When an ion chamber containing a low conductivity liquid is exposed to a very short pulse of ionizing radiation ∼ 10-7 seconds), the current in the external circuit is high during the pulse and then falls rapidly and nonexponentially towards zero. Further, the shape of the curve depends on both the delivered dose and the collecting field. A theoretical analysis of the liquid ion chamber under these conditions is given quantitating the effect of space charge and deriving expressions relating the observed current to the fundamental physical properties of the liquid. Experimental data for n-hexane are also shown covering six decades of both time and current for various collecting fields and incident doses for which data essentially establish the theoretical treatment. One-MeV electron beam irradiations were used ranging from 0.8 to 120 ma in pulse lengths from 10-8 to 10-6 second. Besides values for the recombination coefficient and other parameters, evidence is given of ionic charge multiplicity and free unattached electrons during the initial stages of the process.
Skip Nav Destination
Research Article| April 01 1970
Ionization Currents in Liquid Ionization Chambers: Low Conductivity Liquids
Radiat Res (1970) 42 (1): 13–33.
- Views Icon Views
- Share Icon Share
- Search Site
E. C. Gregg, G. Bakale; Ionization Currents in Liquid Ionization Chambers: Low Conductivity Liquids. Radiat Res 1 April 1970; 42 (1): 13–33. doi: https://doi.org/10.2307/3572914
Download citation file:
Citing articles via
Commonalities Between COVID-19 and Radiation Injury
Carmen I. Rios, David R. Cassatt, Brynn A. Hollingsworth, Merriline M. Satyamitra, Yeabsera S. Tadesse, Lanyn P. Taliaferro, Thomas A. Winters, Andrea L. DiCarlo
Low-Dose Radiation Therapy (LDRT) for COVID-19: Benefits or Risks?
Pataje G. Prasanna, Gayle E. Woloschak, Andrea L. DiCarlo, Jeffrey C. Buchsbaum, Dörthe Schaue, Arnab Chakravarti, Francis A. Cucinotta, Silvia C. Formenti, Chandan Guha, Dale J. Hu, Mohammad K. Khan, David G. Kirsch, Sunil Krishnan, Wolfgang W. Leitner, Brian Marples, William McBride, Minesh P. Mehta, Shahin Rafii, Elad Sharon, Julie M. Sullivan, Ralph R. Weichselbaum, Mansoor M. Ahmed, Bhadrasain Vikram, C. Norman Coleman, Kathryn D. Held
Photon GRID Radiation Therapy: A Physics and Dosimetry White Paper from the Radiosurgery Society (RSS) GRID/LATTICE, Microbeam and FLASH Radiotherapy Working Group
Hualin Zhang, Xiaodong Wu, Xin Zhang, Sha X. Chang, Ali Megooni, Eric D. Donnelly, Mansoor M. Ahmed, Robert J. Griffin, James S. Welsh, Charles B. Simone, II, Nina A. Mayr
Germicidal Efficacy and Mammalian Skin Safety of 222-nm UV Light
Manuela Buonanno, Brian Ponnaiya, David Welch, Milda Stanislauskas, Gerhard Randers-Pehrson, Lubomir Smilenov, Franklin D. Lowy, David M. Owens, David J. Brenner