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International Journal of System Signal Control and Engineering Application

ISSN: Online
ISSN: Print 1997-5422
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Design and Development of a Charge-Sensitive Preamplifier for Nuclear Pulse Processing

M. Nazrul Islam, T. Fujiwara, S. Kenji, H. Takahashi, Kh. Kh. Asaduzzaman, Md. Shahzamal, Md.N. Haque Mia, M.S. Alam, Mahmudul Hasan and Mahbubul Hoq
Page: 33-35 | Received 21 Sep 2022, Published online: 21 Sep 2022

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Abstract

Researchers attempt to describe a charge-sensitive preamplifier for fast pulse processing. The charge sensitive preamplifier uses a capacitor in place of the feedback resistor. The input capacitance of this circuit is Cin = ACf, where A is the open-loop gain of the op-amp. If the op-amp gain is high enough that Ci<<Cin, the external capacitance can be neglected. The charge Q is stored onto the feedback capacitor Cf, producing an output pulse of height V = -Q/Cf independent of the detector and stray capacitances. Since, there is a high voltage on the detector electrode, the amplifier input is connected to the cathode of the GM detector through a ground full-up resistor.


How to cite this article:

M. Nazrul Islam, T. Fujiwara, S. Kenji, H. Takahashi, Kh. Kh. Asaduzzaman, Md. Shahzamal, Md.N. Haque Mia, M.S. Alam, Mahmudul Hasan and Mahbubul Hoq. Design and Development of a Charge-Sensitive Preamplifier for Nuclear Pulse Processing.
DOI: https://doi.org/10.36478/ijssceapp.2014.33.35
URL: https://www.makhillpublications.co/view-article/1997-5422/ijssceapp.2014.33.35