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British Journal of Radiology (1990) 63, 125-127
© 1990 British Institute of Radiology
doi: 10.1259/0007-1285-63-746-125

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Dosimetric intercomparison in the British Institute of Radiology fractionation study of 3F/week versus 5F/week in radiotherapy of laryngo-pharynx cancer

J. H. Barrett T. J. Davy A. Dixon-Brown D. Goodman R. C. Lawson P. L. Ormsby J. E. Saunders P. C. Williams J. F. Fowler, Honorary Secretary and G. Wiernik, Chairman

The British Institute of Radiology, 36 Portland Place, London W1 N 4AT

A dose intercomparison was carried out by the National Physical Laboratory between the seven radiotherapy centres which contributed the largest number of patients to the British Institute of Radiology fractionation study of three fractions per week versus five fractions per week in clinical cancer treatment. Six of the centres showed remarkable agreement within the acceptable limits of error of the measurements. In one centre there appeared to be a physical dose discrepancy of 2.8% which was materially less than could be detected clinically.

Received for publication May 1, 1989.





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