Detection Equipment for a Test of Charge Symmetry in n-p Elastic Scattering

摘要

Detection equipment has been developed to allow precision measurements of n-p elastic scattering of 150 to 500 MeV polarized neutron beams at TRIUMF. The apparatus permits a determination of the difference in angle, delta THETA, at which the neutron and proton analyzing powers A/sub n/ and A/sub p/ cross zero with a precision of +- 0.04 exp 0 lab at 500 MeV. From this difference in delta THETA the difference between A/sub n/ and A/sub p/ can be obtained to a precision of +- 0.001. 11 references, 11 figures, 4 tables. (ERA citation 10:003679)