ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The 738 keV 7/2− isomeric state in43K (Τ=292 ± 5 ns,g=1.266 ± 0.015) was produced in the reaction4He(40Ar,p) using the 185 MeV pulsed40Ar beam of VICKSI and a 2–7 bar helium target cell. The suitability of this isomeric state for hyperfine studies during recoil in gases and after implantation into solids was investigated via the TDPAD technique. The hyperfine deorientation of highly stripped43K ions in He and Xe was investigated and interpreted with the AbragamPound model. When adding up to 15% Xe to the He target gas, a near-exponential loss of alignment with the Xe partial pressure was observed. This effect can be explained by K-hole production in43K in the Xe-K collision for which a cross section ofσ=5 · 10−18 cm2 was estimated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02069377
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