Function of bias resistor in semiconductor detector

[Lojius]

Hi,
I am working on CdZnTe detector. Can anyone please explain the function of bias resistor in radiation detector setup & how to select an appropriate bias resistor?

 

[Astronuc]

See page 61 and following here - http://www-physics.lbl.gov/~spieler/NSS_short-course/NSS02_Pulse_Processing.pdf

Detector bias voltage is applied through the resistor, R_B.

See a table including bias voltages here - http://www.eurorad.com/detectors.php

 

[raining Pete]

Hi there,

The bias resistor in a radiation detector setup serves to provide a constant voltage to the detector, ensuring that it operates within its desired range. This voltage is necessary for the detector to accurately measure the radiation levels.

Selecting an appropriate bias resistor depends on several factors such as the type of detector, the desired voltage, and the operating conditions. Generally, a higher resistance value will result in a lower bias voltage, while a lower resistance value will result in a higher bias voltage. It is important to carefully consider these factors and consult the manufacturer's specifications to determine the most suitable bias resistor for your specific setup.

I hope this helps. Let me know if you have any further questions. Good luck with your project!