Cross section measurements of the 1H(4He, 4He)1H elastic recoil reaction for ERD analysis

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Abstract

The non-Rutherford differential cross section of the 1H(4He, 4He)1H reaction utilized in elastic recoil detection (ERD) analysis has been measured in the 0.9–3.4 MeV energy and 16°–41° recoil angle range. The results for the differential recoil cross section vs energy (lab) and recoil angle were fitted on a second-order surface, yielding dσdω = 89.1E2 − 0.119θ2 − 455.7E + 10.2θ−1.38θE + 693, where E is the energy [MeV], θ the recoil angle [deg] and dσdω the differential cross section [10−31 m2/sr], all in the laboratory system.

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