1. NAME AND TITLE OF DATA LIBRARY

GAMTAB: Radioactive-Decay Gamma-Rays Ordered by Energy and Nuclide.

2. NAME AND TITLE OF DATA RETRIEVAL PROGRAM

No retrieval program is included in the package.

3. CONTRIBUTOR

Savannah River Laboratory, Aiken, South Carolina, through the Argonne Code Center, Argonne, Illinois.

4. HISTORICAL BACKGROUND AND INFORMATION

Since the first Catalogue of Gamma-Rays Emitted by Radionuclides was published by M. A. Wakat in 1971, the continued use of Ge(Li) detectors of high resolution has resulted in a general upgrading of nuclear decay data. The present work consists of data from the original catalogue card files with additions and corrections where newer, superior data were at hand.

5. APPLICATION OF THE DATA

Because of the increased precision of the revised data, several minor policy changes were made to allow for: 1) Energy listings to 0.01 keV, where available; 2) Uncertainty listings for the energy, where available; 3) Use of exponential notation for half-lives and gamma-ray abundances; 4) Revision of the production mode code; 5) Listing the two most-abundant associated gamma rays to the nearest keV.

6. SOURCE AND SCOPE OF DATA

GAMTAB has a separate table of the data listed by nuclide. By means of the original Catalogue, the source of a gamma ray could be narrowed initially via two associated gamma rays to several possibilities. However, to reduce these possibilities to one, much further searching through the Catalogue and spectrum was required. In this work, TABLE II, the listing by nuclide of up to 50 associated gammas, will allow a more rapid and thorough search of the data for each of the possible nuclides and eliminate the less abundant gamma rays from further scrutiny.

7. DISCUSSION OF THE DATA RETRIEVAL PROGRAM

Not applicable.

8. DATA FORMAT AND COMPUTER

EBCDIC card images; IBM 360/370.

9. TYPICAL RUNNING TIME

No study has been made by RSIC of typical running times for GAMTAB.

10. REFERENCE

W. W. Bowman and K. W. MacMurdo, "Radioactive-Decay Gammas Ordered by Energy and Nuclide," Atomic Data and Nuclear Data Tables 13 (1974) 89-92.

11. CONTENTS OF LIBRARY

Included are the referenced document and one (1.2MB) DOS diskette which contains the gamma-ray data listed in ascending energy, data listed by nuclide, and references.

12. DATE OF ABSTRACT

June 1984.