Study of High Sensitivity Sensor Based on the Principle of Photoionization

Kun Wang Niu; Ting Liang; Fang Yang; Qing Meng; Kai Wang; Ji Jun Xiong

doi:10.4028/www.scientific.net/KEM.503.188

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Study of High Sensitivity Sensor Based on the Principle of Photoionization
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 503Study of High Sensitivity Sensor Based on the...

Study of High Sensitivity Sensor Based on the Principle of Photoionization

Abstract:

The quality of designing structure and properties of sensor photoionization room，directly determines its weak signal detection sensitivity detection and effecting ionization chamber detection efficiency .The paper experiments on four factors of affect the sensitivity of sensor. The results show that: the signal intensity proportional to the area of the ionization chamber; signal intensity goes up with the increase of bias voltage, and with bias voltage into a square the relationship; signal strength was first increased and then decreased with the growth of the distance between electrodes; signal strength was first increased and then decreased. With the growth of light-driven power.

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Periodical:

Key Engineering Materials (Volume 503)

Pages:

188-193

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.503.188

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Online since:

February 2012

Authors:

Kun Wang Niu, Ting Liang, Fang Yang, Qing Meng, Kai Wang, Ji Jun Xiong

Keywords:

Bias Voltage, Drive Power, Ionization Chamber, PID

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