A possible water calorimeter based on radiation-induced conductivity

A calorimeter is proposed that measures the delivered dosage of radiation by the induced electrical conductivity in water through the production of long-lived ions. The device is being developed for use in providing real-time measurements of beam losses in particle accelerators. It promises to be a simple, reliable, and accurate device with a linear response from a fraction of a gray up to a megagray, with potential application in industry and medical clinics. A theoretical model of the physical processes that produce the long-lived ions based on delta rays is presented in this paper and compared with the existing data.