G.E. SRT-2-IND Deep Therapy Tube
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This heavy and strongly discolored oil-immersed radiotherapy x-ray tube, dating to the fifties, is about 20 (50cms) long and 5(12.5cms) largest diameter. The anode is water-cooled through two tubular extensions (on the left in the picture), one of which is marked inlet. The Tungsten target is deep seated in the hooded copper anode. The filament. Is a flat helical spiral The
ground glass x-ray port hides a black metal filter (probably beryllium) fixed
by 12 bushings to the anode (made
visible in the picture by rubbing the ground glass window with paraffin oil). Such tubes could be run up to 250 kV or
may be more. An intriguing point is the Cost in 1958 : about $2450.- |
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