decay Energy
~ 60MeV
24125
7×108
21772
32760Transuranium elements in geologically buried
spent fuel can on... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 16 |
c563d787-e021-4375-b3e2-5adf92f64f43 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Incinerator: Spent Fuel Undergoes Fission
18
Energy~ 200MeV
Fission products
Actinides in spent fuel can be efficiently and effectively
utilized through fission, ultimately being converted intofission fragments.
Fissio... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 17 |
a7e7be75-2372-46be-a34f-b75537fb5890 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
19
Neutron spectrum Thermal VS Fast
ThermalFast
Fisson N-Yield with absorbed neutron energyFast neutrons ideal for burning transuranium elements
Larger fission cross section
Produces more neutrons per reaction
Captu... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 18 |
6bf3f4fd-b843-4881-bb13-29bc1409aaca | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
20Drawbacks of Fast Neutron Reactors
Relative variations of core par ameters as a function of the MAs’fraction in the fuelHow to maintain a reactor unde r critical neutron balance:
Two types of neutrons: prompt and dela... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 19 |
acefbbc9-1049-4c57-a09b-c556d1da4dee | Van den Eynde, G. ARCAS, ADS and Fast Reactor comparison St udy in Support of Strategic Research Agenda of SNETPMAs incineration rate should be at leas t less than 2.5% in fast reactors
(even 2.5% is considered very risky)Fast reactor is still not a solution to co mplete utilization of nuclear fuel
or the minimizatio... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 19 |
cdb0943f-f9ab-4531-92a3-08fafa5a090c | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Promising Solution: Accelerator-Driven
System
Proton~1 GeV
Spallation neutrons ~20 n/protonFission neutrons
>1000 n/proton
Accelerator
Subcritical reactorEnergy productionHow does ADS work safelyADS consists of acceler... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 20 |
95deffb4-939f-420f-9b43-c62cb51811d5 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Merits of ADS
Great flexibility with respect to fuel composition
For a subcritical reactor Keff< 0.98, prompt neutrons have no influence on the safety control
of the reactor. This means that the reactor can accommoda... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 21 |
93c58029-4d10-4983-8c82-4a75e0beee50 | Such prototypes could allow studies of corrosion, radiation defects and fuel evolution in realisti c conditions with
less stringent criticality control-related constraints. | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 21 |
a69b1fc8-df11-4586-8aef-7285d2e58125 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Evolution of ADS
231970s ~1983 1988
~now19941996
~20034 201319921999
~20032010~
20121990 1986 1993EURATOM
EUROTRANS (European Research Program for the TRANSmutation
of High-level Nuclear Waste in an Accelerator-driven S... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 22 |
dc77f66f-792e-4040-8ca4-e16d42426291 | Hiroshi Takahashi
ADEP
Phoenix
ADPF
1986JP-AEC-JAERI
+JNC+CRIEPI
Takakazu Takizuka
“OMEGA” R&D program1992
1988
Russia-ITEP
ENNG-XADS =HWR+Linac(ISTRA-36)1992EC-CERN
Carlo Rubbia
EA (Energy Amplifier)
China-CIAE
Venus 1 (propose)1993
1994
CERN + Italy-
ENEA+INFN+CIRTEN
LBE-XADS
EAP801996Belgium-
SCK•CENMYRRHA1999US-DOE... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 22 |
c8197bd8-eb1e-465e-b380-efef823140c8 | The China initiative Accelerator Driven System ( CiADS )US
GEM*STAR
Russia-INR
5-10MW LBE ADS2012
2013
China-CIAE
Venus 1
(Project start)2000China
10 MW CiADSstart building
2021
2014-15B e l g i u m- SCK•CEN
MYRRHA (approval)2018-19Aka rev.1.4
ADONIS →FAst Spectrum Transmutation Experimental Facility
France-CEA
MASURC... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 22 |
9832363e-d327-48f3-a696-22d138063966 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Evolution of ADS
241970s ~1983 1988
