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INVESTIGATIONS OF ($gamma$,pn) AND ($gamma$,d) REACTIONS WITH GAMMA ENERGIES TO 32 Mev (in German)

Journal Article · · Helvetica Physica Acta (Switzerland)
OSTI ID:4288584
;

Photon induced two-particle emission was investigated with a 32 Mev betatron. The yields of the following ( gamma ,pn and ( gamma ,d) reactions were determined: Ca/sup 40/ ( gamma , pn) K/sup 38/ Zn/sup 64/( gamma ,pn)Cu/sup 62/, Zn/sup 66/( gamma ,pn) As/sup 78/, Mo/sup 92/( gamma ,pn)Nb/sup 90/, and Sb/sup 123/,( gamma ,pn)Sn/sup 121/, The cross sections vs. photon energy relationship was measured for the reactions Ca/sup 40/( gamma ,pn)K/sup 38/and Zn/sup 66/( gamma ,pn) Cu/sup 64/. The in tegrated cross section of the Zn/sup 66/( gamma ,nn)Zn/sup 64/ process is about double that of the ( gamma ,pn) + ( gamma ,d) reaction on Zn /sup 66/. The value for the Zn/sup 66/( gamma ,nn) reaction is calculated from statistical theory to be sigma Zn/sup 66/( gamma = 0.088 Mev barn. The yield of ( gamma ,pn) + ( gamma d) reactions together with the yield of ( gamma , sigma ) and ( gamma ,p) reactions was plotted as a function of nuclear charge. It is evident, that the ( gamma ,d + gamma ,pn) yields have the same shape as the ( gamma ,p) reactions. (auth)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-13-003288
OSTI ID:
4288584
Journal Information:
Helvetica Physica Acta (Switzerland), Journal Name: Helvetica Physica Acta (Switzerland) Vol. Vol: 31; ISSN HPACA
Country of Publication:
Country unknown/Code not available
Language:
German

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Related Subjects

ANTIMONY 123
ARSENIC 78
BETATRONS
CALCIUM 40
COPPER 62
COPPER 64
CROSS SECTIONS
DEUTERONS
ELECTRIC CHARGES
ELECTRON BEAMS
ELECTRONS
EMISSION
ENERGY
ENERGY RANGE
MEASURED VALUES
MOLYBDENUM 92
NEUTRONS
NIOBIUM 90
NUCLEAR MODELS
NUCLEAR REACTIONS
PHOTOELECTRIC EFFECT
PHOTONEUTRONS
PHOTONS
PHYSICS AND MATHEMATICS
POTASSIUM 38
PROTONS
SELENIUM 80
STATISTICS
TARGETS
TIN 121
ZINC 64
ZINC 66