THE EFFECTS OF REACTOR RADIATION ON THE ELECTRICAL PROPERTIES OF ELECTRONIC COMPONENTS. PART VII. RESISTORS AND VACUUM TUBES

Technical Report · Thu Jun 01 04:00:00 EDT 1961

OSTI ID:4044654

Palmer, E E; Howell, D

Several types of vacuum tubes and resistors were irradiated with the Ground Test Reactor for a period of 100 hours at a power level of 1 megawatt. Data were taken on the components before, during, and after the irradiation. The vacuum tubes received a maximum radiation exposure of 8.64 x 10/sup 1//sup 5/ nf/ cm/sup 2/ and 3.9 x 10/sup 1//sup 0/ ergs/gm(C). A small increase in the average plate current was noted for all tube types. Pentodes subjected to the high-flunx field exhibited the largest percent change ( approx equal 6%) while dicdes remained relatively unaffected-at these radiation levels. The resistors received a maximum radiation exposure of 1.4 x 10/sup 1//sup 6/ nf/cm/sup 2/ and 6.2 x 10/ sup 1//sup 0/ ergs/gm(C). The degree of damage was dependent upon the material and type of construetion of the individual resistor types. The maximum observed change ( approx equal 6%) occurred in fixed-composition resistors. (auth)

• Research Organization: Convair, Fort Worth, Tex.
• NSA Number: NSA-15-022793
• OSTI ID: 4044654
• Report Number(s): NARF-61-5T; MR-N-268
• Country of Publication: United States
• Language: English

Related Subjects

DIODES
ELECTRON TUBES
ELECTRONIC EQUIPMENT
IRRADIATION
METALS, CERAMICS, AND OTHER MATERIALS
RADIATION DOSES
RADIATION EFFECTS
REACTORS
RESISTORS
TESTING
VACUUM