New viewing theory on centroid finding for patterned position sensitive detectors (PPSD)

F. Javanrnardi, T. Sakae, A. Nohtomi, Y. Uozumi, M. Matoba

Research output: Contribution to conferencePaperpeer-review


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 have a broader sensing area comparing with the ordinal 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 for long length position sensitive detectors.

Original languageEnglish
Number of pages4
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA
Duration: Nov 9 1997Nov 15 1997


OtherProceedings of the 1997 IEEE Nuclear Science Symposium
CityAlbuquerque, NM, USA

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Radiation
  • Radiology Nuclear Medicine and imaging


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