Abstract
A Careful daily record is kept in this Department to indicate the number of radium containers in use on the wards and those held in the radium safe. This record is a valuable safeguard against the loss of radium, but in itself is not sufficient. There is always a possibility that radium may be accidentally removed from the ward in soiled linen in transit to the laundry or in the bins containing used dressings. It is our policy to monitor all the bags of soiled linen and dressing bins leaving the ward. Up to the present, this has been done manually by means of a pistol radiation monitor or a portable Geiger counter. The first of these instruments suffers from two faults from our point of view: (i) it is battery operated, and batteries need continual replacement, and (ii) it is rather sluggish, relying on an ionization chamber for its operation. As a result of this, it might fail to detect a small quantity of radium if handled by an inexperienced operator. The second instrument is very suitable for the purp...
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