Experiment on Elastic Scattering of Protons by O¹⁸

Full text:
PDF (eReader) / PDF (Download) (1154 kB)

Kohsuke Yagi¹, Kenji Katori¹, Hajime Ohnuma¹, Yoshio Hashimoto¹, and Yozo Nogami¹

+ Affiliations

¹Department of Physics, Faculty of Science, University of Tokyo

Received December 8, 1961

The differential cross section for the elastic scattering of protons by O ¹⁸ has been measured for proton energies from 600 to 1450 keV at center-of-mass angles of 140.8° and 90.0°. Targets consisted of thin LiOH films on thin gold foils and BeO films on thick beryllium foils. The technique for the preparation of these thin O ¹⁸ targets is described. Protons scattered elastically from O ¹⁸ were selected by a 90°-magnetic spectrometer. Resonances were observed at 633, ∼680, ∼850, 987, 1169, 1239 and 1403 keV in proton energies, indicating the excitation of seven levels of the compound nucleus, F ¹⁹. The resonance near 850 keV showed a marked anomaly with large width, and the resonance near 680 keV was a weakly excited one with large width. Other resonances had weakly excited anomalies with small widths.

https://doi.org/10.1143/JPSJ.17.595

References

1 J. P.Elliott and B. H.Flowers: Proc. Roy. Soc. (London) A 229 (1955) 536. Crossref, Google Scholar
2 M. G.Redlich: Phys. Rev. 95 (1954) 448; 99 (1955) 1427; 110 (1958) 468. Crossref, Google Scholar
3 E. B.Paul: Phil. Mag. 15 (1957) 311. Crossref, Google Scholar
4 G.Rakavy: Nucl. Phys. 4 (1957) 375. Crossref, Google Scholar
5 K.Wildermuth and Th.Kanellopoulos: Nucl. Phys. 9 (1958/59) 449. Crossref, Google Scholar
6 R. K.Sheline and K.Wildermuth: Bull. Am. Phys. Soc. 5 (1960) 271. Google Scholar
7 F.Ajzenberg-Selove and T.Lauritsen: Nucl. Phys. 11 (1959) 225. Google Scholar
8 H.Smotrich, K. W.Jones, L. C.McDermott and R. E.Benenson: Phys. Rev. 122 (1961) 232. Crossref, Google Scholar
9 K. K.Huang, K.Yagi, T.Awaya, H.Ohnuma, M.Fujioka and Y.Nogami: to be published. Google Scholar
10 J. C.Armstrong and K. S.Quisenbery: Phys. Rev. 122 (1961) 150. Crossref, Google Scholar
11 K.Yagi, Y.Nakajima, K.Katori, M.Fujioka and Y.Awaya: to be published. Google Scholar
12 R. R.Carlson, C. C.Kim, J. A.Jacobs and A. C. L.Barnard: Phys. Rev. 122 (1961) 607. Crossref, Google Scholar
13 C.Mileikowsky and R. T.Pauli: Arkiv för Fysik 4 (1950) 299. Google Scholar
14 J.Seed: Phil. Mag. 42 (1951) 566. Crossref, Google Scholar
15 A. V.Cohen: Phil. Mag. 44 (1953) 583. Crossref, Google Scholar
16 H. A.Hill and J. M.Blair: Phys. Rev. 118 (1960) 495. Crossref, Google Scholar
17 R. L.Clarke, E.Almqvist and E. B.Paul: Nucl. Phys. 14 (1959) 472. Crossref, Google Scholar
18 J. W.Butler and H. D.Holmgrem: Phys. Rev. 116 (1959) 1485. Crossref, Google Scholar
19 E. L.Hudspeth, I. L.Morgan and J. T.Peoples: Phys. Rev. 99 (1955) 643; J. W.Nelson and E. L.Hudspeth: Bull. Am. Phys. Soc. 5 (1960) 109. Google Scholar
20 O. M.Bilaniuk and P. V. C.Hough: Phys. Rev. 108 (1957) 305. Crossref, Google Scholar
21 W.Whaling: The Energy Loss of Charged Particles in Matter, Calif. Inst. Tech., Pasadena (unpublished). Google Scholar
22 C. W.Snyder, S.Rubin, W. A.Fowler and C. C.Lauritsen: Rev. Sci. Inst. 21 (1950) 852. Crossref, Google Scholar
23 Bumiller, Müller and Staub: Helv. Phys. Acta 29 (1956) 234; S. L.Andersen, H.Bö, T.Holtebekk, O.Lönsjö and R.Tangen: Nucl. Phys. 9 (1958/59) 509; R. O.Bondelid and C. A.Kennedy: Phys. Rev. 115 (1959) 1601. Google Scholar

Experiment on Elastic Scattering of Protons by O18

References

Article Tools

Experiment on Elastic Scattering of Protons by O¹⁸