Industrial Radiation Monitor (INDRAM)

Introduction

 

In many applications of radiation in medicine and industry, the working areas have to be monitored routinely in order to minimize radiation exposures to workers and also public in general. This is called area monitoring and the instruments used to determine the radiation levels are called area monitors. Area monitors used for monitoring x-rays and gamma radiation levels from sealed sources are Industrial Radiation Monitors. Industrial Radiation Monitor INDRAM-AUTO is used for monitoring radiation levels upto 1R/hr in four decades of analog display. Philips 18503 with energy compensation filter is used as a GM detector. Another model of Industrial Radiation Monitor has been developed with digital display named INDRAM-DIG(H) which can be used for monitoring radiation levels upto 10R/hr with a four digit LCD display with auto ranging facility and aural indication of the presence of radiation level also. Philips 18550 with energy compensation filter is used as a GM detector. The radiation levels to be measured in area monitoring are from very low levels to very high levels. These area monitors should have suitable indicators to display the radiation levels.

 

Specifications

 

A.   INDRAM-AUTO

 

Detector	:	Philips 18503 with energy compensation filter
Energy Range	:	80keV - 2.0 MeV
Range of exposure	:	0.1mR/hr to 1R/hr in four ranges
Display	:	0-50 mA panel meter
Accuracy	:	+/- 20%
Power requirement	:	4x1.5V battery cells

 

B.   INDRAM-DIG(H)

 

Detector	:	Philips 18550 with energy compensation filter
Energy Range	:	80keV - 2.0 MeV
Range of exposure	:	0.1mR/hr to 10R/hr
Display	:	4 digit LCD Display
Accuracy	:	+/-20%
Power requirement	:	4x1.5V battery cells

Application Areas

 

In places like industrial radiography installations, medical teletherapy departments, around nuclear reactors and research institutions.

NOTE : Upgraded version of INDRAM is "RADMON- Radiation Monitor for X and Gamma Rays".

• For further information please contact

 

Head, Technology Transfer & Collaboration Division,
Bhabha Atomic Research Centre,
Trombay, Mumbai- 400 085
Tel : 091-022-25593897
Fax : 091-022-25505151 / 25519613
Email : headttcd@barc.gov.in