Background compensation for a radiation level monitor
Background compensation in a device such as a hand and foot monitor is provided by digital means using a scaler. With no radiation level test initiated, a scaler is down-counted from zero according to the background measured. With a radiation level test initiated, the scaler is up-counted from the previous down-count position according to the radiation emitted from the monitored object and an alarm is generated if, with the scaler having crossed zero in the positive going direction, a particular number is exceeded in a specific time period after initiation of the test. If the test is initiated while the scale is down-counting, the background count from the previous down- count stored in a memory is used as the initial starting point for the up-count.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-33-026047
- Assignee:
- to U.S. Energy Research and Development Administration
- Patent Number(s):
- US 3924106; PAT-APPL-519,491.
- OSTI ID:
- 4024773
- Country of Publication:
- United States
- Language:
- English
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