Improved e-beam electron range measurements: experiments and analysis

A thermoluminescent dosimeter electron range measurement technique has been used to measure the energy distribution of relativistic electrons in a diffuse e-beam. The doses produced by the e-beam at 12 aluminum absorber thicknesses have been measured. The experimental technique is described. Angular distributions of the electrons have also been obtained. The technique has been used to investigate a relativistic electron beam that has emerged from the steel exit port of a drift tube filled with He gas at a pressure below 1 torr. The sensitivity of the measuring technique to the beam energy and angular distribution has been investigated. The experimental results are compared to Monte Carlo calculations. The results are sensitive to maximum e-beam energy and can be used to explore e-beam physics