DEVELOPMENT OF NEW EXPANDED EDITIONS OF THE GAMMA-RAY SPECTRUM CATALOGS IN ELECTRONIC FORMAT

A program has been developed at the INEL to produce new enhanced editi ons of the original Gamma-ray Spectrum Catalogues for presentation in electronic format. This program has produced the first version of the Catalogues in CD-ROM format and will offer them on the Internet throug h the Gamma-ray Spectrometry Center Web Site at INEEL. The original co ntent of the Catalogues has been expanded to include integrated decay scheme drawings, tables of related decay data, and updated material on the techniques of gamma-ray spectrometry. All of the original spectra l plots, gamma-ray energy and intensity data, and text were converted to digital format, related decay data from the Evaluated Nuclear Struc ture Data File (ENSDF) and decay scheme graphics were then added, and all data converted to the Adobe Acrobat (PDF) format. Follow-on versio ns of the catalogues are being expanded to include prompt neutron capt ure and n-n' spectra and spectra representing the response of large-vo lume Ge detectors. Large-volume Ge detector spectra will be calculated using Monte Carlo and parametric fitting techniques presently under d evelopment. Examples of content and details of the advanced technology applied to produce these new volumes will be presented. Services and content of the Gamma-ray Spectrometry Center Web Site will also be des cribed.