International Atomic Energy Agency



Database for Prompt Gamma-ray Neutron Activation Analysis

Neutron-capture prompt-gamma activation analysis (PGAA) is particularly valuable as a non-destructive nuclear method in the measurement of elements that do not form neutron capture products with delayed gamma-ray emissions. Inaccurate and incomplete data have been a significant hindrance in the qualitative and quantitative analysis of complicated capture-gamma spectra by means of PGAA The main reason in producing this database was to improve the quality and quantity of the required data in order to make possible the reliable application of PGAA in fields such as materials science, geology, mining, archaeology, environment, food analysis and medicine.

The resulting database provides a variety of tables for all natural elements (from H to U) including the following data: isotopic composition, thermal radiative cross section (total and partial), Westcott g-factors, energy of the gamma rays (prompt and delayed), decay mode, half life and branching ratios.


PGAA-IAEA Database Viewer
Undertakes interactive searches of the PGAA database by isotope, energy, or cross section. Data for the viewer were received from Richard B. Firestone (Lawrence Berkeley National Laboratory, USA), and the viewer was developed by Viktor Zerkin (IAEA, NDS).

Documentation
Report of the IAEA Coordinated Research Project for the Development of a Database for Prompt Gamma-ray Neutron Activation Analysis

PGAA Database Files
Adopted PGAA database and associated files in EXCEL, PDF, and TEXT formats. Lone et al, Reedy and Frankle archival databases.

Evaluated Gamma-ray Activation File (EGAF)
Adopted PGAA database in ENSDF format. Data can be viewed with Isotope Explorer 2.2 ENSDF Viewer.

PGAA Database Evaluation
ENSDF format versions of the adopted PGAA database, and the Budapest and ENSDF isotopic input files. Decay scheme balance and statistical analysis summaries are provided. Received from Richard B. Firestone (Lawrence Berkeley National Laboratory, USA).

Isotope Explorer 2.2 ENSDF Viewer
Windows software for viewing the level scheme drawings and tables provided in ENSDF format. The complete ENSDF database as of December 2002 is included. Written by S.Y. Frank Chu and Richard B. Firestone (Lawrence Berkeley National Laboratory, USA) and L P Ekström (Lund University, Sweden).

The CRP
Database developed as part of a Coordinated Research Project for the Development of a Database for Prompt Gamma-ray Neutron Activation Analysis sponsored by the International Atomic Energy Agency (IAEA). The data are derived from  isotopic measurements compiled in the Evaluated Nuclear Structure Data File (ENSDF), updated when necessary, and from elemental measurements performed at the Budapest Reactor Centre.



DURATION: 1999-2003  -     PROJECT OFFICER: Raquel Paviotti-Corcuera