A Type of Geiger-Müller Counter Suitable for the Measurement of Diffracted Mo K X-Rays

Publisher Website
Google Scholar
Abstract
The design and construction of Geiger‐Müller counters which will respond reliably to Mo K x‐rays is described. The impulses are amplified and recorded mechanically with the aid of a thyratron circuit. The amplifying and counting circuit, and the counting mechanism, are also described. The time of recovery of the counters has been determined by the use of an oscillograph and found to be less than 0.001 sec. when the proper values are used for the resistance and capacitance of the counter circuit. It is shown that for counting rates up to 600 per minute there is less than a 1 percent correction due to the fact that the impulses are random in nature. Several fundamental tests are described, which have been applied to the counter and the circuit. These tests have shown the counter and the circuit to be a reliable method of measuring x‐ray intensities. Graphs are shown of the diffraction patterns of NaCl and KCl taken by means of the counters. These graphs duplicate the well‐known diffraction patterns of these materials, thus giving additional evidence of the reliability of the counters.

This publication has 11 references indexed in Scilit: