TOTAL GAMMA ABSORPTION IN C$sup 12$, N$sup 14$, O$sup 16$, AND AL$sup 27$ AT 20 MEV. Technical Report No. 5
Technical Report
·
OSTI ID:4144021
Total gamma absorption cross sections of C/sup 12/ from 20.0 to 21.15 Mev, and of N/sup 14/, O/sup 16/, and Al/sup 27/ from 20.0 to 20.5 Mev, were measured using monochromatic gamma rays. A direct absorption technique was used in which samples were placed between the target of an electrostatic generator, and large sodium-iodide scintillation detectors. Monochromatic photons from the T/sup 3/(p, gamma )He/sup 4/ reaction were varied in energy by changing the energy of the incident protons. The C/sup 12/ cross-section showed pronounced structure with resonances resolved at 20.15, 20.46, and 20.92 Mev, with integrated cross sections of showed a sharply rising cross section suggesting a strong resonance peaked above about 20.5 Mev. The crossections of N/sup 14/ and Al/sup 27/ were smooth over the energy interval investigated. (auth)
- Research Organization:
- Pennsylvania. Univ., Philadelphia
- NSA Number:
- NSA-14-013212
- OSTI ID:
- 4144021
- Report Number(s):
- TID-5695
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABSORPTION-- ALUMINUM 27-- CROSS SECTIONS-- ELECTROSTATIC GENERATORS-- ENERGY-- ENERGY RANGE-- GAMMA RADIATION-- MEASURED VALUES-- NITROGEN 14-- NUCLEAR REACTIONS-- SCINTILLATION COUNTERS-- SODIUM IODIDES-- TARGETS
ABSORPTION-- CAPTURE-- CROSS SECTIONS-- ELECTROSTATIC GENERATORS-- ENERGY-- ENERGY RANGE-- GAMMA RADIATION-- GAMMA SOURCES-- HELIUM 4-- MEASURED VALUES-- NUCLEAR REACTIONS-- PROTON BEAMS-- SCINTILLATION COUNTERS-- SODIUM IODIDES-- TARGETS-- TRITIUM-- VARIATIONS
ABSORPTION-- CARBON 12-- CROSS SECTIONS-- ELECTROSTATIC GENERATORS-- ENERGY-- ENERGY RANGE-- GAMMA RADIATION-- MEASURED VALUES-- NUCLEAR REACTIONS-- OXYGEN 16-- RESONANCE-
PHYSICS
ABSORPTION-- CAPTURE-- CROSS SECTIONS-- ELECTROSTATIC GENERATORS-- ENERGY-- ENERGY RANGE-- GAMMA RADIATION-- GAMMA SOURCES-- HELIUM 4-- MEASURED VALUES-- NUCLEAR REACTIONS-- PROTON BEAMS-- SCINTILLATION COUNTERS-- SODIUM IODIDES-- TARGETS-- TRITIUM-- VARIATIONS
ABSORPTION-- CARBON 12-- CROSS SECTIONS-- ELECTROSTATIC GENERATORS-- ENERGY-- ENERGY RANGE-- GAMMA RADIATION-- MEASURED VALUES-- NUCLEAR REACTIONS-- OXYGEN 16-- RESONANCE-
PHYSICS