tipp2014 February 2014

tipp2014@nikhef.nl

28 participants
340 discussions

[Tipp2014] [Indico] New abstract submission: ZHAO, Chengxin
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to ZHAO, Chengxin: === Dear Chengxin Zhao, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/259/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: ZHAO, Chengxin Submitted on: 24 February 2014 19:19 Title: Performance of the ALICE PHOS Front-end Electronics in LHC RUN1 Abstract content The Photon Spectrometer (PHOS) is one of the sub-detectors of the ALICE experiment, which comprises three modules. Each PHOS module accommodates 112 Front-end Electronics (FEEs), which are divided into 4 readout partitions. Each FEE consists of 32 sets of high gain and low gain signal channels. In LHC RUN1, pedestal runs and LED runs dedicated to test the performance of the PHOS FEEs were performed. The evaluations are taken in the aspects of the pedestals, the peaking time of the shapers, and the gain ratios of the high gain channels to their corresponding low gain channels. In this paper, both their short-term and long-term performance will be covered. The PHOS event size, which is referred as the size of the data recorded by all the PHOS FEEs for single event, should be stable in all the physics runs of the same type. Hence, it could be used to monitor the noisy and dead channels in PHOS FEEs. The PHOS event size observed in Pb-Pb collisions, p-Pb collisions, p-p collisions and pedestal runs will be presented in this paper. In addition, the working status of the PHOS FEEs which the event size revealed will also be discussed. The performance demonstrates that the PHOS FEEs fulfilled the requirements of physics data reconstruction and was working as what we expected during the last four years. Summary Primary Authors: Mr. ZHAO, Chengxin (University of Oslo (NO)) <chengxin.zhao(a)fys.uio.no> Co-authors: Abstract presenters: Mr. ZHAO, Chengxin Track classification: Data-processing: 3a) Front-end Electronics Presentation type: --not specified-- Comments:

