Volume 70, Issue 6, June 1999
Index of content:
A simple technique using the diffraction pattern of a shadow region for the evaluation of a vertex of a wedge having an acute angle70(1999); http://dx.doi.org/10.1063/1.1149813View Description Hide Description
The dependence of the diffraction in the shadow on the finish of a vertex of a wedge having an acute angle is studied experimentally. The length of a rounded top can be obtained by analyzing the diffraction intensity along the vertical line from the vertex. This method is a valuable technique for evaluating the finish of a vertex of a small wedge having an acute angle. It is found that this technique makes the evaluating system simple.
70(1999); http://dx.doi.org/10.1063/1.1149814View Description Hide Description
A method to reduce the dead time of multichannel analyzers which uses multiple sample-and-hold circuits in the input circuitry of the analyzer’s analog-digital converter is proposed. Due to the exponential distribution of time intervals between successive pulses, the dead time is greatly reduced with even a small number of sample-and-hold circuits. The effects of the method are analyzed and discussed by means of Monte Carlo simulations.