Super Separator Spectrometer Status Report 27th of September 2013 Super Separator Spectrometer Status Report Scientific Committee of GANIL INP
Infrastructure and safety Progress in Magnet design and construction Experimental set-ups: SIRIUS, implantation-decay station REGLIS3, Low Energy Branch FISIC, collider for atomic physics Tasks & Planning Organisation & Operation
Infrastructure & Safety Spiral2 Perimeter Extension To cover S3 infrastructure : CoDir in Oct. Room under construction ready for beginning of 2014 Call for tender for Cold Box in progress Call for tender of cryogenic line in Progress (IPN Orsay) Delivery in Oct 2014 Fluids and power routing under definition call for tender end 2013/beg. 2014 Safety (Dossier de Mise en Service) Beam dump, X-ray hazard & room Architecture documented for DMES In a further step: Actinide targets lasers
Magnets 3 × Dipoles Open triplet : 7 × SC multipoles Electric Dipole Delivered: March 2013 Open triplet : Under construction By Sigmaphi Kick-off meeting On July the 3rd 7 × SC multipoles Electric Dipole Under design phase Design validated Prototype construction started in March
Implantation-decay station ANR Grant Requests Detection Set-up SIRIUS (Irfu, Ganil, CSNSM, IPHC) : Refused, resubmitted in Oct. Tracker detectors Test with MWPC and micromegas technology Position resolution : 0.7mm FWHM Time resolution : 300ps FWHM Very thin emissive foils built : 0.15µ High-dynamics Front-End electronics Floating point CSA Asic Digital Feedback CSA Both ready for test with a detector Back-end electronics - S3 as an option in NUMEXO2 order Silicon Detectors - Ceramics prototype for the Si box - Detector produced - Resolution with Jordanov 16keV (FWHM)
(mr-TOF-ms, laser system infrastructure, safety, RFQs) Low Energy Branch n x 3 x 2 75 W, 10 kHz Nd:YAG Pump laser - Ti:Sa 3 Ti:Sa 2 Ti:Sa 1 LEUVEN (from IGLIS) GANIL (from GISELE) (Gas cell) (RFQs) (Gas cell, laser system) (mr-TOF-ms, laser system infrastructure, safety, RFQs) Collaboration <10-8 mbar Pulsed drift tube Isobaric purification (A) Mr-TOF-ms 4keV beam Isotopic selection (Z) <=10kV beam + +©◊ Gas cell S-shaped RFQ Extraction S3 beam entrance window Laser beam (in-gas-jet mode) DC repulsion tension Exit hole with de Laval nozzle Laser beam (in-gas-cell mode) QMS 500 mbar High pressure zone (10-2 bar) Low pressure zone (10-3-4 bar) Thermalization Neutralization Gas jet IN Quad deflector RFQ buncher Decay station Pulsed drift tube HT + + + + + + + + + + + + + + + + + + + + + + + + + + + + + HT=5-10kV HT HT=40-60kV Low energy branch REGLIS3 (Ganil, LPC, IPNO, KU Leuven) : ANR Accepted, 784k€ DESIR
FISIC : a collider for Atomic Physics Achievements : Thermal simulation of stripper targets under high intensity beams to optimize resistance Test of a next generation Faraday cup with beam imaging october High energy beam Charge exchange Low energy beam International ANR Grant Request (741k€ requested) Fit-FISIC (INSP, Jena Univ., GSI, CIMAP) : Ranked 1st on ANR-SIM4, Results in Oct
Tasks & Planning Last work packages of S3 (Vacuum, Interlocks, Automats, supervision…) Assessment of Resources and skills required with Ganil Tighter coordination between S3 and Ganil/Spiral2 To be integrated to Ganil and other partners workloads Development Plan
2 3 1 Organisation & Operation Letters of Intent GANIL Management GANIL SC Campaign setting GANIL PAC Beam time allocation 2 3 Letters of Intent S3 user collaboration board S3 management board S3 User collaboration Physicist Community (Proposal for experiments) 1 Campaign convener physicist S3 Collaboration support : Physicists Spectrometer experts Detection experts DAQ Software GANIL support : Host physicist & Technical coordinator - Target expert - Spectrometer/optics experts - Detection expert - DAQ Software Specific support will also be provided depending on the Campaign setting
Thank you For your Attention S3 Collaboration (LoI signed by 28 laboratoires) ANL (US), CENBG, CSNSM, JINR-FLNR, (Russia), GANIL, France, GSI (Germany), INFN Legnaro, (Italy), IPHC, France, IPNL, , Irfu CEA Saclay, IPNO, France, JYFL (Finland), K.U. Leuven (Belgium), Liverpool-U, (UK), LNS (Italy), LPSC, MSU (US), LMU, (Germany), Nanjing-U (China), Northern Illinois University (US), SAS Bratislava, (Slovaquia), IFJ PAN Cracow (Poland), Smoluchowski Institute (Poland), CEA-DAM; SUBATECH, TAMU (US), U. Mainz (Germany), York-U (UK), Vinca Institute (Serbia) INP
Operational modes and Performances Reference reaction : 58Ni + 46Ti 100Sn + 4n σ(E) = 1.7% σ(θ) = 20mrad High Resolution mode High transmission mode (target closer)
Optical modes and Performances Reference reaction : 58Ni + 46Ti 100Sn + 4n σ(E) = 1.7% σ(θ) = 20mrad Converging mode for Gas Catcher Cancelled dispersion φ=5cm
Implantation-decay station (α, p, e-,γ spectroscopy) S ~ 900 channels Germanium detector e.x. Exogam2, CLODETTE COPPER SUPPORT TUNNEL DETECTOR INSULATOR Veto + IMPLANTATION DETECTOR Time of flight + ion tracking detector Implantation detector (HI, and e- decay) Large size (200x150 mm2) Time Resolution < 1ns Position resolution = 1mm Very low thickness Tunnel detector for escaped e- and Large detector size High resolution FWHM Ability to detect large> 50MeV pulse (≈ 10µs) followed by a weak<15MeV pulse. No Dead time Large size 100x100 mm2 Conversion electrons FWHM <5 keV Escaped alpha FWHM 15 keV Front-end electronic (large & high resolution PA) Back-end electronic & DAQ (triggerless, digital processing)
Expected performances Low Energy Branch Gas cell chamber 10-2 mbar (LEUVEN, GANIL, IPNO, LPC…) électrode extraction HRS RFQ 90o RFQ extraction Identification Station 500 mbar DESIR Cellule gazeuse Faisceau laser 10-5 mbar S3 Pure Beam Expected performances HRS or MRTOF Thermalization, diffusion and transport towards the exit hole 90 % Neutralization in to the atomic in GS 30 % Formation of the gas jet Laser ionization 50 % Capturing efficiency 80 % Detection efficiency 85 % Total efficiency 4 % cocktail beam
Beam Dump Open magnets quadrupole + sextupole Stopping 99.9% of the primary beam charge states Upstream Beam dump Conception Ganil/SACM With IFJ PAN Cracow Downstream Beam Dump ~100 mm Active areas (>1mSv/h) can be fully shielded by lead protection ( <25µSv/h)