REACTOR INSTRUMENTATION AND CONTROL PROGRESS REPORT NO. 80

Technical Report · Sat Nov 30 04:00:00 EST 1963

OSTI ID:4129851

Testtng of beryllia and thoria dielectric specimens to 4000 deg F for use in capacitance temperature sensors is reported. Included in this effort is the use of a transistorized oscillator to increase the maximum operating temperature te 3780 deg F, continued refinement of the 3000 deg F probe and readout system, and the fabrication of a molybdenum-beryllia vacuum-sealed probe. The testing of fission counter components to 1500 deg F and the fabrication of d- c ionization chamber parts for testing to 1200 deg F are summarized. Testing of two gamma-compensated ionization chambers in an alternating current mode is discussed. The design and fabrication of a new ionization chamber suited to a-c operation are deecribed. Charged-fragment neutron detector testing in the presence of x rays, gamma rays, and thermal neutron flux is evaluated. (N.W.R.)

• Research Organization: General Electric Co. Advanced Technology Services, Cincinnati
• DOE Contract Number: AT(40-1)-2847
• NSA Number: NSA-18-006420
• OSTI ID: 4129851
• Report Number(s): GEMP-80
• Country of Publication: United States
• Language: English

Related Subjects

BACKGROUND
BERYLLIUM OXIDES
CAPACITORS
CHARGED PARTICLES
CIRCUITS
CONTROL SYSTEMS
CURRENTS
DIELECTRICS
EFFICIENCY
ELECTRONIC EQUIPMENT
FABRICATION
FISSION CHAMBERS
FISSION PRODUCTS
GAMMA RADIATION
HIGH TEMPERATURE
INSTRUMENTS
IONIZATION CHAMBERS
MATERIALS TESTING
MEASURED VALUES
MOLYBDENUM
MONITORING
NEUTRON DETECTION
NEUTRON FLUX
OSCILLATIONS
PLANNING
REACTOR TECHNOLOGY
REACTORS
RECORDING SYSTEMS
SEALS
SENSITIVITY
SIGNALS
THERMAL NEUTRONS
THERMOMETERS
THORIUM OXIDES
TRANSISTORS
VACUUM
X RADIATION