THE PERFORMANCE OF A MOTOR, A SWITCH, AND TWO TYPES OF PRESSURE PICKUP IN A HIGH-GAMMA-FLUX ENVIRONMENT

摘要

The performances of the strain-gauge pickup and snap switch were highly satisfactory over the test period. The quartz pickup, however, exhibited a sensitivity to radiation which rendered it ineffective for use in such an environment. Radiation damage to the motor was manifest as degradation of insulation, and evaporation and condensation of some of the products of degradation upon the walls of the test con¬tainment shell. As a result, the motor lost power, indicating a need for insulation more resistant to gamma radiation. Radiation damage to paints, varnish, grease, and conventional insulations was noted, but the extent of this effect was not considered detrimental to the test.