Elastic Scattering of Heavy Ions from Several Gas Targets

E. Newman, P. G. Roll, and F. E. Steigert
Phys. Rev. 122, 1842 – Published 15 June 1961
PDFExport Citation

Abstract

The absolute differential cross section for the elastic scattering of oxygen by gaseous targets of helium, nitrogen, and neon and of carbon by nitrogen were measured from about 4 to ∼20 degrees in the center-of-mass system. The energy of the incident heavy ions was ∼10 Mev per atomic mass unit. The ratio of the elastic cross section to the Coulomb cross section exhibits diffraction-like oscillations which damp out as η=Z1Z2e2v increases from ∼1 to ∼4. The results are compared with the predictions of a simple diffraction model, a sharp-cutoff model, and a modified-cutoff model. Reasonably good agreement is obtained in predicting the angular position of the maxima and minima, but not the absolute cross section. The modified-cutoff model appears to apply only if η is greater than about 2.5. The value of r0 found for the O16-Ne scattering is 25% greater than for the remaining three reactions.

  • Received 13 February 1961

DOI:https://doi.org/10.1103/PhysRev.122.1842

©1961 American Physical Society

Authors & Affiliations

E. Newman*, P. G. Roll, and F. E. Steigert

  • Yale University, New Haven, Connecticut

  • *Socony Mobil Fellow. Now at the Electronuclear Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee.
  • Now at the Palmer Physical Laboratory, Princeton University, Princeton, New Jersey.

References (Subscription Required)

Click to Expand
Issue

Vol. 122, Iss. 6 — June 1961

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Journals Archive

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×