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Two-dimension multiwire detector for ionizing radiation; Detector multifilar bidimensional para radiacao ionizante

Abstract

A multiwire proportional Counter of 100 x 100 mm{sup 2} sensitive area has been developed. The chamber is formed by three planes: a cathode plane of 50 {mu}m gold coated tungsten wires stretched on an Epoxi frame; and anode plane made of 20 {mu}m gold plated tungsten wires stretched at 45 deg C with respect to the first cathode wires; and second cathode plane made of copper strips on a printed circuit board at 90 deg C with respect to the first cathode. The cathode strips are connected to the taps of delay-lines chips. The position of the incidence of radiation is extracted by measuring the time difference of the pulse arriving at the extremities of the delay-line chain for each coordinate. The performance of the detector has been tested using 5.89 KeV X-rays from a {sup 55} Fe source, and 8.04 KeV from Rigaku X-rays generator, operating the detector with 90% Ar + 10% CH{sub 4} gas mixture at 930 mbar. An energy resolution of 26% was obtained. An integral non linearity better than 0.3% and a position resolution better than 1 mm have been observed. The information corresponding to each one of the coordinates were digitized by a  More>>
Publication Date:
Dec 31, 1993
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-3623
Reference Number:
SCA: 440102; PA: AIX-29:045601; EDB-98:089304; SN: 98001997407
Resource Relation:
Other Information: DN: 56 refs., 68 figs.; TH: Tese (M.Sc.); PBD: 1993
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; DETECTION; IONIZING RADIATIONS; MULTIWIRE PROPORTIONAL CHAMBERS; RADIATION DETECTION; RADIATION DETECTORS
OSTI ID:
636512
Research Organizations:
Sao Paulo Univ., SP (Brazil). Inst. de Fisica
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE98633162; TRN: BR98I1070045601
Availability:
INIS; OSTI as DE98633162
Submitting Site:
BRN
Size:
149 p.
Announcement Date:
Sep 10, 1998

Citation Formats

Barberino, Carlos Henrique. Two-dimension multiwire detector for ionizing radiation; Detector multifilar bidimensional para radiacao ionizante. Brazil: N. p., 1993. Web.
Barberino, Carlos Henrique. Two-dimension multiwire detector for ionizing radiation; Detector multifilar bidimensional para radiacao ionizante. Brazil.
Barberino, Carlos Henrique. 1993. "Two-dimension multiwire detector for ionizing radiation; Detector multifilar bidimensional para radiacao ionizante." Brazil.
@misc{etde_636512,
title = {Two-dimension multiwire detector for ionizing radiation; Detector multifilar bidimensional para radiacao ionizante}
author = {Barberino, Carlos Henrique}
abstractNote = {A multiwire proportional Counter of 100 x 100 mm{sup 2} sensitive area has been developed. The chamber is formed by three planes: a cathode plane of 50 {mu}m gold coated tungsten wires stretched on an Epoxi frame; and anode plane made of 20 {mu}m gold plated tungsten wires stretched at 45 deg C with respect to the first cathode wires; and second cathode plane made of copper strips on a printed circuit board at 90 deg C with respect to the first cathode. The cathode strips are connected to the taps of delay-lines chips. The position of the incidence of radiation is extracted by measuring the time difference of the pulse arriving at the extremities of the delay-line chain for each coordinate. The performance of the detector has been tested using 5.89 KeV X-rays from a {sup 55} Fe source, and 8.04 KeV from Rigaku X-rays generator, operating the detector with 90% Ar + 10% CH{sub 4} gas mixture at 930 mbar. An energy resolution of 26% was obtained. An integral non linearity better than 0.3% and a position resolution better than 1 mm have been observed. The information corresponding to each one of the coordinates were digitized by a TDC in a CAMAC system and stored event by event in a micro-computer (IBM-AT). (author) 56 refs., 68 figs.}
place = {Brazil}
year = {1993}
month = {Dec}
}