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Dosimetric accuracy at low monitor unit settings

Department of Medical Physics, Weston Park Hospital, Whitham Road, Sheffield S10 2SJ

This excerpt was created in the absence of an abstract.

I read with interest the article by Das et al (1991) and appreciate the authors' concern over the accuracy of dosimetry systems at high dose rates and low monitor unit settings.

The purpose of writing this letter is to underline that, in the UK, the accuracy of patients' treatments should not be jeopardized as suggested, in that short exposures on linear accelerators have been deprecated for the past 20 years (HMSO, 1972; DHSS, 1975; NRPB, 1988).

Received for publication April 10, 1991. Accepted for publication July 23, 1991.