Magnetic Analyzer for Charged-Particles from Nuclear Reactions.

摘要

A double focusing magnetic spectrometer for detecting and analyzing charged particles from nuclear reactions is described. The magnetic field, varying as 1/(sq.rt. r) near an average radius of 10.5 in., extends over a semicircle yielding object and anastigmatic image positions some distance outside of the region of strong field. The acceptance solid angle is Omega = 0.0061 sterad, and the momentum resolution with an 8-mm slit at the detector is R = 128. The ultimate resolution determined by spherical aberration and some residual astigmatism is about 1000. Applications to the study of the energy and yield of nuclear reaction products are discussed.