Elastic and Inelastic Scatterings of Protons from Ti, Cr, Ni, Zn, and O at 8 to 14 MeV

Journal Article · Wed Jul 15 04:00:00 EDT 1959 · Journal of the Physical Society of Japan

DOI:https://doi.org/10.1143/JPSJ.14.861· OSTI ID:4258852

Hu, Chuin; Kikuchi, Ken; Kobayashi, Shinsaku; Matsuda, Kazuhisa; Nagahara, Yukio; Oda, Yukiyasu; Takano, Naoyuki; Takeda, Minoru; Yamazaki, Takashi

The elastic and inelastic (leading to the first excited states of target nuclei) scattering of protons by medium weight nuclei (Ti, Cr, Ni, and Zn) was studied by observing the dependence of their angular distributions on bombarding energies from 8 to 14 Mev. The angular distributions of protons elastically scattered from oxygen were also measured in the same energy range. There are appreciable regularities in the elastic scattering by medium weight nuclei as regards the dependence of their angular distributions on the bombarding energy and on the atomic number except in the case of the bombarding energy of 8 Mev. The elastic scattering from oxygen shows an anomalous behavior at energies about 9 Mev. The angular distributions of protons inelastically scattered from medium weight nuclei can be fitted by the predictions of the direct interaction theory with Born approximation at about 14 Mev, but at the lower bombarding energies they seem not to do so, although they have the prominent forward peaks. The distorted Born approximation or the admixture of amplitudes due to compound process seems to be necessary to explain the angular distributions. In addition, it is found that the yield of the inelastic scattering varies with the bombarding energy appreciably. For Ni target, the dependence of the yield of the inelastic scattering leading to the first excited state on the bombarding energy was measured in detail by changing the incident proton energy finely at intervals of about 50 kev. It was recognized that there were resonancelike behavior with spacing of about several hundred kev.

• Research Organization: Osaka Univ.; Univ. of Minnesota, Minneapolis; Univ. of Tokyo; Yokohama National Univ., Japan; Kyushu Univ., Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-018514
• OSTI ID: 4258852
• Journal Information: Journal of the Physical Society of Japan, Journal Name: Journal of the Physical Society of Japan Journal Issue: 7 Vol. 14; ISSN 0031-9015
• Publisher: Physical Society of Japan
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHROMIUM
DIRECT REACTIONS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
MEASURED VALUES
MEV RANGE
NICKEL
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN
PERTURBATION THEORY
PHYSICS AND MATHEMATICS
PROTON BEAMS
PROTONS
RESONANCE
SCATTERING
TITANIUM
ZINC