1. NAME AND TITLE OF DATA LIBRARY
THERMGAM: Prompt Gamma Rays from Thermal-Neutron Capture.
2. NAME AND TITLE OF DATA RETRIEVAL PROGRAMS
Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario,
4. HISTORICAL BACKGROUND AND INFORMATION
Previous compilations provided information on gamma rays from thermal-neutron capture in
individual isotopes and natural elements and covered data published prior to 1969. Since then more
data with higher resolution have become available which supersede earlier results. The present catalog
based on the data published between 1968 and March 1980 updates the information on natural elements
in the previous compilations.
5. APPLICATION OF THE DATA
This catalog of prompt gamma rays from thermal-neutron capture in natural elements is designed
primarily as a convenient tool for analytical prompt gamma-ray spectroscopy. Other potential uses
are the identification of background gamma rays and of chemical trace impurities in target materials
used for (n,gamma) studies and for prediction of secondary gamma rays from materials irradiated by
6. SOURCE AND SCOPE OF DATA
The data from the Chalk River Laboratories are given in two tables for Z = 1-83 (except Pm), 90,
and 94. In Table 1, gamma rays are listed in order of increasing energy. Table 1 includes intensity,
thermal-neutron radiative-capture cross section, and two other major lines from the same element. It
includes additional weaker lines not included in Ref. 2. In Table 2, gamma rays are listed by element.
This table includes thermal-neutron radiative-capture cross sections, and a list of gamma-ray energies,
energy uncertainties, and intensities.
7. DISCUSSION OF THE DATA RETRIEVAL PROGRAMS
There is no retrieval program.
8. DATA FORMAT AND COMPUTER
Table 1 is formatted as a Fortran output file for printing. Both Table 1 and Table 2 contain 80
characters per record. Mainframes, minicomputers, and IBM PC.
9. TYPICAL RUNNING TIME
Does not apply.
1. D. K. Trubey, Informal notes, ORNL (August 1988).
2. M. A. Lone, R. A. Leavitt, and D. A. Harrison, "Prompt Gamma Rays from Thermal-Neutron
Capture," Atomic Data and Nuclear Data Tables, 26(6), 511-559 (1981).
11. CONTENTS OF LIBRARY
Included are reference 1, the text of reference 2, and Tables 1 and 2 on one (1.44MB) DOS
12. DATE OF ABSTRACT
KEYWORDS: CAPTURE GAMMA RAY