Hostname: page-component-6bf8c574d5-xtvcr Total loading time: 0 Render date: 2025-02-26T21:30:32.894Z Has data issue: false hasContentIssue false
  • English
  • Français

A High-Speed Signal Processor Using a Digital Divider for Position Sensitive Proportional Counters

Published online by Cambridge University Press:  06 March 2019

S. Kobashi ,
K. Mochiki ,
K. Hasegawa ,
A. Sekiguchi ,
H. Hashizume  and
Y. Yoshioka
S. Kobashi
Affiliation:
Faculty of Engineering, University of Tokyo, Kongo, Bunkyo-ku, Tokyo 113, Japan
K. Mochiki
Affiliation:
Faculty of Engineering, University of Tokyo, Kongo, Bunkyo-ku, Tokyo 113, Japan
K. Hasegawa
Affiliation:
Faculty of Engineering, University of Tokyo, Kongo, Bunkyo-ku, Tokyo 113, Japan
A. Sekiguchi
Affiliation:
Faculty of Engineering, University of Tokyo, Kongo, Bunkyo-ku, Tokyo 113, Japan
H. Hashizume
Affiliation:
Faculty of Engineering, University of Tokyo, Kongo, Bunkyo-ku, Tokyo 113, Japan
Y. Yoshioka
Affiliation:
Musashi Institute of Technology, Tamazutsumi, Setagaya-ku, Tokyo 158, Japan
Get access

Extract

Most position sensitive proportional counters (PSPCs) currently used in X-ray diffraction experiments have a dead time longer than 5 μs. Though such PSPCs are useful in measuring weak diffraction diagrams, a faster counter is needed to detect strong X-ray diagrams produced with synchrotron radiation sources. The long dead time of PSPCs using a charge division position read-out is due to the slow analog division circuit plus analog-to-digital converter employed in the present system. A fast processor can be built utilising two high-speed ADCs to digitize voltage signals from the detector, followed by a digital divider to compute position of detected photons. The present paper describes the design of such a processor and some preliminary testings of its performances.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 24: Twenty-Ninth Annual Conference on Applications of X-ray Analysis, August 4-8, 1980 , 1980 , pp. 173 - 176
Copyright
Copyright © International Centre for Diffraction Data 1980

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Kobashi, S., Mochiki, K., Hashizume, H., Hasegawa, K. and Sekiguchi, A., A fast digital processor for position sensitive proportional counters, to be published.Google Scholar
2. Yoshioka, Y., Hasegawa, K. snd Mochiki, K., A position sensitive proportional counter for residual stress measurement by means of microbeam X-rays, Advances in X-ray Analysis 23:325 (1980)Google Scholar