Theory, performance, and measured results with an improved absorbed dose water calorimeter. Final report
The feasibility of this calorimeter is mainly the result of the low thermal diffusivity of water that retards a temperature change at a point along a temperature profile. The temperature change is sensed by two calibrated thermistors sandwiched between two polyethylene films that electrically insulate the thermistors from water. The product of the temperature rise and the specific heat of water gives the combined effect of the absorbed dose and any heat defect. Temperature drifts are quickly controlled by making slight changes in electrical power dissipated in the water. Compared to solid-bodied calorimeters requiring vacuum systems, it was easy to construct, to get into operation, and to operate.
- Research Organization:
- National Bureau of Standards, Washington, DC (USA)
- OSTI ID:
- 5380135
- Report Number(s):
- PB-84-103662
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALORIMETERS
CONVECTION
DOSES
HYDROGEN COMPOUNDS
MEASURING INSTRUMENTS
OXYGEN COMPOUNDS
PERFORMANCE
RADIATION DETECTORS
RADIATION DOSES
SEMICONDUCTOR DEVICES
SHOWER COUNTERS
THERMISTORS
WATER