THE ARGONNE 60-IN. SCATTERING CHAMBER

摘要

The 60-in. scattering chamber used with the external beam of the Argonne 60-in. cyclotron is described. The scattering chamber permits operation over an angular range from 4 to 176 with an accuracy of ± 3 min. of arc. The geometrical factors involved in the measurement of cross sections are known to ± 0.1% or better. The angular positions of the detectors, the target changer, and an absorber foil system in front of the detection units are operated by remote control so as to permit continuous operation of the cyclotron when these parameters are varied.