Ionization chamber and measuring system for low-level dosimetry

Natalia Golnik , Z. Rusinowski , M. Zielczynski

Abstract

A system for low-level dosimetry is proposed, It contains a recombination chamber with specially designed electronic circuit. Polarizing electrodes of recombination chamber of REM-2 type are supplied from capacitors permanently connected to the electrodes. Ions, collected on the measuring electrode, charge a measuring capacitor that is also permanently connected to the electrode. The special procedure was introduced for charging the supplying capacitors and for reading the voltage on the measuring capacitor. The chamber can be used in saturation mode, when the collected charge is proportional to the absorbed dose, or in differential mode for determination of the ambient dose equivalent, H*(10). Experimental tests indicated that the measuring system with the REM-2 chamber allows measuring the H*(10) above 10 mu;Sv with uncertainty ca. 25\% in any field of penetration radiation, with an integration time up to several days
Author Natalia Golnik (FM / IMBE)
Natalia Golnik,,
- The Institute of Metrology and Biomedical Engineering
, Z. Rusinowski
Z. Rusinowski,,
-
, M. Zielczynski
M. Zielczynski,,
-
Pages3249-3252 vol.4
Book Enderle John D.: Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2000, vol. 4, 2000, ISBN 0-7803-6465-1
Keywords in English10 muSv, ambient dose equivalent, capacitors, Charge measurement, collected charge, current measurement, differential mode, Dosimetry, electrodes, electronic circuits, integration time, ionisation chambers, ionization chambers, low-level dosimetry, measuring system, penetration radiation, permanently connected capacitors, Polarization, polarizing electrodes, Recombination chamber, REM-2 type, specially designed electronic circuit, spontaneous emission, Voltage
DOIDOI:10.1109/IEMBS.2000.901597
Languageen angielski
Score (nominal)0
Publication indicators Scopus Citations = 1; WoS Citations = 0; GS Citations = 1.0
Citation count*1 (2016-09-05)
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