ABSOLUTE CROSS SECTIONS FOR THE REACTIONS B$sup 11$$($$gamma$,2p)Li$sup 9$ AND C$sup 12$$($$gamma$,3p)Li$sup 9$

Journal Article · Thu May 01 04:00:00 EDT 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.110.708· OSTI ID:4330253

Tautfest, G W

Activation curves for the reactions B/sup 11/( gamma ,2p)Li/sup 9/ and 320 Mev. Targets of boron and carbon were exposed to the bremsstrahlung bean of the synchrotron and the yields of Li/sup 9/ measured by counting the delayed neutrons in a moderator-counter assembly surrounding the targets. The activation curves were analyzed by the photon difference method to obtain the cross-section curves as a function of energy. Both cross sections show a pronounced increase above 150 Mev, and have integrated values up to 320 Mev of 2.0 plus or minus 0.3 Mev-millibarns for the reaction B/sup 11/( gamma ,2p)Li/sup 9/ and 0.31 plus or minus 0.05 Mev-millibarn for the reaction C/sup 12/( gamma ,3p)Li/sup 9/. (auth)

• Research Organization: Purdue Univ., Lafayette, Ind.
• NSA Number: NSA-12-011958
• OSTI ID: 4330253
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 110; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION
BORON 11
BREMSSTRAHLUNG
CARBON 12
COUNTERS
CROSS SECTIONS
DELAYED NEUTRONS
EFFICIENCY
ENERGY
ENERGY RANGE
GAMMA RADIATION
LITHIUM 9
MEASURED VALUES
MODERATORS
NUCLEAR REACTIONS
PHOTONS
PHYSICS
PROTONS
SYNCHROTRONS
TARGETS