High resolution photofission measurements using proton capture gamma rays

Conference · Wed Apr 01 04:00:00 EST 1981 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5498276

Yeh, T R; Lancman, H

High intensity proton beams from the Dynamitron at Brooklyn College are used to generate monochromatic gamma rays from known (p,GAMMA) resonances in various nuclei. The gamma rays, whose energy varies continuously as a function of the angle with the proton beam, are used in turn to measure photofission cross sections in /sup 238/U and /sup 232/Th. The number of suitable (p,GAMMA) resonances is sufficient to cover the 5 - 13 MeV range of excitation energy with an average step of about 100 keV. For a resonance of average strength the yield is 10/sup 3/ photons per ..mu..A of protons on target. The energy spread is typically 20 - 40 keV and a gamma ray energy resolution of 200 eV can easily be reached. This resolution is adequate for investigating structure in the photofission cross sections resulting from class II states in the second well of the fission barrier.

• Research Organization: Brooklyn College, Brooklyn, NY 11210
• DOE Contract Number: AC02-79ER10452
• OSTI ID: 5498276
• Report Number(s): CONF-801111-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-28:2
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
652025* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BEAMS
BREMSSTRAHLUNG
CAPTURE
CROSS SECTIONS
DYNAMITRONS
ELECTROMAGNETIC RADIATION
ELECTROSTATIC ACCELERATORS
ENERGY RANGE
ENERGY RESOLUTION
EVEN-EVEN NUCLEI
FISSION
GAMMA RADIATION
HEAVY NUCLEI
IONIZING RADIATIONS
ISOTOPES
MEASURING METHODS
MEV RANGE
NUCLEAR REACTIONS
NUCLEI
NUCLEON BEAMS
PARTICLE BEAMS
PHOTOFISSION
PHOTONUCLEAR REACTIONS
PROBABILITY
PROTON BEAMS
RADIATIONS
RADIOISOTOPES
RESOLUTION
THORIUM 232
THORIUM ISOTOPES
URANIUM 238
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES