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Title: Ionization detector, electrode configuration and single polarity charge detection method

Patent ·
OSTI ID:871691
 [1]
  1. Ann Arbor, MI
+ Show Author Affiliations

An ionization detector, an electrode configuration and a single polarity charge detection method each utilize a boundary electrode which symmetrically surrounds first and second central interlaced and symmetrical electrodes. All of the electrodes are held at a voltage potential of a first polarity type. The first central electrode is held at a higher potential than the second central or boundary electrodes. By forming the first and second central electrodes in a substantially interlaced and symmetrical pattern and forming the boundary electrode symmetrically about the first and second central electrodes, signals generated by charge carriers are substantially of equal strength with respect to both of the central electrodes. The only significant difference in measured signal strength occurs when the charge carriers move to within close proximity of the first central electrode and are received at the first central electrode. The measured signals are then subtracted and compared to quantitatively measure the magnitude of the charge.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
DOE Contract Number:
FG08-94NV11630
Assignee:
Regents of University of Michigan (Ann Arbor, MI)
Patent Number(s):
US 5777338
OSTI ID:
871691
Country of Publication:
United States
Language:
English

References (5)

New gamma-ray detector structures for electron only charge carrier collection utilizing high-Z compound semiconductors
  • Patt, B. E.; Iwanczyk, J. S.; Vilkelis, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 380, Issue 1-2 https://doi.org/10.1016/S0168-9002(96)00495-0
journal October 1996
Single‐polarity charge sensing in ionization detectors using coplanar electrodes journal November 1994
Performance of CdZnTe coplanar-grid gamma-ray detectors journal June 1996
Unipolar charge sensing with coplanar electrodes-application to semiconductor detectors journal January 1995
1-D position sensitive single carrier semiconductor detectors
  • He, Zhong; Knoll, Glenn F.; Wehe, David K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 380, Issue 1-2 https://doi.org/10.1016/S0168-9002(96)00352-X
journal October 1996

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