Performance of the ALTRO chip on data acquired on an ALICE TPC prototype

Mota, Bernardo; Bächler, J.; Bramm, R.; Campagnolo, R.; Bosch, Raúl Esteve; Parga, A Jiménez de; Musa, L.

doi:10.1016/j.nima.2004.07.179

Cited by 14 publications

(11 citation statements)

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“…It is then delivered on the detector impedance which, to a very good approximation, is a pure capacitance of the order of a few pF. The shape of the signal tail, which is due to the motion of the positive ions, is rather complex and depends on the details of the chamber and pad geometry [16,17]. This tail, causing pile-up effects, sets the main limitation to the maximum track density at which a MWPC can be operated.…”

Section: General Specificationsmentioning

confidence: 99%

“…The signal from a gas detector with a MWPC readout is often characterized by a long tail with a rather complex shape. Detailed simulations can be found in [17,65].…”

Section: Tail-cancellation Filter Parameter Extractionmentioning

confidence: 99%

“…While the first is implemented by a self-calibration circuit based on a first order infinite impulse response filter, the latter is achieved by subtracting a pattern stored in a 10-bit wide 1k deep Pedestal MEMory (PMEM). The next processing block, the Tail Cancellation Filter, which is based on a third order infinite impulse response filter, is able to suppress the tail of the pulses within 1 µs after the peak, with an accuracy of 1 LSB [16]. Since the filter coefficients for each channel are fully programmable, the circuit is able to cancel a wide range of signal tail shapes.…”

Section: Pasamentioning

confidence: 99%

“…6 are shown in Tab. 16. The fit was done separately in the z (drift) and the rϕ directions, denoted further as z and y accordingly.…”

Section: Momentum Resolutionmentioning

confidence: 99%

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The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

Alme

Andres

Appelshäuser

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

530

284

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The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in shape with a volume close to 90 m 3 and is operated in a 0.5 T solenoidal magnetic field parallel to its axis.In this paper we describe in detail the design considerations for this detector for operation in the extreme multiplicity environment of central Pb-Pb collisions at LHC energy. The implementation of the resulting requirements into hardware (field cage, readout chambers, electronics), infrastructure (gas and cooling system, laser-calibration system), and software led to many technical innovations which are described along with a presentation of all the major components of the detector, as currently realized. We also report on the performance achieved after completion of the first round of stand-alone calibration runs and demonstrate results close to those specified in the TPC Technical Design Report.

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Section: General Specificationsmentioning

confidence: 99%

“…The signal from a gas detector with a MWPC readout is often characterized by a long tail with a rather complex shape. Detailed simulations can be found in [17,65].…”

Section: Tail-cancellation Filter Parameter Extractionmentioning

confidence: 99%

Section: Pasamentioning

confidence: 99%

“…6 are shown in Tab. 16. The fit was done separately in the z (drift) and the rϕ directions, denoted further as z and y accordingly.…”

Section: Momentum Resolutionmentioning

confidence: 99%

See 2 more Smart Citations

The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

Alme

Andres

Appelshäuser

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

530

284

View full text Add to dashboard Cite

show abstract

“…The performance of the baseline correction algorithm is shown in the right panel. In the Technical Design Report (TDR) of the TPC, it was assumed that the current front-end electronics will have a set of online signal processing algorithms (Moving Average Filter (MAF)) to correct for this baseline shift on the hardware level [14]. However, this functionality was not enabled due to instabilities in the firmware.…”

Section: Simulationsmentioning

confidence: 99%

Track Reconstruction in a High-Density Environment with ALICE

Arslandok,

Hellbär,

Ivanov

et al. 2022

Preprint

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Advances in nuclear detection and readout techniques

He,

Niu,

Wang

et al. 2023

NUCL SCI TECH

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Abstract“A Craftsman Must Sharpen His Tools to Do His Job,” said Confucius. Nuclear detection and readout techniques are the foundation of particle physics, nuclear physics, and particle astrophysics to reveal the nature of the universe. Also, they are being increasingly used in other disciplines like nuclear power generation, life sciences, environmental sciences, medical sciences, etc. The article reviews the short history, recent development, and trend of nuclear detection and readout techniques, covering Semiconductor Detector, Gaseous Detector, Scintillation Detector, Cherenkov Detector, Transition Radiation Detector, and Readout Techniques. By explaining the principle and using examples, we hope to help the interested reader underst and this research field and bring exciting information to the community.

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Performance of the ALTRO chip on data acquired on an ALICE TPC prototype

Cited by 14 publications

References 1 publication

The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events

Track Reconstruction in a High-Density Environment with ALICE

Advances in nuclear detection and readout techniques

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