Pocket Ion Chambers and Film

["Flora, Jason" <jgf7@cdc.gov>]

In the early days of the Atomic Energy Commission, many facilities
utilized
Pocket Ion Chambers to assign radiation dose to personnel.  Two of these
devices were often issued to workers and the lowest measurement assigned
as the absorbed radiation dose to the worker.

Radiation Sensitive Film was later used to discriminate the energies of
the
incident radiation and assign radiation dose.  Pocket Ion Chambers were
often used with Film and the records of these measurements have been
archived.

DISCUSSION:________________________________________________

How appropriate is it to use dose estimates from Pocket Ion Chambers and
compare/add  their readings to Film dosimeter measurements?

A very interesting approach is described in a paper by,
Watkins et al , March 1997, Applied Occupational and Environmental
Hygiene
Volume 12(3), Pg. 195.
"Collection, Validation, and Treatment of Data for a Mortality Study of
Nuclear
  Industry Workers"

I would appreciate your insight on this topic.

(Comments are those of the author and may not represent the views of
NIOSH or WESTAT)
				Jason Flora/WESTAT
				NIOSH HAMILTON Bldg
				DSHEFS/HERB
				4676 Columbia Pkwy R-44
				Cincinnati, OH 45226

			Voice:	513 841-4464
			Fax:	513 841-4470
			Email:	jgf7@cdc.gov