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Experimental test of a new method for kVp measurements
Author(s) -
Joseph Peter M.
Publication year - 1975
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594180
Subject(s) - medical physics , dosimetry , test (biology) , medical imaging , nuclear medicine , computer science , physics , medicine , artificial intelligence , geology , paleontology
We present the results of an experimental test of a new method for measuring the kVp of a diagnostic x‐ray beam. The method involves measuring x‐ray attenuation in copper or tin absorbers and plotting the attenuation curve in a new way. Our measurements were done at 60, 90, 100, and 120 kVp on a 3‐phase, 12‐pulse diagnostic generator. The kVp was measured with a calibrated voltage divider‐oscilloscope system. Except at 90 kVp, excellent agreement was found, with precisions on the order of ±1%. The 90‐kVp point appeared to be somewhat affected by characteristic tungsten radiation and gave agreement with a lower value of precision.