Application of Dozimetric Glasses to Measure the Fluence of Fast Electrons in Laser Experiments

Abstract

This paper describes a fluence sensor made on the basis of IS-7 dozimetric glass. Using such sensors, the fluence and the diagrams of directivity of flows of fast electrons at the LOOCH and ISKRA-5 facilities have been measured. It has been revealed that the electron flow at the ISKRA-5 facility is more narrowly focused and that the presence of background plasma with an electron concentration of n_e ∼ 10⁹ cm^–3 near the target leads to an increase in the maximum fluence of fast electrons by approximately an order of magnitude.