DeSangroValencia

Information about DeSangroValencia

Published on October 31, 2007

Author: Janelle

Source: authorstream.com

Content

INFN R&D on SiPM Applications to ILC Calorimetry:  INFN R&D on SiPM Applications to ILC Calorimetry Riccardo de Sangro INFN - Laboratori Nazionali di Frascati ILC-ECFA Workshop – Valencia 6th-10th November 2006 Outline:  Outline Overview of other INFN SiPM R&D activities (incomplete & quick!) Present Proposal Proponent Groups: Frascati, U. of Rome “La Sapienza” and INFN Rome Proposed Activities Other INFN Activities:  Other INFN Activities Present INFN R&D activity on SiPM is mainly dedicated to instrument-related technological developments (CSN-5) FACTOR, V. Bonvicini et al., (Trieste/Udine/Catania) - SiPM for readout scintillating-fibers, development of readout electronics. DASIPM2, G. Del Guerra et al., (Pisa, Bari, Bologna, Perugia, Trento) - medical applications (high resolution PET), space physics, HEP Good collaborative relations between INFN groups and the Italian producer of SiPM: ITC-IRST Other INFN Activities FACTOR:  Other INFN Activities FACTOR Characterization and tests of SiPM produced by IRST as a function of temperature Applications to DREAM calorimeter See Penzo’s talk Other INFN Activities DASIPM2:  Other INFN Activities DASIPM2 Development, production and test of SiPM samples Current developments are: Improve SiPM sensitivity to shorter wavelength region Formation of 2D matrices of SiPM, that could be used as the basis of an imaging system Final goals are: Realization of a high-resolution gamma camera for use in a next-generation Positron Emission Tomography (PET) system TOF (Time of Flight) in space physics Possible future applications to HEP SiPM for Calorimetry Open Issues :  SiPM for Calorimetry Open Issues High sensitivity of the gain to T and Vbias variations Calibration Uniformity and quality of mass productions (E.Garutti, CALOR2006) SiPM for Calorimetry Open Issues :  SiPM for Calorimetry Open Issues Present solutions (HCAL) use WLS fibers to match SiPM sensitivity range with scintillator light WL Find scintillators emmitting longer WL light Develop SiPM with higher sensitivity at lower WL Optimization of the coupling of the SiPM to scintillator tiles in terms of light collection efficiency P-ILC Calorimetry:  P-ILC Calorimetry Our Proposal: Study the application of SiPM to ILC calorimetry (and possibly m detection) Collaborate with already ongoing efforts 2 years R&D program, part INFN’s CSN1 P-ILC program coordinated by M. Caccia This activity has been approved and funded from INFN CSN-1 last September and will start in 2007 Proponent Groups:  Proponent Groups INFN – Laboratori Nazionali di Frascati A. Calcaterra(*), R. de Sangro, G. Finocchiaro, P. Patteri, M. Piccolo, M. Rama Present experiment Babar, built RPC m detector (IFR), presently working on data analysis Previously in SLD, built the WIC (hadron calorimeter and m identifier) with Limited Streamer Tubes. Recent work on RPC R&D applications for large area m detectors (ILC), funded by INFN CSN-5 Glass RPC; Mechanically quenched RPC People will contribute 30-40% of their time initially to this new effort Proponent Groups:  Proponent Groups University of Rome “La Sapienza” C. Bosio, S. Gentile(*), E. Kuznetsova (INFN & Rome Univ.) Present experiment ATLAS; previously in L3 with responsibility on physics analysis and calorimetric trigger, in AMS with the responsibility of the TRD control electronics, and in DELPHI hadronic calorimeter D. Caputo (Electronics Engineering Dept – Roma Univ.) G. Fortunato (Istituto Fotonica e Nanotecnologie del CNR, CNR) People will contribute 30-50% of their time initially to this new effort R&D Activities :  R&D Activities Comparative study of SiPM from different producers using a pulsed LED: Crosstalk; Dynamic Range; Dark Noise Study newer SiPM whith higher sensitivity to blue light Study SiPM-Scintillator mechanical and optical coupling with and without WLS fibre, optimize geometry for light yield R&D Activities :  R&D Activities Realization of small prototypes using various SiPM matched to tiles made with different scintillator types with and without WLS Measure charge spectra with cosmic rays as a function of T, Vbias Test different (SiPM + tile) prototypes at the Frascati Beam Test Facility to study: Gain and linearity Light collection efficiency Time resolution Using the BTF all these studies can be performed in a timely way as a function of the impact point on the scintillator tile and for different track crossing multiplicities Unique Facility! The Frascati Test Beam Facility:  The Frascati Test Beam Facility Particle Multiplicity The number of particle impinging on a detector can be tuned between 1 and 104 as well as the beam energy and size. New hardware allows running the BFT during normal DAFNE operations (>80-90% uptime) Good testing ground for different types of detectors (Calorimeters, RPC’s…) Further Possible Developments (2008):  Further Possible Developments (2008) Evaluate applications to m detector i.e., different sensitive element geometry R&D on SiPM front end and DAQ elettronics Conclusions:  Conclusions We are looking forward to come back with exciting results!

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