A novel technique for fast pulse-shaping using a slow amplifier at LHC

Bingefors, N.; Bouvier, S.; Gadomski, S.; Hall, G.; Høgh, T.; Jałocha, P.; Lippe, H. vd.; Michel, J.; Nygård, E.; Raymond, M.; Rudge, A.; Sachdeva, R.; Weilhammer, P.; Yoshioka, K.

doi:10.1016/0168-9002(93)90340-n

Cited by 46 publications

(9 citation statements)

References 3 publications

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“…Fig. 7 shows the averaged deconvoluted output against signal injection time, which allows direct observation of the weighting function [13] of the filter. In comparison with the calculated cusp-like function the practical form of the weighting function has very little discontinuity at the peak and is almost gaussian in shape.…”

Section: Apv3 Laboratory Test Resultsmentioning

confidence: 99%

“…An impulse is recovered by forming a weighted sum of several samples from successive time intervals; the method is explained in ref. [13]. Three samples are used, and if a signal occurs at time interval n, the voltage samples S n-1 , S n and S n+1 are read from the pipeline when the chip is triggered (fig 2).…”

Section: Apv3 Architecture and Designmentioning

confidence: 99%

“…A switched capacitor filter, consisting of an amplifier and a switched capacitor network (fig 4), performs the deconvolution. The ratio of the capacitors C 1 : C 2 : C 3 is the same as the ratio of the weights required to deconvolute the signal w 1 : w 2 : w 3 [13] which for 25 ns sampling and 50 ns shaping time, requires weights of w 1 = 0.446, w 2 = -1.472, w 3 = 1.213. The APSP runs with four cycles of 1µs using a clock generated from the primary 40 MHz clock to the chip.…”

Section: Apv3 Architecture and Designmentioning

confidence: 99%

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Beam test of a prototype readout system for precision tracking detectors at LHC

Millmore

French

Gill

et al. 1996

Nuclear Instruments and Methods in Physics Research Section A:

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A prototype of a read-out system developed for high spatial precision tracking detectors at LHC has been tested in a beam at CERN. It is based on a radiation hard CMOS front end chip which includes signal amplification, storage in an analogue delay line and a deconvolution filter. Data were transferred from the front end chip using an analogue fibre optic link employing a novel reflective electro-optic modulator and continuous laser light source remote from the detector. This is the first time such a system has been used in an experimental environment and is the basis of the system proposed for the CMS experiment at LHC.

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Section: Apv3 Laboratory Test Resultsmentioning

confidence: 99%

Section: Apv3 Architecture and Designmentioning

confidence: 99%

Section: Apv3 Architecture and Designmentioning

confidence: 99%

See 1 more Smart Citation

Beam test of a prototype readout system for precision tracking detectors at LHC

Millmore

French

Gill

et al. 1996

Nuclear Instruments and Methods in Physics Research Section A:

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“…Pulse-shape analysis is described in the literature, and it has been widely adopted [3][4][5][6][7][8][9][10][11][12][13][14]. It usually consists in a rough estimation of two parameters (which are somehow related to the two main time constants of the impulse response}see, e.g.…”

Section: Introduction and Problem Statementmentioning

confidence: 99%

Detection and clustering of light charged particles via system‐identification techniques

Previdi

Savaresi

Guazzoni

et al. 2006

Adaptive Control & Signal

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The problem considered in this work is the classification of the particles produced by the collision of a heavy ion beam on a target. Each particle is captured by a detector and results in a signal (which is the impulse response of a dynamic linear system), which is measured by a digital acquisition system. The assumption made herein is that the shape of the impulse-response contains complete information on the particle, and the classification can be done by pulse-shape, analysis.In this work, a complete procedure for the particle identification is proposed. The main idea is to use the cascade of a state-space identification algorithm and a parametric non-linear map using the model parameters as input regressors. The algorithm has been tested on a large set of impulse-responses and provides a fully automatic accurate classification of the isotopes.This work focuses on isotopic identification of the most energetic light charged particles (LCP). All the experiments are made with the large detector array CHIMERA (Charge Heavy Ions Mass and Energy Resolving Array).

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“…This is being carried out by systematic studies of the radiation hardness of detectors by production of a wide range of prototypes with several manufacturers. They are being evaluated in conjunction with a fast, low noise front end amplifier, analogue pipeline and a novel signal processing scheme developed specifically for LHC [3,4]. Both p-side and n-side microstrips and test devices, fabricated on n-type silicon, have been exposed to irradiation by neutrons, protons, photons and electrons.…”

Section: Introductionmentioning

confidence: 99%

Detector radiation damage studies for a silicon microstrip tracker at LHC

Hall

1994

IEEE Trans. Nucl. Sci.

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The RD20 collaboration is undertaking systematic studies of the radiation hardness of prototype detectors in order to construct silicon microstrip tracking detectors at the LHC. Results from irradiations on pside and n-side strips, both fabricated on n-type silicon are presented. ResultsThe principal conclusions from the work to date are summarised below [ 1,2,7,12,131.Leakage currents have been measured with neutrons, protans and gammas and are known to be proportional to par&le fluence, with volume current density = damage consraq x fluence. The neutron damage constant is well established fmm our own work and others [7-111 to be -7~1 0 -l~ A.cm-l for

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A novel technique for fast pulse-shaping using a slow amplifier at LHC

Cited by 46 publications

References 3 publications

Beam test of a prototype readout system for precision tracking detectors at LHC

Beam test of a prototype readout system for precision tracking detectors at LHC

Detection and clustering of light charged particles via system‐identification techniques

Detector radiation damage studies for a silicon microstrip tracker at LHC

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