1. NAME AND TITLE OF DATA LIBRARY

GAMDAT-78: Library of Gamma-Ray Decay Data for 2055 Radionuclides.

2. NAME AND TITLE OF DATA RETRIEVAL PROGRAMS

No retrieval program is included in the package.

3. CONTRIBUTOR

Central Division of Chemical Analysis, Nuclear Research Establishment, Jülich, Federal Republic of Germany.

4. HISTORICAL BACKGROUND AND INFORMATION

Gamma-ray spectrometry, which in every case includes the step of gamma-ray spectra evaluation, is an indispensable tool in nearly all fields where radioactive materials and substances are handled or investigated.

5. APPLICATION OF THE DATA

However, not only in connection with the production of energy by nuclear fission is gamma-ray spectrometry required. Fusion reactors also will produce radioactive materials and must use this method.

Gamma-ray spectrometry is also vital to nuclear medicine and gamma-ray spectrometry is the most important measuring technique used in radioanalytical chemistry, as well as planning for the shielding required for radioactive materials.

6. SOURCE AND SCOPE OF DATA

Starting from a collection of gamma-ray data used for gamma-ray spectra evaluation in the authors' laboratory, this data set was completed by systematic compilation of all gamma-ray data available. The first edition of the data collections was available in 1973; in 1978 an updated, completed and corrected version was finished.

The latest version contains 1) all radionuclides known until 1977; 2) their half-lives; 3) their daughter-nuclides; 4) their long-lived precursor-nuclides (parents); 5) their genesis or mode of artificial production; 6) hints to the references where the gamma-ray data have been found; 7) the energies of the gamma-ray and X-ray lines; 8) the abundances (intensities) of the gamma rays and X-rays.

7. DISCUSSION OF THE DATA RETRIEVAL PROGRAM

Not applicable.

8. DATA FORMAT AND COMPUTER

EBCDIC card images; IBM 370/3033.

9. TYPICAL RUNNING TIME

Not applicable.

10. REFERENCE

G. Erdtmann and W. Soyka, "The Radionuclide Gamma Ray Data File GAMDAT-78," Jul-Spez-34 (April 1979).

11. CONTENTS OF LIBRARY

Included are the referenced document and one (1.2MB) DOS diskette which contains the radionuclide gamma-ray data file GAMDAT 78.

12. DATE OF ABSTRACT

April 1985.