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 -