DEVELOPMENT OF A LOW NOISE PREAMPLIFIER FOR THE DETECTION J&ND POSITION DETERMINATION OF SINGLE ELECTRONS IN A ~ERENKOV RING IMAGING DETECTOR BY CHARGE DrvIsIoN*
نویسندگان
چکیده
A preamplifier having 500 electrons noise (rms) has been developed for the detection and location of single electrons in a CRID detector at the SLD. A single channel contains preamp, RC-CR shaper, gain adjustment, driver, and calibration circuitry. Noise and linearity measurements are presented.
منابع مشابه
A novel approach to automatic position calibration for pixelated crystals in gamma imaging
Introduction: The position estimation in gamma detection system will have constant misplacements which can be corrected in the calibration procedure. In the pixelated crystal uniformly irradiation of detector will produce irregular shape due to position estimation errors. This image is called flood field image and is used to calibrate the position estimation. In this work we pr...
متن کاملSimulation of a Neutron Detector for Real Time Imaging Applications
Monte Carlo Method is used to simulate a double layer gadolinium-amorphous silicon thermal neutron detector. The detector fabricated in pixel array configuration has various applications including neutron imaging. According to the simulation results, a detector consisting of a gadolinium (Gd) film with thickness of 2-4 ~m, sandwiched properly with two layers of sufficiently thick (-30 ?µm) hydr...
متن کاملA Position-Sensitive Ionization Chamber for Thermal Neutrons
A position-sensitive neutron detector based on He is being developed for a national crystal backscattering spectrometer (CBS) at a pulsed neutron source. It comprises a single gas volume, of constant depth, in the form of an annulus that is also part of a truncated cone. Charge from each event is collected on one or two anode strips, out of a total 336 around the annulus, yielding an angular re...
متن کاملA Low-Noise, Wideband CMOS Charge Sensitive Preamplifier for the High Precision Pixel Detector
A 0.18μm CMOS low-noise wideband charge sensitive preamplifier (CSP) used in a high precision pixel detector was presented in this paper. The preamplifier consists of charge amplification and constant current feedback circuit to accumulate the input charge signal in the feedback capacitor and discharge it by constant current. The open-loop gain of the preamplifier is 52dB at DC, and -3dB bandwi...
متن کاملCMOS Readout System for a Double-sided Germanium Strip Detector
A wide variety of applications require a hard Xray or gamma ray detector which combine both good spatial resolution and energy resolution. Double-sided solid-state strip detectors provide this capability. We report on the development of CMOS electronics designed for photon detection with strip detectors. These electronics include a low noise preamplifier, semi-gaussian shaping amplifier, discri...
متن کامل