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[Tipp2014] [Indico] New abstract submission: AGATSUMA, Kazuhiro
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to AGATSUMA, Kazuhiro: === Dear Kazuhiro Agatsuma, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/258/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: AGATSUMA, Kazuhiro Submitted on: 24 February 2014 15:12 Title: Phase camera development for gravitational wave detectors Abstract content I will report a study of the phase camera, which is a wave-front sensor of laser. This sensor is utilized for observing phase-modulated laser in an interferometer of gravitational wave (GW) detectors. The GW detectors are well sophisticated apparatus that need accurate position controls for mirrors. The laser modulation/demodulation is used for readout of the mirror displacement in such accurate control. Laser sideband signals created by phase modulation become very important not only for the control but also sensitivity of detector because the quality of controls affect a noise level. We are preparing this phase camera for VIRGO, which is a GW detector placed in Pisa. The sideband signals in power recycling cavity are easily degraded by mirror aberrations in VIRGO. In order to correct such mirror aberrations, CO2 laser and compensation plates will be prepared, and then, our phase camera will be used to see mirror aberrations through the state of sidebands. Hence, this phase camera can contribute to VIRGO for making high performance controls. Summary Primary Authors: AGATSUMA, Kazuhiro (N) <agatsuma(a)nikhef.nl> Co-authors: , Jo Van Den Brand () <jo(a)nikhef.nl> VAN BEUZEKOM, Martin (Nikhef) <martinb(a)nikhef.nl> Abstract presenters: AGATSUMA, Kazuhiro Track classification: Emerging technologies: 4e) Precision engineering Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: LIDAN, Lv
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to LIDAN, Lv: === Dear Lv LiDan, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/257/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: LIDAN, Lv Submitted on: 24 February 2014 15:09 Title: A method for production and control activity concentration of thoron progenies in the thoron reference chamber Abstract content The long-term stability and homogeneity of activity concentration for thoron and its progenies are of great importance in a calibration facility,but this is difficult for a high stable activity concentration of thoron progenies due to longer life of 212Pb. In order to establish and maintain a high constant activity concentration of thoron progenies easily, the compensation system based on air circulation between a cylindrical chamber with 212Pb activity concentration over 10000 Bq.m-3 and the thoron reference chamber has been developed.The stable concentration of 212Pb in the cylindrical chamber depend on a constant solid 220Rn source and certain aerosol concentration level ranging from 1000 per cubic centimeter to 10000per cubic centimeter. Then dynamic balance of thoron progenies between the growth from the cylindrical chamber and the losses due to plate-out, decay and sampling in the thoron reference chamber has been established. A air flow of 20L•min-1 simulate sampling of calibrated instruments to eliminate concentration fluctuations caused by that in the thoron reference chamber. By this method 212Pb with wide various activity concentration ranging from 60 Bq•m-3 to 3000 Bq•m-3 are produced under different compensation and stimulation flow, and an overall uncertainty of less than 5% in the reference chamber. When concentration of thoron progenies changed from one level to another, it takes about ten hours to establishing new radioactive equilibrium. Summary Primary Authors: Prof. XIAO, Detao (University of South China) <13307478601(a)189.cn> Co-authors: Mr. HE, Zhengzhong (University of South China) <286573193(a)qq.com> Mr. QIU, Shoukang (University of South China) <hejia9zu(a)163.com> Abstract presenters: Prof. XIAO, Detao Track classification: Sensors: 1e) Novel technologies Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: OLAH, Laszlo
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to OLAH, Laszlo: === Dear Laszlo Olah, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/256/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: OLAH, Laszlo Submitted on: 24 February 2014 10:55 Title: A portable tracking detector for muon radiography experiments Abstract content \documentclass{article} \pagenumbering{gobble} \begin{document} \indent Cosmic muon radiography is a tool for examination of large scale objects via proper measurement of the absorption of the atmospheric muons. In this app\-li\-cation of particle physics detectors standard HEP techniques encounter new challenges.\\ \indent The REGARD group of Wigner RCP (Budapest) has deve\-lop\-ed a portable muon telescope for outdoor measurements with sensitive area of 0.1 m$^2$ and weight of 15 kg~\cite{1,2,3}. The designed detector is based on the novel Close Cathode Chambers~\cite{4,5} which provide a cheap, easy handling, lightweight, high efficiency detector system, able to work even at harsh conditions. The total power consumption of the complete detector system (with HV and DAQ modules including) is less than 5 W.\\ \indent The two dimensional angular distribution of atmospheric muons have been measured at ground and shallow depth underground (10-50 meters). The multiple scattering of muons in rock has been investigated experimentally and by GEANT4 simulations. The contamination of the track sample with soft component of cosmic radiation (electron and gamma) has been estimated. The applicability of the detector as a muon tomograph has been demonstrated via reconstruction of an existing underground tunnel system. \begin{thebibliography}{9} \bibitem{1} G. G. Barnaf\"oldi {\it et al.}: NIM A689 (2012) 60-69 \bibitem{2} L. Ol\'ah {\it et al.}: Geosci. Instrum. Method. Data Syst. (2012) 2 781-800 \bibitem{3} L. Ol\'ah {\it et al.}: Adv. in HEP (2013) 560192 1-7 \bibitem{4} D. Varga {\it et al.}: NIM A648 (2011) 163-167 \bibitem{5} D. Varga {\it et al.}: NIM A698 (2013) 11-18 \end{thebibliography} \end{document} Summary Primary Authors: OLAH, Laszlo (Eötvös Loránd University and Wigner RCP of the HAS) <laszlo.olah(a)cern.ch> HAMAR, Gergo (Wigner RCP of the HAS) <hamar.gergo(a)wigner.mta.hu> Dr. BARNAFOLDI, Gergely (Wigner RCP of the HAS) <barnafoldi.gergely(a)wigner.mta.hu> MELEGH, Hunor Gergely (Wigner RCP of the HAS) <melegh.hunor(a)wigner.mta.hu> Dr. SURÁNYI, Gergely (Geological, Geophysical and Space Science Research Group of the HAS) <surda007(a)gmail.com> Dr. VARGA, Dezso (Wigner RCP of the HAS) <varga.dezso(a)wigner.mta.hu> Co-authors: Abstract presenters: OLAH, Laszlo Track classification: Sensors: 1c) Gaseous Detectors Presentation type: Oral Comments:

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[Indico] New abstract submission: HERRERA MUÑOZ, Diana Carolina
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to HERRERA MUÑOZ, Diana Carolina: === Dear Diana Carolina Herrera Muñoz, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/255/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: HERRERA MUÑOZ, Diana Carolina Submitted on: 24 February 2014 10:30 Title: Study of Columnar Recombination in Xe+trymethilamine Mixtures using a Micromegas-TPC Abstract content Electron-ion recombination is experimentally studied in Xe+trimethylamine mixtures, motivated by its potential use for directional dark matter searches. A time projection chamber of 2.4 l with a novel configuration formed by two symmetric drift regions with two microbulk-Micromegas readouts is used to measure the recombination of $\alpha$- and $\gamma$-particles, which are emitted in coincidence by an $^{241}$Am source. A gas mixture of 98\%Xe+2\%TMA is used, varying the pressure from 2 to 10 bar, and the reduced drift field within 10-400 V/cm/bar range. Both $\alpha$- and $\gamma$-particles exhibit recombination as the electric drift field decreases, being stronger for $\alpha$- particles. This is partially explained by columnar recombination due to the dependency observed with the track angle (relative to the direction of electric drift field). The comparison of the data with the theoretical models for recombination will be shown and discussed. These results support a suggestion that has been recently put forward on how to obtain a directional signal in the recoils induced by Dark Matter interactions with xenon-gas. In fact, there are already efforts trying to pursue directionality but with very low masses. Summary Primary Authors: Ms. HERRERA MUÑOZ, Diana Carolina (Universidad de Zaragoza (ES)) <dcherreramu(a)gmail.com> Co-authors: GARCIA IRASTORZA, Igor (Universidad de Zaragoza (ES)) <igor.irastorza(a)cern.ch> GONZALEZ DIAZ, Diego (Universidad de Zaragoza (ES)) <diego.gonzalez.diaz(a)cern.ch> Mr. DAFNI, Theopisti (Universidad de Zaragoza (ES)) <theopisti.dafni(a)cern.ch> BASTOS DE OLIVEIRA, Carlos Alberto (Lawrence Berkeley National Lab, CA, USA) <cabdoliveira(a)lbl.gov> LONG, Megan (L) <mlong(a)lbl.gov> IGUAZ GUTIERREZ, Francisco Jose (Universidad de Zaragoza (ES)) <francisco.jose.iguaz.gutierrez(a)cern.ch> RENNER, Joshua (UC Berkeley / Lawrence Berkeley National Lab) <jrenner(a)lbl.gov> Dr. GOLDSCHMIDT, Azriel (UC Berkeley /Lawrence Berkely National Lab) <agoldschmidt(a)lbl.gov> Abstract presenters: Ms. HERRERA MUÑOZ, Diana Carolina Track classification: Sensors: 1c) Gaseous Detectors Sensors: 1e) Novel technologies Presentation type: Oral Comments: This work is the continuation of a previous experimental investigation performed with this mixture for double beta decay searches. The main conclusions are in the following contributions 1. D. C. Herrera et al., Micromegas-TPC operation at high pressure in Xenon-trimethylamine mixtures, JINST, 460 - 1742-6596, pp. 1 - 8. 2013. ISSN 1748-0221 Tipo de producción: Artículo 2. S. Cebrián et al., Micromegas-TPC operation at high pressure in xenon-trimethylamine mixtures, JINST, 8, pp. 0 - P01012 [17 pp]. 2013. ISSN 1748-0221

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[Tipp2014] [Indico] New abstract submission: LIPPMANN, Christian
by noreply-indico-team＠cern.ch 24 Feb '14

24 Feb '14

The following email has been sent to LIPPMANN, Christian: === Dear Christian Lippmann, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/254/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: LIPPMANN, Christian Submitted on: 24 February 2014 08:45 Title: Upgrade of the ALICE detector Abstract content A Large Ion Collider Experiment (ALICE) is the detector at the CERN Large Hadron Collider (LHC) dedicated to the study of strongly interacting matter, in particular the properties of the Quark-Gluon Plasma. The ALICE collaboration plans a major upgrade of the detector during the Long Shutdown 2 (LS2) of the LHC, which is at present foreseen to start in summer 2018. The upgrade strategy is based on collecting > 10 nb$^{-1}$ of Pb-Pb collisions at luminosities up to L = 6 x $10^{27}$ cm$^{-2}$s$^{-1}$ corresponding to a collision rate of 50 kHz, where each collision is shipped to the online systems, either upon a minimum bias trigger or in a self-triggered or continuous fashion. Since the TPC drift time of 100 $\mu$s is 5 times longer than the average time between interactions, the presently employed gating of the TPC wire chambers must be abandoned. Instead, continuously sensitive readout detectors based on Gas Electron Multipliers (GEMs) will be implemented. Furthermore, the present silicon tracker will be replaced by a new design entirely based on monolithic pixel chips in order to achieve significantly increased secondary vertex resolution and high tracking efficiency. Other ALICE sub-detectors are upgraded to read out Pb-Pb data at 50 kHz with nominal performance. Highly efficient triggering will be ensured by a new interaction trigger detector. A new online system will be implemented that is capable of receiving and processing the full detector information. We will present the planned ALICE upgrade concept together with a description of the individual detector upgrade plans. Summary Primary Authors: LIPPMANN, Christian (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) <christian.lippmann(a)cern.ch> Co-authors: Abstract presenters: LIPPMANN, Christian Track classification: Experiments: 2a) Experiments & Upgrades Presentation type: Oral Comments:

