Simulated Gamma-Spectroscopy Peak Ratios for Nuclear Yield Inference

82 peak-area ratios per simulated event, derived from HPGe gamma spectra, are provided for two plutonium geometries. The dataset, created by Julien de Troullioud de Lanversin and updated in April 2026, labels each spectrum with yield, decay time, shielding thickness, and plutonium mass scaling factor. It includes 10 noisy variants per parameter combination for a 24-hour detector counting time.

Use Cases

• Train ML models to infer explosive yield based on gamma peak ratios.
• Evaluate the impact of post-detonation decay time on spectral signatures.
• Analyze the effect of vessel/shielding thickness on gamma measurements.
• Study the influence of plutonium mass scaling on fission-product ratios.

Strengths

• Includes 82 features per row, representing peak-area ratios to a reference line.
• Provides 10 noisy realizations per parameter combination to model Poisson statistics.
• Contains data for two distinct source geometries: thin-shell and solid-sphere plutonium.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Equivalent datasets for shorter counting times (1.5h-12h) are not included in the repository.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

figshare

Collection Method

Simulated HPGe gamma-spectroscopy data.

Freshness

Last updated 2026-04-29 05:23:51