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A feature-extractio...
A feature-extraction and pile-up reconstruction algorithm for the forward-spectrometer EMC of the PANDA experiment
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- Preston, Markus (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Bukreeva, S. (author)
- Inst High Energy Phys, Protvino 142281, Moscow Region, Russia.
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- Diehl, S. (author)
- Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany.
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- Marciniewski, Pawel (author)
- Uppsala universitet,Kärnfysik
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- Novotny, R. W. (author)
- Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany.
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- Ryzhikov, S. (author)
- Inst High Energy Phys, Protvino 142281, Moscow Region, Russia.
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- Semenov, P. A. (author)
- Inst High Energy Phys, Protvino 142281, Moscow Region, Russia.
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- Tegnér, Per-Erik (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- English.
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In: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier. - 0168-9002 .- 1872-9576. ; 1011
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Abstract
Subject headings
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- A digital algorithm for real-time feature extraction, i.e. determination of pulse amplitude and timing, has been developed for the forward-spectrometer electromagnetic calorimeter in the PANDA experiment. The algorithm, which is based on the well known optimal-filter algorithm, has been designed to allow reconstruction of pile-up signals in real time and to work in a free-running DAQ system such as PANDA. To benchmark the algorithm, a Geant4-based Monte Carlo model of photon interactions in the calorimeter has been developed to generate realistic detector signals which were used as inputs to a VHDL simulation of the algorithm. The results of this simulation study show that the developed algorithm improves the time resolution by almost 50% compared to a conventional linear constant fraction discriminator algorithm. For the PANDA calorimeter, this results in a time root resolution close to 100 ps/ GeV per detector element at high energies. The algorithm allows reconstruction of the amplitude and timing of pile-up pulses separated by as little as 30 ns with good efficiency, fulfilling the PANDA requirements.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Electromagnetic calorimeter
- Sampling ADC
- Optimal filter
- Feature extraction
- Pile-up reconstruction
- FPGA
Publication and Content Type
- ref (subject category)
- art (subject category)
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