Accession Number:

AD0429178

Title:

RADIATION HARDENING THE STANDING WAVE IMPEDANCE PROBE,

Descriptive Note:

Corporate Author:

UTAH UNIV SALT LAKE CITY UPPER AIR RESEARCH LABS

Personal Author(s):

Report Date:

1963-12-19

Pagination or Media Count:

48.0

Abstract:

The radiation hardening process for the Standing Wave Impedance Probe is discussed. Included in this process is the selection of radiation resistant components on the basis of a literature search, gamma radiation testing, and neutron radiation testing conducted by the Upper Air Research Laboratories. Indications were that many of the semiconductors, resistors, and insulators used in the original Impedance Probe were unreliable in a radiation environment such as encountered in the nuclear powered Agena satellite 626. This environment is expected to consist of a yearly radiation dose of 5 x 10 to the 12th power neutronscm square and 5 x 10 to the 7th power gamma rads. The choice of radiation resistant components based on the literature search findings was substantiated by a gamma radiation test at 7.5 x 10 to the 4th power radhr and a neutron radiation test supplying a total dose of 4 x 10 to the 13th power neutronscm square. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE