proportional counter tube

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Noun1.proportional counter tube - counter tube whose output pulse is proportional to number of ions produced
boron counter tube - a proportional counter tube for counting neutrons
counter tube - a measuring instrument for counting individual ionizing events
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References in periodicals archive ?
Table 1 shows a comparison of results from FISCHERSCOPE X-RAY instruments fitted with a proportional counter tube, PIN diode and silicon drift detector (SDD), respectively.
The FISCHERSCOPE X-RAY XDL with proportional counter tube, XDAL with PIN detector, or XDV- SDD with SDD detector are all available from Fischer Instrumentation (GB) Ltd.