Recombination in Parallel Plate Free-air Ionization Chambers
- 1 December 1961
- journal article
- research article
- Published by Oxford University Press (OUP) in The British Journal of Radiology
- Vol. 34 (408), 791-800
- https://doi.org/10.1259/0007-1285-34-408-791
Abstract
Consideration is given to the choice of the formula which best describes recombination between parallel plates. This formula is modified so that it may be applied to free-air ionization chambers. The modifications entail determining (1) the effective width of a circular cross-section X-ray beam, (2) the effect of space charge and (3) the effect of ion spread and distribution. The modified formula is checked experimentally with a small free-air chamber by varying field strength, dose-rate, beam quality and size and shape of the X-ray beam. Good confirmation is obtained.Keywords
This publication has 6 references indexed in Scilit:
- A Compact Free-air Chamber for Use in the Range 10–50 kVThe British Journal of Radiology, 1960
- Ein Diagramm zur Ermittlung der Sättigungsverluste bei Standard-IonisationskammernRöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, 1958
- The saturation curve at high ionization intensityBritish Journal of Applied Physics, 1952
- Ionization Measurements at Very High Intensities—Part IThe British Journal of Radiology, 1950
- Ionic recombination in airProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1938
- The Absolute Values of the Mobility of Gaseous Ions in Pure GasesPhysical Review B, 1932