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KMID : 0385519960090030262
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Analytical Science & Technology
1996 Volume.9 No. 3 p.262 ~ p.269
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Development of Multiwire Proportional Counter for Measurement of Environmental-level Alpha Particles
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오필제/Oh, Pil Jae
박태순/이민기/김경화/Park, Tae Soon/Lee, Min Kie/Kim, Kyung Hwa
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Abstract
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The muiltiwire proportional counter for the measurement;´ of low-level and en-
vironmental cr particles emitting nuclides was developed. External dimension of the devel-
oped multiwire proportional counter is 350x290X30mm and the sensitivity area is 250xa
200mm
The wall material of the detector was selected the `stainless steel to prevent the defor- G.
mation by external impact and to obtain minimum background. The anode and cathode q
wires were used the stainless steel material of diameter 50prn. The spacing of each wires are ,j
10.0mm, 5.Omm´and the numbers of total wire are 21, 42 lines, respectively. xire
The multiwire proportional counter was designed that the measurement source is placed
within the detector to prevent the wall absorption effect and the efficiency variation, by *ire
various source heights.
The characteristics of the developed detector have been investigated to obtain the pla-
teau, operating voltage, background, counting efficiency, position sensitivity´ and energy
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