Gradual Variation of Distance between Electrodes as a Novel Method in Design of Single Wire, Position Sensitive Proportional Counter

Nasseri, M.M; Tavassoli, A; Zonobi, F

Gradual Variation of Distance between Electrodes as a Novel Method in Design of Single Wire, Position Sensitive Proportional Counter

Document Type : Research Paper

Authors

M.M Nasseri

A Tavassoli

F Zonobi

Abstract

Position sensitive detectors (PSD) are instruments that determine the position of the incident radiations. One type of these detectors is the gas flow proportional counter. Generally, position sensitive detector works in two different methods, so called charge division and rise time methods. In this paper, we explain our new method that is based on the gradual variation of the electrodes distance. Our results in this research show that the introduced method can be a good choice for determining the position of low energy radiations. In this counter, spatial resolution considered to be varying from 0.1 to 1mm along 15 centimeter of the active length.

Highlights

1. U.W. Arndt, “X-ray position-sensitive detectors,” J. Appl. Cryst, Vol (19), 145-163, (1986).

2. Kandarakisy, D. Cavourasyk, G.S. Panayiotakisz, C.D. Nomicosx, “Evaluating x-ray detectors for radiographic applications:a comparison of ZnSCdS:Ag with Gd2O2S:Tb and Y2O2S: Tb screens,” Phys. Med. Biol, Vol. 42, 1351-1373 (1997).

3. M.J. Yaffe and J.A. Rowlands, “X-ray detectors for digital radiography,” Phys. Med. Biol, Vol. 42, 1-39 (1997).
4. S.E. Baru, A.G. Khabakhpashev, L.I. Shekhtman, “A low-dose x-ray imaging device,” Eur. J. Phys. Vol. 19, 475–483 (1998).

5. M. Matoba and T. Sakae, “Position integral linearity of charge-division type position-sensing system and a method to obtain the total charge signal,” Nucl. Inst. Meth, Vol. 219, 160-164 (1984).

6. http://garfield.web.cern.ch/garfield/

Keywords

Position Sensitive Detectors

Charge Distribution

Electron Multipliers

Proportional Counters

Garfield Code

Energy Resolution

Electrodes

1. 1. U.W. Arndt, “X-ray position-sensitive detectors,” J. Appl. Cryst, Vol (19), 145-163, (1986).
1. 2. Kandarakisy, D. Cavourasyk, G.S. Panayiotakisz, C.D. Nomicosx, “Evaluating x-ray detectors for radiographic applications:a comparison of ZnSCdS:Ag with Gd2O2S:Tb and Y2O2S: Tb screens,” Phys. Med. Biol, Vol. 42, 1351-1373 (1997).
1. 3. M.J. Yaffe and J.A. Rowlands, “X-ray detectors for digital radiography,” Phys. Med. Biol, Vol. 42, 1-39 (1997).
2. 4. S.E. Baru, A.G. Khabakhpashev, L.I. Shekhtman, “A low-dose x-ray imaging device,” Eur. J. Phys. Vol. 19, 475–483 (1998).
1. 5. M. Matoba and T. Sakae, “Position integral linearity of charge-division type position-sensing system and a method to obtain the total charge signal,” Nucl. Inst. Meth, Vol. 219, 160-164 (1984).
1. 6. http://garfield.web.cern.ch/garfield/