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

Technical Report · Thu Jun 01 00:00:00 EDT 1961

DOI:https://doi.org/10.2172/4043781· OSTI ID:4043781

Ayer, J. E.; Pokorny, G. J.

To determine the effects of gamma radiation upon transducers, switches, and motors, two test assemblies were irradiated in the ANL Gamma Irradiation Facility at levels of 1.50 x 10/sup 5/to 2.10 x 10/sup 6/ rad/hr to a total dose of 1.0 x 10/sup 9/ rad. The components tested were a motor, a straingage pressure pickup, a quartz pressure pickup, and a high-temperature switch. The performances of the straingage 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 containment shell. As a result, the motor lost power, indicating a need for insulation more resistant to gamma radiation. Radistion damage to paints, varnish, grease, and conventional insu lations was noted, but the extent of this effect was not considered detrimental to the test. (auth)

• Research Organization: Argonne National Lab., Ill.
• DOE Contract Number: W-31-109-ENG-38
• NSA Number: NSA-15-024047
• OSTI ID: 4043781
• Report Number(s): ANL-6347
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
COATING
DECOMPOSITION
DEFORMATION
DIELECTRICS
EVAPORATION
GAGES
GAMMA RADIATION
GREASES
IRRADIATION
LUBRICATION
MOTORS
PAINTS
PERFORMANCE
PIEZOELECTRICITY
PIGMENTS
PRESSURE
QUARTZ
RADIATION DOSES
RADIATION EFFECTS
SENSITIVITY
SOLIDIFICATION
SWITCHES
TESTING
TRANSDUCERS
VARNISHES