~now1994 4 2013 19921999
~20032010~
20121990 1986 19931950s
US-BNL-Hiroshi Takahashi
Accelerator driven energy producer ( ADEP )
Phoenix concept
Accelerator driven particle fuel transm... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 23 |
dcea313b-cd71-4537-916a-695fc42d9e5f | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Nuclear System with an Ideal Fuel-Cycle
25Accelerator Driven Advanced Nuclear Energy System
•Renewable fuel —— Partially removes fission fragments
from spent fuel
•Robust fuel (PUMA=Pu+U+MA): fine separation of
uranium... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 24 |
df7cf123-cf3e-405d-aa1a-a7bbad304c91 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Contents
•Climate change: humanity’s greatest challenge
•Problems of existing nuclear energy
•Why ADS is a solution to nuclear energy
•Challenges facing accelerator for ADS
•Project plan of CiADS
•Conclusion
26 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 25 |
6ab77456-d313-462f-89c8-10315a2cc1c9 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Challenges of ADS
27Accelerator
Target
ReactorCoupling of
Accelerator,
Target and
ReactorFuel
RecycleHigh power (tens of MW) accelerator
CW beam 10-30mA ，Energy: 0.8-2GeV
High availability
High power (tens of MW)... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 26 |
93a4d5a7-3274-49f7-9716-dee45c722b17 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Major Challenges of ADS Accelerators
28Takahashi, 1990
2 GeV, 15 mAJAEA ADS
1.5 GeV, 15 mA
MTA, 1950
0.5 GeV, 250 mAEFIT
0.8 GeV, 20 mAParameters Value
Beam Power 10~60 MW
Proton Energy 0.8~2 GeV
Beam Current 10~30 mA
... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 27 |
69bc02ef-e449-4694-b855-614938026185 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Power and Current Ramping of SC Linacs
A. Aleksandrov, Warm and cold SNS LINAC commissioning,
ARIES workshop, Jan 25 - 29, 2021Spallation Neutron Source Ramping
power to 1.4 MW from 2008 to 2021Iave=1.4 mA
Zhijun Wang... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 28 |
18350d82-f6e4-44fe-b6aa-fab0da85762f | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Major Challenges of ADS Accelerators
30For an industrial scale ADS, beam trip requirements are strict and time related.
Beam Trip
duration (s)Industrial Scale
Transmutation
（num/year ）Remarks
T<1sec <25000Target window ... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 29 |
3d8feefa-d03f-41b1-824e-a358a0111d4d | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
ADS-Oriented SC Linac: General Features
•Overall system design ------ disturbance isolation ：shut down the machine less
than two times per year
–Each cavity or solenoid quench is isolated from any other, the cooling sys... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 30 |
4eb1b95d-7460-4d97-b182-e85511d08694 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
ADS-Oriented SC Linac: Hardware Design
•Modularization
–Topology of high power components: multi-m odule in parallel, easy to plug and pull
•Redundancy
–A redundancy of at least one module or pelle t supports hot-swap w... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 31 |
a61512c5-31a0-4d24-a6fd-a14c7b990d3a | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
High Reliability Design of SSAMP
33Design goal: 24*365 non-stop, maintenance-free operation
Reliability ：simplified structure, segregation between
electrical and cooling elements, fixed connections
Availability ：mod... | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 32 |
c710e51a-c946-48a1-92df-ab14333205b8 | Accelerator Driven Systems - A Solution to Multiple Problems of Society, Yuan He, IPAC2023, Venice
Hot-swap Test
-for hot-swap, we measured a 6-w ays combiner with a RT-cavity.
-for fluctuations of 0.63dB and 4.2°, LLRF can recovery in 100m s.
-more technologies for hot-swap are under development.
34 | d:\Daily_ihep\Weekly Progress Report\20260425\41_IPAC'23\FRYG - Friday Plenary\FRYG2_talk.pdf | 33 |
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