On-Board Digital Signal Processing for 4 $\pi$-Detector Large-Area Telescopes

Amorini, F.; Anzalone, A.; Cardella, G.; Cavallaro, S.; Filippo, E. De; Guazzoni, P.; Guidara, E. La; Lanzanó, G.; Pagano, A.; Pirrone, S.; Politi, G.; Porto, F.; Riccio, F.; Rizzo, F.; Russo, Simone; Russotto, P.; Zetta, L.

doi:10.1109/tns.2006.886594

Cited by 12 publications

(5 citation statements)

References 8 publications

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“…The SIS9300 card is hosted on an SIS3150 VME-board equipped with two ADSP-TS101S TigerSHARC digital signal processors (DSPs) and 64 MB SDRAM memory. The on-board intelligence allows performing waveforms zero-suppression and online event parameter reconstruction [13]. The collection of the event parameters by means of digital pulse shape acquisition allowed us to obtain more precise results than in conventional acquisition with a fully analog readout chain.…”

Section: B the Digital Data Acquisition Chain Of The Chimera Detectormentioning

confidence: 99%

“…Digital pulse shape acquisition [13] opens the possibility of transferring and storing the waveforms pertaining to each interaction in real-time beam experiments in order to perform further offlline analyses. A study of the CsI(Tl) scintillation characteristics in the case of heavy-ions interactions is presented in [14], although no account is taken of the dependence of the scintillation time constants and intensities on the particle energy.…”

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confidence: 99%

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Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Amorini

Boiano

Cardella

et al. 2012

IEEE Trans. Nucl. Sci.

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The dependence of the CsI(Tl) scintillation time constants and intensities on the particle ionization profile is at the basis of the Charge and Mass identification technique for Light Charged Products in Intermediate Energy Nuclear Physics multi-detector arrays. The possibility of storing the digitized waveforms in true beam experiments allows performing further offline analyses and makes available a data set related to the interaction of different particle types in a wide energy range.We propose the direct least-square fitting of the baseline subtracted output waveforms as a method for the determination of the four-vector defining the CsI(Tl) scintillator light output as a function of the particle energy, mass and charge. In the present work we investigate the dependence of the four-vector on the energy deposited in the CsI(Tl) crystal in the range 10 MeV-240 MeV for isotopes with and also for ions with -with no isotopic dependence-through the analysis of the waveform data set . This work was supported by INFN (Istituto Nazionale di Fisica Nucleare) in the framework of the EXOCHIM experiment and partly by the MIUR (Ministero dell'Universita' e della Ricerca Scientifica) program PRIN2009 "Studio e realizzazione del prototipo di un sistema di rivelazione ad alta risoluzione angolare per la misura con alta precisione dell'impulso di particelle leggere e di frammenti, da utilizzare per studi di dinamica e spettroscopia in reazioni nucleari con fasci stabili e radioattivi ad energie basse ed intermedie," protocol 2009RLCYL8.

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Section: B the Digital Data Acquisition Chain Of The Chimera Detectormentioning

confidence: 99%

mentioning

confidence: 99%

Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Amorini

Boiano

Cardella

et al. 2012

IEEE Trans. Nucl. Sci.

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“…The SIS9300 card is hosted on a SIS3150 VME-board equipped with two ADSP-TS 1 0 1 S TigerSHARC Digital Signal Processors (DSPs) and 64 MB SDRAM memory. The on-board intelligence allows performing waveforms zero-suppression and on-line event parameter reconstruction [9]. The use of Digital Pulse Shape Acquisition to collect the event parameters allowed us to obtain more precise results than in conventional acquisition with a full analogue readout chain.…”

Section: B the Digital Data Acquisition Chainmentioning

confidence: 99%

“…This is not possible in the case of heavy ions interaction, produced in multi-fragmentation experiments where data have to be acquired during beam-time. However, Digital Pulse Shape Acquisition [9] opens the possibility of transferring and storing the waveforms to perform further off-line analyses in real beam experiments. A study of the CsI(Tl) scintillation characteristics in the case of heavy-ions interaction is presented in [10], though in that work it is not taken into account the dependence of the scintillation time constants and intensities on the particle energy.…”

Section: Introductionmentioning

confidence: 99%

Determination of CsI(Tl) scintillation time constants and intensities by direct fitting of digitized waveforms in the CHIMERA 4π multidetector

