AREA RADIATION MONITOR
Abstract
S>An improved area radiation dose monitor is designed which is adapted to compensate continuously for background radiation below a threshold dose rate and to give warning when the dose integral of the dose rate of an above-threshold radiation excursion exceeds a selected value. This is accomplished by providing means for continuously charging an ionization chamber. The chamber provides a first current proportional to the incident radiation dose rate. Means are provided for generating a second current including means for nulling out the first current with the second current at all values of the first current corresponding to dose rates below a selected threshold dose rate value. The second current has a maximum value corresponding to that of the first current at the threshold dose rate. The excess of the first current over the second current, which occurs above the threshold, is integrated and an alarm is given at a selected integrated value of the excess corresponding to a selected radiation dose. (AEC)
- Inventors:
- Issue Date:
- OSTI Identifier:
- 4818092
- Patent Number(s):
- 3038997
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- NSA Number:
- NSA-16-019146
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-62
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ENGINEERING AND EQUIPMENT; BACKGROUND; ELECTRICITY; IONIZATION CHAMBERS; MONITORING; RADIATION DOSES; RADIATION MONITORING; RATE METERS; SURFACES
Citation Formats
Manning, F W, Groothuis, S E, Lykins, J H, and Papke, D M. AREA RADIATION MONITOR. United States: N. p., 1962.
Web.
Manning, F W, Groothuis, S E, Lykins, J H, & Papke, D M. AREA RADIATION MONITOR. United States.
Manning, F W, Groothuis, S E, Lykins, J H, and Papke, D M. Tue .
"AREA RADIATION MONITOR". United States.
@article{osti_4818092,
title = {AREA RADIATION MONITOR},
author = {Manning, F W and Groothuis, S E and Lykins, J H and Papke, D M},
abstractNote = {S>An improved area radiation dose monitor is designed which is adapted to compensate continuously for background radiation below a threshold dose rate and to give warning when the dose integral of the dose rate of an above-threshold radiation excursion exceeds a selected value. This is accomplished by providing means for continuously charging an ionization chamber. The chamber provides a first current proportional to the incident radiation dose rate. Means are provided for generating a second current including means for nulling out the first current with the second current at all values of the first current corresponding to dose rates below a selected threshold dose rate value. The second current has a maximum value corresponding to that of the first current at the threshold dose rate. The excess of the first current over the second current, which occurs above the threshold, is integrated and an alarm is given at a selected integrated value of the excess corresponding to a selected radiation dose. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {6}
}