Radiation facility at the JINR U-400 cyclotron checked by Fricke dosemeter measurements

摘要

A few years ago, a vertical beam line of the 4-meter heavy ion cyclotron in Dubna was dedicated to radiochemical and radiation research (KHIPTY facility) providing excellent conditions for irradiation of liquids and powders. Practical examination of the radiation part of this facility is reported on. Acidic aqueous ferrous sulfate solutions (Fricke dosemeter) were bombarded with 10 MeV/amu carbon-12 ions. Dose and ion energy dependence of the integral yield of Fe(sup 3+) formation was measured and compared with the data from three other laboratories to find a satisfactory agreement. Some technical problems of heavy ion experiments are discussed. 22 refs., 1 fig., 2 tabs. (Atomindex citation 27:000267)