ISSN:
1434-601X
Keywords:
36.10.Gv
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The spectral flux densityn(T) of μ− emerging from a Au or MgF2 moderator has been measured at low energiesT using time-of-flight. Fromn(T) the stopping powerS(T) of Au was determined for 2 keV≤T≤22 keV, and of MgF2 for 2 keV≤T≤12 keV. For Au,S(T) is smaller than calculated values obtained from proton atomic data practically in the wholeT range (Barkas effect); at lowT S(T) approaches the calculated values. For MgF2,S(T) agrees fairly with the calculated values above 5 keV and then drops below these values. We ascribe this dropping to the large energy gap of the MgF2 insulator.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01290784
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