OSCILLOMETRIC AND CONDUCTOMETRIC ANALYSIS OF AQUEOUS AND ORGANIC DOSIMETER SOLUTIONS

Conductometric and oscillometric evaluation methods have earlier been developed to determine absorbed dose in the ethanol-monochlorobenzene dosimeter solution. Recent investigations on the same solution as well as on alanine solutions included the study of the possible use of dif ferent type ''conductometric'' electrodes and the study of the effect of frequency on the sensitivity of the method. On the basis of these i nvestigations an oscillometric reader has been designed and tested. Th e same evaluation methods have been tested on the irradiated aqueous a lanine solutions, aiming also at the study of the applicable concentra tion of the alanine solute and the dose (1 to 50 kGy) and dose-rate ra nge using both electron (2.6 mu s at 13 mu A to 4 mu s at 1.0 A pulse length and beam current) and gamma radiation (0.13 to 30 kGy h(-1)).