Journal of Medical Physics
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Year : 1993  |  Volume : 18  |  Issue : 3  |  Page : 21-24

Applications Of Short S.S.D Head And Neck External Beam Radiotherapy Units : Cost Effectiveness And Justification In The Indian Context

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R Ravichandran

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In India significant percentage (25%-30%) of cancer patients are to be treated for head and neck sites where there is no need for rotational techniques. The field sizes are also small. A dedicated short SSD (40 cm) cobalt machine with 74 TBq (2000 Ci) capacity appears to be relevant and cost effective. If suitably designed, these machines could make use of decayed cobalt sources removed from long SSD models. If skin-sparing effect is preserved at short SSD, there is definite scope for such machines in the treatment of cancer patients. The possible design feature of such machine is highlighted

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