Absolute Intensities of Characteristic Ka Radiation from an Inclined Copper Target

Abstract

Experimental results are given for the measurements of the absolute intensity of characteristic Ka radiation from a thick copper target when the normal to the target is inclined to the incident electron beam at an angle (I equal to 20°, 30°, 40°, and 50°. These measurements cover a range of electron energies between 20 and 50 kV, and take·off angles q, ranging from 1° to 50°. A comparison is made with the emission at normal incidence. The copper Ka radiation was isolated by means of balanced nickel and iron filters, and the intensity mllasurements were made with a scintillation counter with NaI(TI) crystal