Angular dependence of bremsstrahlung produced by 17.5-keV electrons incident on thick Ag

作者：Requena S^*; Gonzales D; Williams S

来源：Physical Review A, 2011, 83(2): 022712.

DOI：10.1103/PhysRevA.83.022712

The bremsstrahlung produced by 17.5-keV electrons incident on a 2415 mu g/cm(2) Ag target has been measured at forward angles in the range 0 degrees to 55 degrees relative to the electron beam. The intensity of the thick-target bremsstrahlung produced is presented on an absolute scale at angles in this range, with corrections for detector efficiency, photon attenuation within the target itself, and other factors. After correction for photon attenuation within the target, the results indicate that bremsstrahlung is essentially isotropic. The experimental data are in approximate agreement with both the predictions of a modified version of the Kramers formula and the Monte Carlo program, PENELOPE.

• 出版日期2011-2-18