Datasets:

gerchowl
/

nucl-parquet-data

target_Z int32 1 100	target_A int32 1 255	residual_Z int32 1 100	residual_A int32 1 256	energy_MeV float64 0 150	xs_mb float64 0 89.2B
89	225	89	221	19.5	0.000633
89	225	89	221	20	0.002094
89	225	89	223	12.5	0.922497
89	225	89	223	13	4.97209
89	225	89	223	13.5	51.0171
89	225	89	223	13.75	118.3766
89	225	89	223	14	185.736
89	225	89	223	14.25	282.1125
89	225	89	223	14.5	378.489
89	225	89	223	14.75	495.722
89	225	89	223	15	612.955
89	225	89	223	15.75	932.6105
89	225	89	223	16	1,053.14
89	225	89	223	16.25	1,138.75
89	225	89	223	17	1,414.11
89	225	89	223	17.5	1,535.92
89	225	89	223	18	1,635.91
89	225	89	223	20	1,870.87
89	225	89	224	6.75	10.41282
89	225	89	224	6.875	35.30481
89	225	89	224	7	60.1968
89	225	89	224	7.25	297.8059
89	225	89	224	7.5	535.415
89	225	89	224	8	1,103.1
89	225	89	224	8.5	1,556.31
89	225	89	224	9	1,884.89
89	225	89	224	9.5	2,101.86
89	225	89	224	10	2,245.8
89	225	89	224	11.5	2,431.59
89	225	89	224	13	2,479.81
89	225	89	224	13.5	2,443.33
89	225	89	224	14	2,315.47
89	225	89	224	14.5	2,124.93
89	225	89	224	15.5	1,689.01
89	225	89	224	16.5	1,262.85
89	225	89	224	17	1,062.64
89	225	89	224	18	819.043
89	225	89	224	18.5	752.686
89	225	89	224	20	556.171
89	225	89	226	0	2,010,784
89	225	89	226	0	9,977.036
89	225	89	226	0	10,032.04
89	225	89	226	0	10,342.94
89	225	89	226	0	11,040.83
89	225	89	226	0	12,417.46
89	225	89	226	0	13,817.16
89	225	89	226	0	15,460.57
89	225	89	226	0	17,926.19
89	225	89	226	0	21,626.57
89	225	89	226	0	30,938.32
89	225	89	226	0	91,975.85
89	225	89	226	0	125,460.9
89	225	89	226	0	166,327.2
89	225	89	226	0	208,269.5
89	225	89	226	0	254,423.5
89	225	89	226	0	290,927.8
89	225	89	226	0	350,697.2
89	225	89	226	0	418,746.2
89	225	89	226	0	472,247
89	225	89	226	0	525,890.9
89	225	89	226	0	573,440.2
89	225	89	226	0	602,980.1
89	225	89	226	0	628,635.9
89	225	89	226	0	644,427.4
89	225	89	226	0.000007	165,941.9
89	225	89	226	0.00007	49,316.04
89	225	89	226	0.0003	21,985.81
89	225	89	226	0.003	5,743.907
89	225	89	226	0.007	3,621.37
89	225	89	226	0.01	3,051
89	225	89	226	0.02	2,307.08
89	225	89	226	0.030074	2,016.7
89	225	89	226	0.04027	1,746.65
89	225	89	226	0.05	1,521.74
89	225	89	226	0.06499	1,325.93
89	225	89	226	0.077466	1,145
89	225	89	226	0.1	968.915
89	225	89	226	0.14	701.44
89	225	89	226	0.17	598.009
89	225	89	226	0.2	540.836
89	225	89	226	0.25	428.179
89	225	89	226	0.3	384.464
89	225	89	226	0.4	303.599
89	225	89	226	0.5	271.316
89	225	89	226	0.6	233.625
89	225	89	226	1.3	139.398
89	225	89	226	1.5	124.557
89	225	89	226	1.7	110.686
89	225	89	226	2	91.1151
89	225	89	226	2.2	79.0693
89	225	89	226	2.4	68.0224
89	225	89	226	2.6	58.0337
89	225	89	226	3	41.3211
89	225	89	226	3.5	26.0535
89	225	89	226	4	15.9617
89	225	89	226	4.5	9.60377
89	225	89	226	5.5	3.88058
89	225	89	226	6	2.72965
89	225	89	226	6.5	2.06863
89	225	89	226	7	1.72898

End of preview. Expand in Data Studio

nucl-parquet-data — NJOY-processed neutron cross sections

Per-isotope neutron cross-section shards for nucl-parquet, hosted here so consumers range-fetch one isotope at a time rather than downloading a monolith.

`neutron/` — ENDF/B-VIII.0, NJOY-processed

Source: OpenMC-processed ENDF/B-VIII.0 HDF5 (openmc-data-storage/ENDF-B-VIII.0-NNDC) — the pointwise data OpenMC / MCNP / Serpent transport on.
Temperature: 294 K (Doppler-broadened).
Coverage: 533 target isotopes, one shard each: neutron/n_<Sym><A>.parquet (e.g. n_Nd143.parquet).
Channels: transmutation only — capture (MT 102) + threshold reactions (n,2n / n,3n / n,p / n,α / …). Elastic, inelastic-to-levels and fission are excluded.
Schema: target_Z, target_A, residual_Z, residual_A, state, energy_MeV, xs_mb.
Grid: dense NJOY pointwise grid thinned to ≤1 % log-log accuracy. Interpolate in log-log — the 1/v region is sparse, so nearest-point reads will over-read.

Unlike the raw-MF=3 ingestion in the main repo, these carry the full resolved/unresolved resonance region and the thermal point (e.g. Nd-143(n,γ) reaches 1e-5 eV, not 0.225 MeV).

Usage

import nucl_parquet
db = nucl_parquet.connect()
# Range-fetches just this isotope's shard from HF (cached under ~/.nucl-parquet/):
rel = nucl_parquet.neutron_xs(db, "Nd143", channel="capture")

Provenance and the pinned revision live in the main repo's data/catalog.json (endfb-8.0-njoy).

Built by scripts/build_neutron_njoy.py. See issue #263.

Downloads last month: 20

nucl-parquet-data — NJOY-processed neutron cross sections

neutron/ — ENDF/B-VIII.0, NJOY-processed

Usage

`neutron/` — ENDF/B-VIII.0, NJOY-processed