- Reduced output of orthovoltage radiotherapy units.
Reduced output of orthovoltage radiotherapy units.
Medical physics (1976-03-01)
C K Bomford
PMID1264042
ABSTRACT
Three causes of reduced output of orthovoltage radiotherapy units have recently been reported in this journal, each being due to faults external to the tube insert. A further incident is now reported where the output was reduced by 30% due to the tungsten foil becoming partially detached from the anode, while the unit continued to operate normally. The possible cause and the prevention of a repeat occurrence are discussed.
MATERIALS
Product Number
Brand
Product Description
Tungsten, foil, 0.5m coil, thickness 0.02mm, coil width .5mm, as rolled, 99.95%
Tungsten, foil, 0.5m coil, thickness 0.05mm, coil width 2mm, as rolled, 99.95%
Tungsten, foil, light tested, 25x25mm, thickness 0.009mm, 99.95%
Tungsten, foil, light tested, 50x50mm, thickness 0.025mm, as rolled, 99.95%
Tungsten, foil, light tested, 100x100mm, thickness 0.025mm, as rolled, 99.95%
Tungsten, foil, 50x50mm, thickness 0.3mm, as rolled, 99.95%
Tungsten, foil, 100x100mm, thickness 0.1mm, as rolled, 99.95%
Tungsten, foil, 50x50mm, thickness 0.125mm, as rolled, 99.95%
Tungsten, foil, 100x100mm, thickness 0.125mm, as rolled, 99.95%
Tungsten, foil, light tested, 50x50mm, thickness 0.05mm, as rolled, 99.95%
Tungsten, foil, light tested, 25x25mm, thickness 0.01mm, 99.95%
Tungsten, foil, light tested, 25x25mm, thickness 0.015mm, 99.95%
Tungsten, foil, 5m coil, thickness 0.025mm, coil width 1mm, as rolled, 99.95%