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Thermoluminescence dosemeter reader

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专利汇可以提供Thermoluminescence dosemeter reader专利检索,专利查询,专利分析的服务。并且PURPOSE: To enlarge measurement range so as to permit measurement of large dose as well by constituting such circuits which do not affect with each other by the combination use of a current integration method and the use of a photon counting method.
CONSTITUTION: The apparatus is provided with a photo electron multiplier 7 which detects thermoluminescence, a pulse amplifier 11 which separates and amplifies pulse signals from the output signal thereof and a DC amplifier 15. The upper limit of the band of the pulse amplifier 11 is restricted hy the band f
c of the amplifier itself and the lower limit by a frequency 1/2πR
2 C
1 . The upper limit of the DC amplifier 15 becomes 1/2πR
1 C
1 . The signal source impedance for the amplifier 15 becomes the parallel impedances of R
1 and C
1 and becomes high impedance with respect to low frequency, thus the insulation resistance of C
1 prevents R
2 from affecting the DC components. For the amplifier 11, the input impedance is only R
2 and R
3 prevents the input capacity of the amplifier 15 from giving influence. Hence, the two amplifiers do not interfere with each other to one photo electron amplifier and the DC components and pulse components may be selectively amplified.
COPYRIGHT: (C)1979,JPO&Japio,下面是Thermoluminescence dosemeter reader专利的具体信息内容。

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