Wide-range radiation dose monitor

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865852

Kopp, Manfred K ^[1]

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1. Oak Ridge, TN

A radiation dose-rate monitor is provided which operates in a conventional linear mode for radiation in the 0 to 0.5 R/h range and utilizes a nonlinear mode of operation for sensing radiation from 0.5 R/h to over 500 R/h. The nonlinear mode is achieved by a feedback circuit which adjusts the high voltage bias of the proportional counter, and hence its gas gain, in accordance with the amount of radiation being monitored. This allows compression of readout onto a single scale over the range of 0 to greater than 500 R/h without scale switching operations.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4588892
• OSTI ID: 865852
• Country of Publication: United States
• Language: English

Related Subjects

wide-range
radiation
dose
monitor
dose-rate
provided
operates
conventional
linear
mode
range
utilizes
nonlinear
operation
sensing
500
achieved
feedback
circuit
adjusts
voltage
bias
proportional
counter
hence
gas
accordance
amount
monitored
allows
compression
readout
single
scale
switching
operations
voltage bias
feedback circuit
radiation dose-rate
proportional counter
radiation dose
dose-rate monitor
range radiation
/250/