INELASTIC PROTON SCATTERING ON HOLMIUM-165 AND GADOLINIUM-156

Journal Article · Sun Dec 15 04:00:00 EST 1963 · Physical Review (U.S.) Superseded in part by Phys.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.132.2582· OSTI ID:4145566

Lieber, A; Whitten, C A

Elastic and inelastic scattering of 17.5-Mev protons by the low-lying rotational levels of holmium-165 and gadolinium-156 was studied using a telescopic array of solidstate detectors with a resolution of about 60 kev. Angular distributions were obtained for the ground state (7/2/sup -/), first excited state (9/2/sup -/), and second excited state (11/2/sup -/) of holmium- 165, and the ground state (0/sup +/), first excited state (2/sup +/), and second excited state (4/sup +/) of gadolinium-156. The cross section for the first excited state of Ho/sup 165/ is an order of magnitude below that of the ground state. The ratio of the first excited state of Ho/sup 165/ to that of the second does not agree with the prediction given by first-order direct reaction theory. There is some evidence that the third-excited state of Gd/sup 156/ (6/sup +/) is weakly excited by 17.5-Mev protons. (auth)

• Research Organization: Princeton Univ., N.J.
• NSA Number: NSA-18-002926
• OSTI ID: 4145566
• Report Number(s): PUC-1963-111; 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• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 132; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
COINCIDENCE METHODS
CROSS SECTIONS
CRYSTAL COUNTERS
ENERGY LEVELS
EXCITATION
GADOLINIUM 156
HOLMIUM 165
NUCLEAR REACTIONS
PARITY
PHYSICS
PROTON BEAMS
RESOLUTION
ROTATION
SCATTERING
SPIN