Proceedings ArticleDOI
A new viewing theory on centroid finding for patterned position sensitive detectors (PPSD)
F. Javanmardi,T. Sakae,A. Nohtomi,Y. Uozumi,M. Matoba +4 more
- Vol. 1, pp 579-582
TLDR
In this paper, a new viewing theory (surface viewing theory) on position sensing is described, which removes this limitation by shortening the heights and broadening the widths of the readout channels (cathode strips).Abstract:
A study of a new viewing theory (surface viewing theory) on position sensing is described. The viewing that the infinite height cathode strips is based on it (linear viewing theory), limits the width of the readout channel to a severe narrow strip. Therefore, the number of channels for long length position sensing increases. The surface viewing theory, removes this limitation by shortening the heights and broadening the widths of the readout channels (cathode strips). In the surface viewing theory since the surface of the affected area is used for position determination, it is possible to broader sensing area comparing with the cathode strip, Preliminary designs and experiments show that the optimum sensing area (OPSA) based on the surface viewing theory decreases at least 10 times in number of the readout channels without any degradation in linearity comparing with the single cathode strip. Increasing the signal to noise ratio in sake of a better resolution is possible with vertical cascading of the OPSA. Two type combinations of the OPSA result in extended OPSAs that correspond to suitable patterns long length position sensitive detectors.read more
Citations
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Proceedings ArticleDOI
Severe hazards in two dimensional position sensing using wedge & strip and backgammon based patterns
TL;DR: In this article, a high resolution (025 mm) safe 2D ray trace type patterned telescope was manufactured for particle detection with low threshold energy, which is used for two dimensional position sensing.
Proceedings ArticleDOI
Interdependence of readout positions (X, Y) for two dimensional patterned position sensitive detectors
TL;DR: It is shown that severe dependence exists for one dimensional position sensing using patterned cathodes and the applications of this method must be reviewed for 2D position sensing.
References
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Journal ArticleDOI
Optimum geometry for strip cathodes or grids in MWPC for avalanche localization along the anode wires
TL;DR: In this paper, the optimum geometry for strip cathodes or grids in MWPC for avalanche localization along the anode wires through measurement of induced pulses is calculated, and the resolution limits due to electronic noise are established as a function of the required time resolution.
Journal ArticleDOI
Reduction in non-linearity in position-sensitive MWPCs
E. Mathieson,G.C. Smith +1 more
TL;DR: In this article, measurements of differential nonlinearity have been made with a small multiwire proportional chamber (MWPC) for two special cathode strip geometries, and the results have been compared with those for conventional strip geometry and with theoretical predictions.
Journal ArticleDOI
TCD (Triple Charge Division): a novel centroid finding method
TL;DR: In this article, a triple charge division (TCD) centroid finding method that uses a zigzag pattern for triple dividing of the cathode plane is introduced for medium length position sensitive detectors.