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Title: Wire chamber radiation detector with discharge control

Abstract

A wire chamber radiation detector (11) has spaced apart parallel electrodes (16) and grids (17, 18, 19) defining an ignition region (21) in which charged particles (12) or other ionizing radiations initiate brief localized avalanche discharges (93) and defining an adjacent memory region (22) in which sustained glow discharges (94) are initiated by the primary discharges (93). Conductors (29, 32) of the grids (18, 19) at each side of the memory section (22) extend in orthogonal directions enabling readout of the X-Y coordinates of locations at which charged particles (12) were detected by sequentially transmitting pulses to the conductors (29) of one grid (18) while detecting transmissions of the pulses to the orthogonal conductors (36) of the other grid (19) through glow discharges (94). One of the grids (19) bounding the memory region (22) is defined by an array of conductive elements (32) each of which is connected to the associated readout conductor (36) through a separate resistance (37). The wire chamber (11) avoids ambiguities and imprecisions in the readout of coordinates when large numbers of simultaneous or near simultaneous charged particles (12) have been detected. Down time between detection periods and the generation of radio frequency noise are alsomore » reduced.« less

Inventors:
 [1];  [1]
  1. (Berkeley, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
865132
Patent Number(s):
4465933
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
wire; chamber; radiation; detector; discharge; control; 11; spaced; apart; parallel; electrodes; 16; grids; 17; 18; 19; defining; ignition; region; 21; charged; particles; 12; ionizing; radiations; initiate; brief; localized; avalanche; discharges; 93; adjacent; memory; 22; sustained; glow; 94; initiated; primary; conductors; 29; 32; section; extend; orthogonal; directions; enabling; readout; x-y; coordinates; locations; detected; sequentially; transmitting; pulses; grid; detecting; transmissions; 36; bounding; defined; array; conductive; elements; connected; associated; conductor; separate; resistance; 37; avoids; ambiguities; imprecisions; simultaneous; near; time; detection; periods; generation; radio; frequency; noise; reduced; wire chamber; radio frequency; charged particles; spaced apart; glow discharge; charged particle; radiation detector; ionizing radiation; orthogonal directions; parallel electrodes; frequency noise; conductive elements; ignition region; avalanche discharge; chamber radiation; orthogonal direction; parallel electrode; /250/

Citation Formats

Perez-Mendez, Victor, and Mulera, Terrence A. Wire chamber radiation detector with discharge control. United States: N. p., 1984. Web.
Perez-Mendez, Victor, & Mulera, Terrence A. Wire chamber radiation detector with discharge control. United States.
Perez-Mendez, Victor, and Mulera, Terrence A. Sun . "Wire chamber radiation detector with discharge control". United States. https://www.osti.gov/servlets/purl/865132.
@article{osti_865132,
title = {Wire chamber radiation detector with discharge control},
author = {Perez-Mendez, Victor and Mulera, Terrence A.},
abstractNote = {A wire chamber radiation detector (11) has spaced apart parallel electrodes (16) and grids (17, 18, 19) defining an ignition region (21) in which charged particles (12) or other ionizing radiations initiate brief localized avalanche discharges (93) and defining an adjacent memory region (22) in which sustained glow discharges (94) are initiated by the primary discharges (93). Conductors (29, 32) of the grids (18, 19) at each side of the memory section (22) extend in orthogonal directions enabling readout of the X-Y coordinates of locations at which charged particles (12) were detected by sequentially transmitting pulses to the conductors (29) of one grid (18) while detecting transmissions of the pulses to the orthogonal conductors (36) of the other grid (19) through glow discharges (94). One of the grids (19) bounding the memory region (22) is defined by an array of conductive elements (32) each of which is connected to the associated readout conductor (36) through a separate resistance (37). The wire chamber (11) avoids ambiguities and imprecisions in the readout of coordinates when large numbers of simultaneous or near simultaneous charged particles (12) have been detected. Down time between detection periods and the generation of radio frequency noise are also reduced.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

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