Elastic Scattering of Deuterons byHe3

Abstract

Differential cross sections for the elastic scattering of deuterons by He 3 have been measured at laboratoryenergies of 1.02, 1.50, 2.00, 2.50, 3.00, and 3.25 Mev for nine center-of-mass angles ranging from 45° to 125°. At each deuteron energy the cross section passes through a minimum in the vicinity of 90°, with the minimum shifting to slightly higher angles as the bombarding energy increases. The cross section decreases with increasing energy for each angle investigated. At 3.25 Mev the cross section passes through a minimum of 16 millibams at 100° and rises to approximately 80 millibarns at 45° and 125°. A comparison of the results for the scattering of deuterons by He 3 and by the mirror nucleus H 3 shows the cross sections to be approximately the same except at the lowest energies and forward angles.

The elastic 3He+d cross section of relevance for knock-on effects in radio frequency heated (3He)D plasmas

“…We have found six references of which five [9][10][11][12][13] were used in the data base of 21 different projectile energies in the range E d = 0.325 to 11.5 MeV as summarized in Table 1. The covered angular ranges varied with energy and was typically limited to h CM % 40-130°for E d 6 1.5 MeV but increased with energy to cover the range h CM % 10-170°at E d = 11.5 MeV.…”

“…The nuclear interaction dominance would increase with E d and large scattering angle. For instance, the back angle peaking observed for E d = 2 and 3 MeV [11,12] in Fig. 5 would be such a manifestation through the nucleon transfer reaction mechanism depicted in Fig.…”

“…scattering angle [deg] Comparison of measured cross section for d + s at E d = 1.96 and 3.0 MeV[11,12].…”