Bulletin of the American Physical Society
83rd Annual Meeting of the APS Southeastern Section
Volume 61, Number 19
Thursday–Saturday, November 10–12, 2016; Charlottesville, Virginia
Session J2: Technologies in Particle Physics and Astronomy |
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Chair: Bob Hirosky, University of Virginia Room: Salon C |
Friday, November 11, 2016 3:45PM - 4:15PM |
J2.00001: New Trends in Micro Pattern Gaseous Detectors (MPGDs) Invited Speaker: Kondo Gnanvo With the advances in photolithography and micro processing in the past few decades, Micro Pattern Gaseous Detectors (MPGDs) are replacing the old generation Multi Wire Proportional Chambers (MWPCs) to play a pivotal role for low mass and high precision tracking system in large particle physics and nuclear physics (NP) experiments. Well established MPGD technologies such as Gas Electron Multiplier (GEMs) and Micro Mesh Gaseous (Micromegas) based trackers are being used in various current and future experiments. An active R{\&}D is ongoing with the emergence of new structures to improve the performances in terms of spatial, timing and energy resolution, photo detection \textellipsis We will give a brief overview of the GEM and Micromegas detectors in particle physics experiments over the past decades, follow by a state of the art of the new gaseous devices structures being developed for the next generation of collider experiment such as the Electron Ion Collider (EIC) or high luminosity LHC. [Preview Abstract] |
Friday, November 11, 2016 4:15PM - 4:45PM |
J2.00002: Silicon Photomultipliers in Astroparticle Experiments Invited Speaker: Nepomuk Otte The majority of astroparticle detectors are photon hungry and use large-area photon detectors. While the classical photomultiplier tube still plays a dominant role in the field, SiPMs are on the rise and are being used in a number of experiments already. With the recent boost in performance of SiPMs it is to be expected that SiPMs will outnumber PMTs in astroparticle experiments in the not so distant future. In this presentation I discuss the requirements of photon detectors in astroparticle experiments, how existing SiPMs meet these requirements, and what improvements remain to be done. I focus on imaging atmospheric Cherenkov telescopes like the planned Cherenkov Telescope Array but will also address the needs of other techniques in astroparticle physics, which use large numbers of photon detectors. [Preview Abstract] |
Friday, November 11, 2016 4:45PM - 5:15PM |
J2.00003: From milliKelvin to MegaKelvin: Probing the hot universe with cool detectors Invited Speaker: Tarek Saab The Universe is a wild and wooly place, simultaneously very cold (with a CMB temperature of 2.7 K) and exceedingly hot (full of $\sim 10^6$ K intergalactic x-ray emitting gas), and made up of things like the strangely named Cold Dark Matter (whose temperature in our neighborhood of the Milky Way is $\sim 10^8$ K). In an effort to understand the inner workings of the Universe, physicists have increasingly been turning to detectors that are operated at cryogenic temperatures (down to $10^{-3}$ K). This talk will discuss the principles behind cryogenic detectors and microcalorimaters, and their applications at the frontiers of particle physics and astrophysics. [Preview Abstract] |
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