Physics in medicine and biology, 49(1), 17-32 (2004-02-20)
Two dosimetry protocols based on absorbed dose to water have recently been implemented: TG-51 and TRS-398. These protocols use different beam-quality indices: %dd(10)x and TPR20,10. The effect of electron contamination in measurements of %dd(10)x has been proposed as a disadvantage
Data are presented to allow the photon beam quality specifier being used in the new AAPM TG-51 protocol, %dd(10)x, to be extracted from depth-dose data measured with a 1 mm lead foil either 50 cm or 30 cm from the
The lead foil of dental x-ray film packets may cause a number of artifacts; especially well known are the "tractor treads" and "herringbone patterns" following a backward filmpositioning in the patient's mouth. In the present paper a specific and seldomly
The British journal of radiology, 82(978), 504-508 (2009-01-21)
It is useful to utilise a computed radiography system with a combination of storage phosphor plates and therapy cassettes for portal images. However, the therapy cassette has some disadvantages. The objective of the present study was to determine whether the
Nuclear medicine communications, 21(9), 851-855 (2000-11-07)
During measurements of the extrinsic spatial resolution of a gamma camera, it was noted that there was a variation with the position in the field of view. The problem was traced to the collimator, and this was confirmed by inspection
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