Study of electron scattering in coincidence with photon emission from carbon-12
Thesis/Dissertation
·
OSTI ID:5229332
Inelastically scattered electrons were detected in coincidence with decay photons from the 2+ 4.4 MeV and 1/sup -/ 15.1 MeV levels of /sup 12/C. Photons were detected by a 9.375 inch diameter by ten inch thick NaI(Tl) detector, positioned 27 inches from the target, having a solid angle of 0.05 steradians. The major experimental difficulty encountered was the high neutron and target-related electron background count rates in the NaI. The neutron background was reduced through careful shielding of the NaI and beam dump. The use of a plastic scintillator in front of the NaI permitted electronic rejections of NaI signals produced by electrons. True-to-accidental ratios as high as 25 were achieved through the use of the one hundred percent duty factor incident electron beam from the University of Illinois MUSL-2 accelerator. Both nuclear and bremsstrahlung coincidence cross sections were measured, the separation being made on the basis of their different energy dependents. Three points of an angular correlation of photons with outgoing electrons at sixty and at 160 degrees were measured. The incident electron energy was 67 MeV. The results were compared to PWBA predictions. An excess bremsstrahlung cross section was seen at large electron scattering angles.
- Research Organization:
- Illinois Univ., Urbana (USA)
- OSTI ID:
- 5229332
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651323 -- Nuclear Properties & Reactions
A=6-19
Experimental-- Energy Levels & Transitions-- (-1987)
651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
BREMSSTRAHLUNG
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
CORRELATIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MASSLESS PARTICLES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PHOTONS
RADIATIONS
SCATTERING
STABLE ISOTOPES
TARGETS
A=6-19
Experimental-- Energy Levels & Transitions-- (-1987)
651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
BREMSSTRAHLUNG
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
CORRELATIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELECTRON REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MASSLESS PARTICLES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PHOTONS
RADIATIONS
SCATTERING
STABLE ISOTOPES
TARGETS