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

Abstract

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. 10 figs.

Inventors:
Publication Date:
Research Org.:
University of Michigan
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
672593
Patent Number(s):
US 5,777,338/A/
Application Number:
PAN: 8-763,675; TRN: 99:001058
Assignee:
Univ. of Michigan, Ann Arbor, MI (United States) PTO; SCA: 440101; PA: EDB-98:121065; SN: 98002024849
DOE Contract Number:  
FG08-94NV11630
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 7 Jul 1998
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; IONIZATION CHAMBERS; ELECTRODES; DESIGN; ELECTRIC POTENTIAL; CHARGE CARRIERS

Citation Formats

He, Z. Ionization detector, electrode configuration and single polarity charge detection method. United States: N. p., 1998. Web.
He, Z. Ionization detector, electrode configuration and single polarity charge detection method. United States.
He, Z. Tue . "Ionization detector, electrode configuration and single polarity charge detection method". United States. doi:.
@article{osti_672593,
title = {Ionization detector, electrode configuration and single polarity charge detection method},
author = {He, Z.},
abstractNote = {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. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 07 00:00:00 EDT 1998},
month = {Tue Jul 07 00:00:00 EDT 1998}
}