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[Tipp2014] [Indico] New abstract submission: PAOLOZZI, Lorenzo
by noreply-indico-team＠cern.ch 21 Feb '14

21 Feb '14

The following email has been sent to PAOLOZZI, Lorenzo: === Dear Lorenzo Paolozzi, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/253/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: PAOLOZZI, Lorenzo Submitted on: 21 February 2014 14:02 Title: New diamond detector structure and related front-end electronics for TOF application Abstract content The results obtained at BTF (Beam Test Facility) of Frascati with 500 MeV electrons working at single electron mode and with cosmic rays have shown a time resolution of the order of 100 ps with a polycrystalline diamond detector of 1.25 mm total thickness and a surface of 3x3 mm^2 operated at 350 V. To achieve this performance, a new structure of the diamond detector and a dedicated front-end electronics have been developed. The results obtained will be compared with standard mono and polycrystalline diamond detectors. This new structure of the detector together with the dedicated front-end electronics suggest the possibility to realize diamond detectors for MIPs with time resolution of the order of few tens ps. Summary Primary Authors: PAOLOZZI, Lorenzo (Universita e INFN Roma Tor Vergata (IT)) <lorenzo.paolozzi(a)cern.ch> CARDARELLI, Roberto (Universita e INFN Roma Tor Vergata (IT)) <roberto.cardarelli(a)roma2.infn.it> DI CIACCIO, Anna (Universita e INFN Roma Tor Vergata (IT)) <anna.di.ciaccio(a)cern.ch> Co-authors: Abstract presenters: PAOLOZZI, Lorenzo Track classification: Sensors: 1b) Semiconductor Detectors Presentation type: Oral Comments:

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[Tipp2014] TIPP2014: Acceptance of contribution
by tipp2014＠nikhef.nl 21 Feb '14

21 Feb '14

Dear Francisco Jose Iguaz Gutierrez, We are pleased to inform you that your contribution: Characterization of a Spherical Proportional Counter in argon-based mixtures has been accepted for an Oral presentation in the track Experiments: 2d) Dark Matter Detectors. We are looking forward to see you in Amsterdam, Niels van Bakel, On behalf of the track conveners and the local organizing committee

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[Tipp2014] [Indico] New abstract submission: Dr. OCHI, Atsuhiko
by noreply-indico-team＠cern.ch 21 Feb '14

