AN ELECTROPLATED NEUTRON THERMOPILE FOR THE 3-Mw GTR

Technical Report · Fri Feb 20 04:00:00 EST 1959

OSTI ID:4252175

Harmon, F P

A neutron-sensitive thermopile which utilizes an electroplating technique for making thermoelectric couples was developed, This technique offers improved flexibility in design at reduced cost in that it eliminates the usual soldered or welded couples. The thermopile described was constructed for use in the Ground Test Reactor. It consists of a large number of equally spaced junctions extending the length of the reactor core. The signal output is therefore proportional to thc integral of the thermal flux distribution along the length of the thermopile. Other features of the thermopile include (1) l00 B/sup 10/-coated hot junctions and 100 bare cold junctions positioned for ambient- temperature compensation; (2) sensitivity of 10 microvolts per kilowatt reactor power at 2.5 inches from the reactor face; and (3) a time constant of less than one second. Methods used in determining the characteristics of the thermocouple are described. (auth)

• Research Organization: Convair, Fort Worth, Tex.
• NSA Number: NSA-13-015272
• OSTI ID: 4252175
• Report Number(s): NARF-59-20T; MR-N-226; Project 6(1-9964)
• Country of Publication: United States
• Language: English

Related Subjects

BORON 10
COATING
ECONOMICS
ELECTROPLATING
INSTRUMENTS
NEUTRON DETECTION
NEUTRON FLUX
PLANNING
REACTOR CORE
REACTORS
SEMICONDUCTORS
SENSITIVITY
THERMOCOUPLES