A shaping amplifier for a high-resolution drift chamber with flash-ADC readout

doi:10.1016/0168-9002(90)90298-K

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 294, Issue 3, 15 September 1990, Pages 554-562

https://doi.org/10.1016/0168-9002(90)90298-K Get rights and content

Abstract

To fully exploit the spatial resolution capabilities of drift chambers operated at low drift velocities and readout by flash analog to digital converters, the use of shaping amplifiers becomes essential. The concept, the optimization study and results from tests of the shaping amplifier developed for the central tracking chamber of the L3 experiment at LEP are presented.

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Cited by (4)

Experience with the L3 vertex drift chamber at LEP
2003, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The vertex drift chamber of the L3 Experiment at LEP, based on the time expansion principle, was in operation from the start-up of LEP in 1989 until the shutdown of LEP in 2000. The gas mixture used was 80% CO₂ and 20% i-C₄H₁₀ at a pressure of $1200 mbar$ . We present the design of the chamber, the infrastructure and the performance during the 11 years of operation. The total radiation received on the anode wires was $∼10^{−4} C / cm$ . No degradation of the anode pulse amplitude, wire efficiencies and resolution was observed for the whole running period.
Analysis of pulse-type ionization detector signals as applied to count rate measurement methods
1995, Nuclear Inst. and Methods in Physics Research, A
Construction and performance of the L3 central tracking detector
1993, Nuclear Inst. and Methods in Physics Research, A
The L3 central tracking detector has been in operation since the start-up of LEP (Large Electron Positron collider) in 1989. This detector consists of a Time Expansion Chamber (TEC), a layer of Plastic Scintillating Fibers and a Z-chamber. The TEC gives a high spatial resolution and an excellent multi-track reconstruction capability. The fibers are designed to calibrate the drift velocity with high precision. The Z-Chamber provides TEC with accurate information about the z-coordinates of the tracks. A description of the design and the infrastructure of these three detectors, including the readout and data acquisition system, is given. The performance of the detectors during the 1990 and 1991 LEP running periods is presented.
The L3 vertex detector: design and performance
1992, Nuclear Inst. and Methods in Physics Research, A
The L3 vertex detector is comprised of the time expansion chamber (TEC), the Z-chamber and a layer of plastic scintillating fibers. The TEC has shown a high spatial resolution and an excellent multi-track reconstruction capability at LEP luminosity. The Z-chamber provides information about the z-coordinates of the tracks and the fibers are used for calibrating the drift velocity with a high precision. A description of the L3 vertex detector, its readout and data acquisition and its performance during the 1990 LEP running period is presented in this paper.

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

A shaping amplifier for a high-resolution drift chamber with flash-ADC readout

Abstract

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

The Time Expansion Chamber

Diss. ETH no. 8711

RWTH Aachen, PITHA 88-24

Experience with the L3 vertex drift chamber at LEP

Analysis of pulse-type ionization detector signals as applied to count rate measurement methods

Construction and performance of the L3 central tracking detector

The L3 vertex detector: design and performance