21 Feb '14

The following email has been sent to Dr. OCHI, Atsuhiko: === Dear Atsuhiko Ochi, The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/252/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: Dr. OCHI, Atsuhiko Submitted on: 21 February 2014 06:21 Title: Carbon Sputtering Technology for MPGD detectors Abstract content Carbon sputtering is a promising technology for making resistive electrodes for MPGDs. The research on this technology started in the context of the development of MicroMEGAS detectors for the ATLAS muon system upgrade. By sputtering carbon layers of varying thickness (a few hundred to a few thousand angstrom) the surface resistivity can be controlled between $400$ kΩ/sq. and $2$ GΩ/sq. Several small ($10\times 10$ cm$^2$) and medium size foils ($50\times 100$ cm$^2$) have been produced and successfully tested. The next step is to produce foils of the final size of $2.2 \times 0.5$ m$^2$ required for the ATLAS MicroMEGAS. The carbon layer is deposited on thin ($50$ to $100$ µm) insulating foils (e.g., polyimide) by sputtering resulting in a good uniformity ($<30$%) of the resistivity. Extremely fine electrodes structures ($<50$ µm) can be achieved using the liftoff process technique. The foils produced so far are extremely robust with respect to mechanical and chemical d! amage. We report on the fabrication technique and the performance in operating detectors. Given the positive experience with MicroMEGAS detectors we also address other possible applications that could be interesting for MPGD detectors, e.g., Micro Pixel Chambers, GEMs, etc. Summary Primary Authors: Dr. OCHI, Atsuhiko (Kobe University (JP)) <atsuhiko.ochi(a)cern.ch> Co-authors: HOMMA, Yasuhiro (Kobe University (JP)) <yasuhirohomma3(a)gmail.com> YAMAZAKI, Yuji (Kobe University (JP)) <yamazaki(a)phys.sci.kobe-u.ac.jp> YAMANE, Fumiya (Kobe University (JP)) <fumiyamane(a)stu.kobe-u.ac.jp> TAKEMOTO, Tsuyoshi (Kobe University (JP)) <takemoto(a)stu.kobe-u.ac.jp> KAWAMOTO, Tatsuo (University of Tokyo (JP)) <tatsuo.kawamoto(a)cern.ch> KATAOKA, Yousuke (University of Tokyo (JP)) <yousuke.kataoka(a)cern.ch> MASUBUCHI, Tatsuya (University of Tokyo (JP)) <tatsuya.masubuchi(a)cern.ch> KAWANISHI, Yuki (University of Tokyo (JP)) <yuki.kawanishi(a)cern.ch> TERAO, Shingo (University of Tokyo (JP)) <shingo.terao(a)cern.ch> Abstract presenters: Dr. OCHI, Atsuhiko Track classification: Sensors: 1c) Gaseous Detectors Experiments: 2a) Experiments & Upgrades Presentation type: --not specified-- Comments:

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[Tipp2014] [Indico] New abstract submission: , Ali
by noreply-indico-team＠cern.ch 20 Feb '14

20 Feb '14

The following email has been sent to , Ali: === Dear ali , The submission of your abstract has been successfully processed. Abstract submitted: <https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts>. Status of your abstract: <https://indico.cern.ch/event/192695/call- for-abstracts/251/>. See below a detailed summary of your submitted abstract: Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics Submitted by: , Ali Submitted on: 20 February 2014 21:51 Title: Background optimization for a new spherical gas detector for very light WIMP detection Abstract content ![enter image description here][1] The Spherical gaseous detector (or Spherical Proportional Counter, SPC) is a novel type of particle detector, with a broad range of applications. Its main features include a very low capacitance, then a potential low energy threshold independent of the volume, a good energy resolution, robustness and a single detection readout channel. Applications range from radon emanation gas monitoring, neutron flux and gamma counting and spectroscopy to dark matter searches, in particular low mass WIMP's and coherent neutrino scattering measurement. Laboratories interested in these various applications share expertise within the NEWS (New Experiments With Sphere) network. SEDINE, a low background spherical detector installed at underground laboratory (LSM) is currently being operated and aims at measuring events at very low energy threshold, around 100 eV. We will present the energy calibration with $^{37}$Ar, the obtained energy resolution with different gas mixtures at different pressures, background reduction using pulse shape analysis, measurement of detector background and its interpretation, and show anticipated sensitivities for dark matter search with SEDINE. [1]: https://www.dropbox.com/s/gxy00di6f8jgns6/SEDINE.jpg Summary Primary Authors: Mr. DASTGHEIBI FARD, Ali (CNRS/IN2P3/LSM (FR)) <ali.dastgheibi-fard(a)lsm.in2p3.fr> Co-authors: Dr. GIOMATARIS, Ioannis (CEA/IRFU/SEDI (FR)) <ioanis.giomataris(a)cern.ch> Dr. GERBIER, Gilles (CEA/IRFU/SPP (FR)) <gilles.gerbier(a)cea.fr> Abstract presenters: Mr. DASTGHEIBI FARD, Ali Track classification: Experiments: 2d) Dark Matter Detectors Presentation type: Oral Comments: The main characteristics of a new concept of spherical gaseous detector, operation and preliminary results obtained with a low radioactivity detector installed at LSM will be presented

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tipp2014 February 2014