Amorini

Boiano

Cardella

et al. 2011

2011 IEEE Nuclear Science Symposium Conference Record

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The design of modern multi-detector arrays for Intermediate Energy Nuclear Physics experiments has to face the problem of the improvement of the Charge and Mass Identification of Heavy and Light Charged Products. Most of the detector arrays developed for the identification of mass and atomic number of the emitted fragments, use detection units composed by thin silicon detectors and by thick scintillator crystals read-out by photodiodes. The light output of the CsI(TI) crystal can be modeled -at least in a given energy range -with a combination of two exponential functions with different time constants. The possibility of storing the digitized waveforms allows performing further off-line analyses. In the present work we determine -by direct least-square fitting of the base-line subtracted output waveforms -the four-vector defining the light output ('lj, '1;, hI' hs). In this way it is possible to provide an experimental determination of the scintillator parameters for aManuscript received November 10, 2011. This work was supported by INFN -Istituto Nazionale di Fisica Nucleare in the framework of the EXOCHIM experiment and partly by the MIUR (Ministero dell'Universita' e della Ricerca Scientifica) program PRIN2009 "Studio e realizzazione del prototipo di un sistema di rivelazione ad alta risoluzione angolare per la misura con alta precisione dell'impulso di particelle leggere e di frammenti, da utilizzare per studi di dinamica e spettroscopia in reazioni nucleari con fasci stabili e radioattivi ad energie basse ed intermedie ".A. Castoldi, C. Guazzoni and P. Zambon are with wide energy range and for different particle types. The proposed method has been applied to the waveforms acquired with the CHIMERA 41t detector array during runs at the INFN Laboratori Nazionali del Sud Superconducting Cyclotron in Catania, Italy with different beam/target pairs. In this paper we present the results obtained with a 21.5 MeV/u 2°N e beam bombarding a 12 C target.

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“…Both projects plan to be able to identify light particles and fragments over a wide range of kinetic energies and isotopic composition. The capabilities of these pulse -shape techniques will be enhanced by digitalization of signals in both Silicon and CsI(Tl) detectors [16,17]. The capabilities of these pulse -shape techniques will be enhanced by digitalization of signals in both Silicon and CsI(Tl) detectors [16,17].…”

Section: Future Perspectives In Heavy-ion Collision Studie Smentioning

confidence: 99%

Exploring dynamics and femtoscopy in nuclear reactions with exotic systems: status and future perspectives

Verde¹,

Penionzhkevich²,

Lukyanov³

2010

AIP Conference Proceedings

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A status of femtoscopy research in heavy -ion collisions (HIC) at intermediate energies is presented. Two-particle correlation functions provide information about dynamics of particle emission and probe the equation of state of asymmetric nuclear matter. Source size measurements two-proton and deuteron-alpha correlation functions allow to reveal the existence of a particle emission hierarchy in HIC. In the same reaction system, correlation techniques are also used to study sequential emissions of light particles by unbound states in 12 C and 10 C, showing that correlation techniques provide tools to explore the spectroscopy of unbound nuclei as well as the dynamics and space-time features of nuclear reactions. The perspectives offered by the future radioactive beam facilities as well as the new detector projects promise to increase the scientific reach of nuclear reaction dynamics.

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On-Board Digital Signal Processing for 4 $\pi$-Detector Large-Area Telescopes

Cited by 12 publications

References 8 publications

Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Determination of CsI(Tl) scintillation time constants and intensities by direct fitting of digitized waveforms in the CHIMERA 4π multidetector

Exploring dynamics and femtoscopy in nuclear reactions with exotic systems: status and future perspectives

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On-Board Digital Signal Processing for 4 $\pi$-Detector Large-Area Telescopes

Cited by 12 publications

References 8 publications

Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Investigation of the Dependence of CsI(Tl) Scintillation Time Constants and Intensities on Particle's Energy, Charge and Mass Through Direct Fitting of Digitized Waveforms

Determination of CsI(Tl) scintillation time constants and intensities by direct fitting of digitized waveforms in the CHIMERA 4&#x03C0; multidetector

Exploring dynamics and femtoscopy in nuclear reactions with exotic systems: status and future perspectives

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Determination of CsI(Tl) scintillation time constants and intensities by direct fitting of digitized waveforms in the CHIMERA 4π multidetector