Cross section measurements on radioactive samples
We have developed a system over the past few years at the Manuel Lujan, Jr. Neutron Scattering Center (LANSCE) for making (n,p) and (n,{alpha}) measurements on (mainly) radioactive nuclei. Measurements have included {sup 7}Be(n,p){sup 7}Li, {sup 14}N(n,p){sup 14}C, {sup 17}O(n,{alpha}){sup 14}C, {sup 22}Na(n,p){sup 22}Ne, {sup 22}Na(n,{alpha}){sup 19}F, {sup 35}Cl(n,p){sup 35}S and {sup 36}Cl(n,p){sup 36}S. The major basic physics motivation for these measurements has been the nuclear astrophysics to be learned. Currently, we are assembling a 4{pi} detector of barium fluoride (BaF{sub 2}) for making (n,{gamma}) measurements on radioactive nuclei with relatively short half lives. Once operational, this new detector should allow us to expand our measurements to many more nuclei, and to a broader range of nuclear physics and nuclear astrophysics issues addressed. Results of recent measurements are given and future plans are discussed. 38 refs., 2 figs.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- Sponsoring Organization:
- DOE/AD
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6359864
- Report Number(s):
- LA-UR-90-3491; CONF-901057-6; ON: DE91001968; TRN: 91-000398
- Resource Relation:
- Conference: 7. international symposium on capture gamma-ray spectroscopy and related topics, Pacific Grove, CA (USA), 14-19 Oct 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
RADIOISOTOPES
NEUTRON REACTIONS
ASTROPHYSICS
BARIUM FLUORIDES
CAPTURE
CROSS SECTIONS
GAMMA DETECTION
MEASURING INSTRUMENTS
NUCLEOSYNTHESIS
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARYON REACTIONS
DETECTION
FLUORIDES
FLUORINE COMPOUNDS
HADRON REACTIONS
HALIDES
HALOGEN COMPOUNDS
ISOTOPES
NUCLEAR REACTIONS
NUCLEON REACTIONS
RADIATION DETECTION
SYNTHESIS
651000* - Nuclear Physics
640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources