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Dear Alain Delbart,
The submission of your abstract has been successfully processed.
Abstract submitted: https://indico.cern.ch/userAbstracts.py?confId=192695.
Status of your abstract: https://indico.cern.ch/abstractDisplay.py?abstractId=130&confId=192695.
See below a detailed summary of your submitted abstract:
Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics
Submitted by: DELBART, Alain
Submitted on: 31 January 2014 09:33
Title: The MINOS micromegas-TPC vertex tracker for in-beam spectroscopy of very exotic nuclei
Abstract content CEA-Irfu developed a new device, called MINOS (MagIc Numbers Off Stability), to improve both the luminosity and the sensitivity of proton-induced knockout reactions experiments performing in-beam spectroscopy of very exotic nuclei produced at fragmentation facilities (such as RIBF at RIKEN in Japan and FAIR in Germany). Its innovative approach is that it uses a compact annular 300 mm long Time Projection Chamber (TPC) surrounding a thick cylindrical liquid hydrogen target. The TPC reconstructs the recoiled proton tracks in order to locate the interaction vertex inside the target, allowing a proper Doppler correction to emitted gamma rays measured in a dedicated detector. A bulk-micromegas, segmented in 4608x2 mm2 pads, is used to readout the TPC which is filled with an Argon-iC4H10(3%)-CF4(15%) gas mixture. The electronics is composed of 20 analog front-end cards. Each of these is read out by a newly designed digital board, called the Feminos, which is compatible with the AFTER and AGET chips. The internal and external TPC field cages are made of 2 mm thick Rohacell cylinders on which are glued 50 microns thick Kapton foils printed with 381 copper strips. The MINOS device will be described, with a focus on the design choices and performances of the TPC characterized in laboratory with cosmic rays. We will report on the recent full in-beam validation of the TPC at HIMAC (Japan) where a better than 4 mm vertex resolution was obtained with a 180 and 350 Mev/u 20Ne ion-beam impinging on 0.5 mm thick CH2 and C targets.
Summary
Primary Authors: Dr. DELBART, Alain (CEA/Irfu, CE Saclay, 91191 Gif sur Yvette cedex, France) alain.delbart@cea.fr
Co-authors: Dr. OBERTELLI, Alexandre (CEA/Irfu, CE Saclay, 91191 Gif sur Yvette, France) alexandre.obertelli@cea.fr
Abstract presenters: Dr. DELBART, Alain
Track classification: Sensors: 1c) Gaseous Detectors
Presentation type: --not specified--
Comments: The complete list of authors is The MINOS Collaboration : A. Obertelli,_1,_6 N. Aoi,_5 S. Anvar,_1 L. Audirac,_1 G. Authelet,_1 H. Baba,_6 D. Beaumel,_4,_6 S. Boissinot,_1 B. Bruyneel,_1 D.Calvet,_1 F. Chateau,_1 A. Corsi,_1 A. Delbart,_1 P. Doornenbal,_6 J-M. Gheller,_1 A. Giganon,_1 A. Gillibert,_1 Y. Kondo,_6,_7 Y. Kubota,_2 C. Lahonde-Hamdoun,_1 V. Lapoux,_1 D. Leboeuf,_1 J. Lee,_6 C.S. Lee,_2 D. Loiseau,_1 M. Matsushita,_2 A. Mohamed,_1 J.-Ph. Mols,_1 T. Motobayashi,_6 T. Nakamura,_6,_7 M. Kurata-Nishimura,_6 S. Ota,_2 H. Otsu,_6 C. Peron,_1 A. Peyaud,_1 E.C. Pollacco,_1 G. Prono,_1 J-Y. Rousse,_1 H. Sakurai,_6 C. Santamaria,_1,_6 M. Sasano,_6 E. Takada,_3 H. Tokyeda,_2 T. Uesaka,_6 K. Yoneda,_6 and J. Zenihiro,_6 _1 CEA Saclay _2 CNS, The University of Tokyo _3 NIRS-HIMAC _4 IPN Orsay _5 RCNP, Osaka University _6 RIKEN Nishina Center _7 Tokyo Insitute of Technology