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2/26/2008 To : Teknisk-Naturvetenskapliga fakulteten Uppsala universitet

Name of facility: The Svedberg Laboratory, Uppsala, Sweden. Contact Person: Alexander Prokofiev (EXL). alexander.prokofiev@tsl.uu.se Usual dates of PAC meeting (Next PAC meeting): Deadline for proposals, Jan. 15, Mar. 15, Jul. 15 and Oct. 15.

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2/26/2008 To : Teknisk-Naturvetenskapliga fakulteten Uppsala universitet

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  1. Name of facility: The Svedberg Laboratory, Uppsala, Sweden. Contact Person: Alexander Prokofiev (EXL). alexander.prokofiev@tsl.uu.se Usual dates of PAC meeting (Next PAC meeting): Deadline for proposals, Jan. 15, Mar. 15, Jul. 15 and Oct. 15. Average time between proposal submission and experiment schedule: Scheduled period 3 – 9 months after proposal deadlines. Characteristics of proton beam: 180 MeV, 103s-1 uniformly over one cm2 (line B). <180 MeV beams need development. Difficulties in scheduling due to main activity in proton therapy at 180 MeV. Characteristics of gamma beam: - DAQ support: No local DAQ available. Optical cable between experimental hall and counting room. Local support: Electronics pool, mechanical and electronics workshops. Others: LU (EXL/R3B) has performed one test in line B. Cost of beam time: 400€/h. 2/26/2008 To : Teknisk-Naturvetenskapliga fakulteten Uppsala universitet Dekanus, Prof. Jan-Otto Carlsson Box 256 SE-751 05 UPPSALA From: FAIR/NuSTAR R3B and EXL collaborations and FAIR/NuSTAR Calorimeter Working Group (CWG) Re: Beamtime for CWGat the TSL facility 2008-06-17 We are in pending state with possible beamtime in October/December 2008 or at Spring 2009. Now to be discussed within the Technical Boards (R3B, EXL?) Followed by a letter of support from SFAIR

  2. + THE SVEDBERG LABORATORY + Beam time request +Submission date: 071015____ Experiment code (approved project): FA192_____Title of experiment: Testing the EXL/R3B calorimeters Type of experiment: Commercial (directly paying) project (Yes/No) ___Research project at Uppsala University (Yes/No) Yes____Spokesperson for the collaboration: Bo JakobssonCurt Ekström,Alexander ProkofievTSL/UUP. Golubev, B. Jakobsson, V AvdeichikovLU Tom Auman and the R3B CollaborationFAIR/GSI Marielle Chartier and the EXL CollaboratioNo. of shifts left (estimate): _______ No. of shifts requested: 12_______ • Beam ions Energy/nucleon Beam intensity Target Number of shifts • H+ ____180, 90 MeV _ 1 nA ______exp ____ 6 + 6 _______ • Can (should) the beam-time be split .... No splitting within beam energies 2) Lower limit of time that you can accept 6 shifts (one energy)Times or time intervals for runs (months, weeks, weekdays ,...)4) Time for preparation (and removal) Beamline five days (one day), table for detector mountingCounting room five days (one day), optical cable to target area5)technical support is requested from TSL - electronics: pool electronics – expertpersonnel: beamline "coordinator" - other: access to mech. workshop6) Compatibility with other experiments -sharing with teraphy for 180 MeV7) Is the situation clear for equipment and personnel (from outside TSL) Yes8) Other boundary conditions or requests - 180 MeV proton beam in line B as in previous runShort summary describing the experiment and its status:We construct the target recoil detector system for the R3B/EXL programsat FAIR/GSI......................For an initial beam-time request, please attach a description and justification

  3. Tentative set-up for TSL in-beam test

  4. Data from in-beam tests – 180 MeV protons 20*20(23*23)*100 mm3 CsI(Tl) Irradiating the central detector with the low-flux TSL proton beam with Φ = 5 mm shows the beam peak and the background from inelastic + multiple scattering. ΔE/E 0.4 – 0.6% is obtained for all 9 detectors premature cluster DSSD 2*2 mm2 pixel PD readout CsI(Tl), 20x20(23x23)x100 mm**3 GEANT4* *) KTH Stockholm, B. Cederwall, S. Tashenov

  5. Data from in-beam tests – 180 MeV protons High energy protons (180 MeV) V. Avdeichikov et al GSI Ann. Report 2007

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