Reduced output of orthovoltage radiotherapy units: three case reports
作者:
Edward V. Kennelly,
期刊:
Medical Physics
(WILEY Available online 2003)
卷期:
Volume 1,
issue 1
页码: 35-35
ISSN:0094-2405
年代: 2003
DOI:10.1118/1.1637276
出版商: American Association of Physicists in Medicine
数据来源: WILEY
摘要:
On three separate occasions, calibrations of radiotherapy orthovoltage units disclosed considerably reduced useful beam intensities without any apparent alteration of the tube current or tube voltage. These reductions would have been undetected by routine daily operation of the equipment unless a useful beam intensity monitoring unit were installed at the tube port or daily measurements were made of the useful beam intensity with calibrating instruments. Either or both monitoring methods are recommended for all radiotherapy units.
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