DocumentCode
1211031
Title
Calorimetric Measurement of the Energy Fluence of Diagnostic X-Ray Beams
Author
Nitzan, Meir ; Mahler, Yona ; Bodenheimer, Joseph S. ; Siew, Fred P.
Author_Institution
Department of Diagnostic Radiology, Hadassah University Hospital, Jerusalem, Israel, and the Medical Physics Group, Racah Institute of Physics, The Hebrew University
Issue
11
fYear
1983
Firstpage
737
Lastpage
741
Abstract
A method for measurement of the energy fluence of diagnostic X-ray beams is described, using total absorption calorimetry. Optimization of the absorbing element is discussed quantitatively, and it is shown that a lead plate of 1 mm is as sensitive as gold or platinum absorbers. Using Styrofoam insulation, semiadiabatic conditions pertain during the measurement time of 2-6 s. Use of the method is illustrated in measurement of energy fluence corresponding to tube voltages of 55-115 kVp. The results are in good agreement with those obtained from X-ray energy spectrum data.
Keywords
Biomedical measurements; Calorimetry; Density measurement; Electromagnetic wave absorption; Energy measurement; Hospitals; Physics; Radiology; Time measurement; Voltage; Biomedical Engineering; Calorimetry; Mathematics; Radiation, Ionizing; Thermodynamics; X-Rays;
fLanguage
English
Journal_Title
Biomedical Engineering, IEEE Transactions on
Publisher
ieee
ISSN
0018-9294
Type
jour
DOI
10.1109/TBME.1983.325188
Filename
4121539
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