GET /getdataset.jsp

bnl.gov:nudat-database-api

Summary: Get nuclear structure data (levels and gammas)
Operation ID: getNuclearStructureData
Auth: unknown
Description

Returns evaluated nuclear structure data for a specified nucleus, including energy levels, spin-parity assignments, half-lives, and gamma-ray transitions. Data is sourced from ENSDF (Evaluated Nuclear Structure Data File).

Parameters (3)

nucleus (string, query, required)

Nucleus identifier (e.g., 56Fe, 208Pb, 137Cs)

type (string, query, optional)

Response format type

Constraints: {'enum': ['json']}

unc (string, query, optional, default: NDS)

Uncertainty standard (default: NDS)

Constraints: {'enum': ['NDS', 'ENSDF']}

Examples (2)

TitleTypeURLAction
Get nuclear structure data (levels and gammas) openapi-spec https://www.nndc.bnl.gov/nudat3/getdataset.jsp?nucleus=56Fe&type=json
Get nuclear structure data (levels and gammas) probe-gate https://www.nndc.bnl.gov/nudat3/getdataset.jsp?nucleus=56Fe&unc=NDS&type=json

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-03-23 10:51:16.954197 200 1978ms
2026-03-23 09:29:51.515076 200 2368ms