NUCLEAR EXCITATION FUNCTIONS: Ar$sup 40$, Zn$sup 68$(d,He$sup 3$)

Journal Article · Mon Apr 01 04:00:00 EST 1963 · Physical Review (U.S.) Superseded in part by Phys.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.130.259· OSTI ID:4750052

Williams, D C; Irvine, Jr, J W

The (d,He/sup 3/) reaction was studied by radiochemical techniques. Absolute excitation functions were determined to 15 Mev for the reactions Ar/sup 40/(d,He/sup 3/)Cl/sup 39/ and Zn/sup 68/(d,He/s up 3/)Cu/sup 67/. The Ar/sup 40/ (d,He/sup 3/)Cl/sup 39/ cross section is 0.37 plus or minus 0.07 mb at 14.8 Mev and the Zn/sup 68/(d,He/sup 3/)Cu/sup 67/ cross section is 0.54 plus or minus 0.08 mb at 15.4 Mev. These cross sections are shown to be more than an order of magnitude greater than predicted by the statistical model of nuclear reactions. The energy dependence of the cross section appears to be governed by the Coulomb barrier felt by the outgoing He/sup 3/ particle, at least when the He/sup 3/ energy is less than the classical barrier height. The shape of the observed excitation functions may be reproduced moderately accurately by a very simple proton pickup model. (auth)

• Research Organization: Massachusetts Inst. of Tech., Cambridge
• NSA Number: NSA-17-017234
• OSTI ID: 4750052
• Report Number(s): TID-17301; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 130; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON 40
CHLORINE 39
COPPER 67
CROSS SECTIONS
DEUTERON BEAMS
DIRECT REACTIONS
ENERGY RANGE
HELIUM 3
MEV RANGE
NUCLEAR REACTIONS
PHYSICS
PICK-UP
RADIOCHEMISTRY
ZINC 68