1 / 8

Collaborative Efforts in Nuclear Physics: R3B/EXL/ELISe Meeting Overview

This document outlines the proceedings from the R3B/EXL/ELISe Joint Collaboration meeting held in Gothenburg, Sweden from October 13 to 16, 2008. Key discussions included plans for gamma tests, proposal status for several projects, and the scheduling of beam time for experiments related to photon and electron tagging. The status of various proposals and beam characteristics from multiple institutions, including Lund University, Uppsala, and Groningen, were reviewed, emphasizing collaborative research in nuclear physics and the need for future simulations.

dunne
Télécharger la présentation

Collaborative Efforts in Nuclear Physics: R3B/EXL/ELISe Meeting Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CALIFA beam time proposals for 2009 Pavel Golubev, Lund University R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden and Calorimeter Working Group R3B (Gothenburg, Lund, Madrid, Orsay, Santiago) Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden J.A. Briz, M. Carmona-Gallardo and Olof Tengblad

  2. Madrid: CMAM, Nuclear Physics Line. Gammas 0.11 - 6.129 MeV. 50 €/h. Proposal needed. Status: Meeting held. Scheduling 6 weeks earlier. Darmstadt: S-DANILAC, NEPTUN. Tagged photons and electorns. Eg <25 MeV Status: Pre-proposal accepted-March 09 suggested. Uppsala: TSL . Protons Ep =180 and 90 MeV. Status: Proposal accepted – May 09 suggested. Groningen: KVI. Protons 45 and 150 MeV. Status: No CWG activity foreseen. In-beam test measuements Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  3. Gamma tests possibilities at NEPTUN@S-DALINAC (I) magnet 1 m coincidence focal plane radiator experiment photons electrons Photon energy: Eg = Ei - Ee Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  4. Gamma tests possibilities at NEPTUN@S-DALINAC (II) • Photon beam: • Almost continues (3GHz, 10MHz), electron beam 1 mm in diam. • Energy range: 0 MeV < E < 28 MeV, higher energies are possible (recirculation possibility of the S-DALINAC) but no plans to do it now. • Energy resolution: E = 35-40 keV @ 10 MeV (FWHM) • Photon intensity: from nearly 0 up to 104 keV-1s-1 • Beam diameter: 240 mm • Beam halo: no sufficient halo noticed in measurements • Tagger: • Two scintillator planes, 128 channels • Scintillator fibre: 1 x 1 x 40 mm • Equipped with MultiHit TDC • Energy window: 3 MeV - design goal (with resolution 25keV); currently energy window: 250 keV • EDAQ: • VME, space left to integrate additional modules • Locally available: ADC: 32 ch., TDC: 32 (+32) ch., QDC: 16 ch • User friendly interface (ROOT) Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  5. Gamma tests possibilities at NEPTUN@S-DALINAC (III) Recent data from test experiment Tagged photon production HPGe Detektor e- E Magnet DE SE PP Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  6. Gamma tests possibilities at NEPTUN@S-DALINAC (IV) WG for Demonstrator tests at TUD @NEPTUN : Pavel Golubev, Deniz Savran, Olof Tengblad , Hector Alvarec, Jean Antoine Scarpaci, Nobert Pietralla, … • Demostrator irradiation time(due to Temp & HV cannot exceed 20 min.): • tagging efficiency 210-4 per one fiber @10 MeV • 30 abs. Photopeak efficiency for CsI • Total counting rate in CsI 1kHz • To get 100 events in the full energy peak: • T = 100(events) / (1000 Hz *0.3% * 210-4 ) =1700 sec. • Simulations are needed • 2. Changing photon energy: • Change electorn beam energy (1 min.) • Adjust tagged photon energy by changing the magnetic field of the tagger (used in in-beam tests with HPGe detector measurements. Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  7. Gamma tests possibilities at NEPTUN@S-DALINAC (V) • 4. DAQ: readout of additional modules at NEPTUN • Temperature and HV sencors  write data on file • FADCs CAEN V1724: 8ch, 14 bit, 100 MS/secFADC M2J MATACQ32(CAEN V1729): 4ch, 12 bit, 2GS/sec, 300MHz bandwidhtFADC • 3. FP multiplicity • According to last mesurement @NEPTUN it is close to 1 Pavel Golubev, Lund University, R3B/EXL/ELISe Joint Collaboration meeting October 13-16, 2008, Gothenburg, Sweden

  8. Tests possibilities at TSL Name of facility: The Svedberg Laboratory, Uppsala, Sweden. Contact Person: Alexander Prokofiev: alexander.prokofiev@tsl.uu.se Usual dates of 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. 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

More Related