A comparison of proton channeling in the <111> direction for BaF<sub>2</sub> and CaF<sub>2</sub>
Edge, R. D.; Hedrick, W. R.; Dixons, R. L.; Lamb, W. H.; Edge, R. D.; University of South Carolina; Hedrick, W. R.; University of South Carolina; Dixons, R. L.; University of South Carolina; Wake Forest University; Lamb, W. H.; Georgia College; NSF Summer Research Participant at the University
Журнал:
Radiation Effects
Дата:
1972
Аннотация:
AbstractProtons in the region of 400 KeV have been used to study the channeling process in BaF<sub>2</sub> and CaF<sub>2</sub>. The rate of loss of protons from the 111 linear channel, stopping power, and critical angle for the channel were found. Two techniques were employed, namely observationof elastic scattering by the lattice ions, and alpha particles produced by the reaction <sup>19</sup>F(p,αy)<sup>16</sup>O, from the sharp resonance at 340 keV. Both techniques gave results in good agreement. The channel parameters were much closer together for the two crystals than had been anticipated on the basis of the large difference in charge between Ba and Ca.
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