552 research outputs found
Signal evaluation in multielectrode radiation detectors by means of a time dependent weighting vector
No full textDetermination of signal charge induced by a moving charge on a sensing electrode is of interest in many electronic devices, and especially in all radiation detectors based on a measurement of charge produced by the incident particle. In this paper Green’s “reciprocity theorem” is used to find the induced charge on one electrode of a multielectrode device while all other electrodes are grounded
"An interpolating filter for centroid finding of induced charge in MWPC's with strip cathodes".
No full text
“Low Noise, High Radiation Hardness Front-End Circuits Based Upon an Upgraded JFET Monolithic Process”.
No full text"Design of a charge sensitive preamplifier on high resistivity silicon".
No full textA low noise, fast charge sensitive preamplifier was designed on high resistivity, detector grade silicon. It is built at the surface of a fully depleted region of n-type silicon. This allows the preamplifier to be placed very close to a detector anode. The preamplifier uses the classical input cascode configuration with a capacitor and a high value resistor in the feedback loop. The output stage of the preamplifier can drive a load up to 20pF. The power dissipation of the preamplifier is 13mW. The amplifying elements are ''Single Sided Gate JFETs'' developed especially for this application. Preamplifiers connected to a low capacitance anode of a drift type detector should achieve a rise time of 20ns and have an equivalent noise charge (ENC), after a suitable shaping, of less than 50 electrons. This performance translates to a position resolution better than 3..mu..m for silicon drift detectors. 6 refs., 9 figs
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Electronics for Calorimeters at LHC
No full textSome principal design features of front-end electronics for calorimeters in experiments at the LHC will be highlighted. Some concerns arising in the transition from the research and development and design phase to the construction will be discussed. Future challenges will be indicated. (4 refs)
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Brookhaven National Laboratory Report BNL-7448
No full textThe solution time of analogue multipliers using field-effect transistors is investigated. This time is ultimately limited by the charging time of the field-effect transistor junction. In typical devices suitable for analogue multiplication the charging time is found to be about 10-20 nsec less than one percent. A four quadrant pulse amplitude multiplier circuit is described, whose solution time is equal to the field-effect transistor charging time
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CDC and PIN-CMOS Developments for Large Optical Telescope.
No full textHigher quantum efficiency in near-IR, narrower point spread function and higher readout speed than with conventional sensors have been receiving increased emphasis in the development of CCDs and silicon PIN-CMOS sensors for use in large optical telescopes. Some key aspects in the development of such devices are reviewed
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