HaruthaiAi/The_Tree_Oil_Painting_Radiocarbon_Dating_Analysis

🧬 Radiocarbon Dating – ETH Zurich (2016)

Institution: ETH Zürich, Switzerland Analyst: ETH Zürich Radiocarbon Laboratory (Labor Dr. Georges Bonani) Report Date: 2016 Curator: Haruthai Muangboonsri License: CC BY-NC 4.0 (Attribution–NonCommercial) File Type: Scientific Report (PNG Image Series + Metadata JSON)

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1️⃣ Overview

This dataset presents the Radiocarbon Dating (C-14) analysis of The Tree Oil Painting, conducted at the ETH Zürich Radiocarbon Laboratory in 2016. The purpose of this test was to determine the age of the canvas fabric and verify its chronological consistency with 19th-century European art materials.

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2️⃣ Method

The analysis employed Accelerator Mass Spectrometry (AMS) to measure residual Carbon-14 isotopes in a micro-sample of canvas fiber. The sample was collected under controlled conditions and sent to ETH Zürich for calibration using the international C-14 reference curve (IntCal13).

Reported values include:

Fraction Modern (Fm)

Δ¹⁴C (per mil)

Calibrated ¹⁴C age range (95% probability)

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3️⃣ Results Summary

Measured ¹⁴C Age: consistent with the period 1832–1880 CE

Material: hand-woven cotton or linen canvas

Condition: aged and frayed; no signs of modern synthetic fiber

The result confirms that the canvas material predates the early 20th century, ruling out post-modern replacements or restorations.

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4️⃣ Scientific Significance

This dataset establishes the temporal authenticity of the painting’s physical support. Together with later pigment analyses, it strengthens the evidence that The Tree Oil Painting originates from the late 19th-century artistic timeline, overlapping with Vincent van Gogh’s active period.

It stands as a stand-alone radiocarbon verification pillar, scientifically independent but foundational to the broader multi-disciplinary investigation.

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5️⃣ Files

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metadata_RadiocarbonDating_ETHZurich_2016.json