TY - JOUR T1 - Design and Development of a Charge-Sensitive Preamplifier for Nuclear Pulse Processing AU - Islam, M. Nazrul AU - Fujiwara, T. AU - Kenji, S. AU - Takahashi, H. AU - Kh. Asaduzzaman, Kh. AU - Shahzamal, Md. AU - Mia, Md.N. Haque AU - Alam, M.S. AU - Hasan, Mahmudul AU - Hoq, Mahbubul JO - International Journal of System Signal Control and Engineering Application VL - 7 IS - 2 SP - 33 EP - 35 PY - 2014 DA - 2001/08/19 SN - 1997-5422 DO - ijssceapp.2014.33.35 UR - https://makhillpublications.co/view-article.php?doi=ijssceapp.2014.33.35 KW - Radiation KW -etector KW - op-amp KW -preamplifier and charge-sensitive preamplifier KW -resistor AB - 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. ER -