D. K. Bewley

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The rationale for introducing fast neutrons in therapy initially was a reduction in the Oxygen Enhancement Ratio (OER). The recent radiobiological developments indicate that, more generally, fast neutrons tend to reduce the difference in radiosensitivity between cell lines, or related to the degree of oxygenation (Oxygen Gain Factor), the position of the(More)
Experimental results suggest advantages for neutrons where cells are hypoxic, in tumors which are slowly growing and also in a relative sparing of bone damage. The neutrons available at Hammersmith were of 7.5 MeV energy and produced a poorly penetrating beam, unsuitable for treating tumors in the pelvis and abdomen. Patients with locally advanced tumors in(More)