Bulletin of the American Physical Society
2019 Joint Fall Meeting of the Texas Sections of APS, AAPT and Zone 13 of the SPS
Volume 64, Number 18
Friday–Saturday, October 25–26, 2019; Lubbock, Texas
Session F03: Nuclear & Particle III |
Hide Abstracts |
Chair: Kenichi Hatakeyama, Baylor University Room: Student Union Building Mesa Room |
Friday, October 25, 2019 4:00PM - 4:12PM |
F03.00001: Mechanical Design of the Dual-Phase DUNE Far Detector Cristobal Garces, Jaehoon Yu, Hector Carranza, Jakob Scantlin, Cristian Garces, Mathew Rapp, Archit Jaiswal, Akolade Adebayo, Steven Boucher, Matthew Beutel, Aayush Bhattarai The Deep Underground Neutrino Experiment (DUNE) will consist of a far detector located at the Sandford Underground Research Facility (SURF) in South Dakota 1300 km away from Fermilab in Illinois. The far detector is a composition of four LArTPCs. Of these individual detectors, one will utilize dual-phase (DP) technology. The DP Far Detector differs from the typical single-phase (SP) detectors in that ionization charges are accelerated vertically rather than horizontally, and that detection of these particles occur in gaseous argon. To accomplish this, a sophisticated high voltage system and vertically oriented field cage will be required. The entirety of the DP field cage is 12 meters tall, 12 meters wide, and 60 meters long. The frame of the cage is made up of fiber-reinforced-plastic (FRP) I-beams and is populated with aluminum profiles that will distribute a uniform electric field in conjunction with the HV system. This talk will address the mechanical design of the DUNE DP Field Cage. [Preview Abstract] |
Friday, October 25, 2019 4:12PM - 4:24PM |
F03.00002: Purification System and Purity Measurements of LiquidArgon for Liquid Argon Time Projection Chambers Akshat Tripathi, Ilker Parmaksiz, Jonathan Asaadi, Zachary Williams Liquid Argon Time Projection Chambers (LArTPCs) serve as a high resolution and high sensitivity detectors that are used to conduct neutrino experiments and dark matter searches. In order to achieve long drift times for electrons that are produced as a result of charged particle (created by a neutrino interaction) ionizing our volume of argon, we need to achieve purity levels of liquid argon (LAr) at an order of a few parts per trillion (ppt). To achieve these high purity levels, our purification system system uses activated copper and molecular sieve granules to remove impurities such as oxygen and water, respectively, from LAr and by utilizing high powered resistors, it also boils the liquid furiously to recirculate argon in the system. We use the filter materials present to then regenerate the filter materials in situ by heating them at about 180oC and passing Ar-H mixture through them. In this work, we describe the construction and workings of a purification system and purity monitor used at The University of Texas at Arlington. [Preview Abstract] |
Friday, October 25, 2019 4:24PM - 4:36PM |
F03.00003: Development of Fermilab's Short Baseline Neutrino Experiment Online Monitoring System Cristian Garces, Jaehoon Yu, Cristobal Garces, Akolade Adebayo, Archit Jaiswal, Jakob Scantlin, Matthew Rapp, Steven Boucher, Matthew Beutel, Zachary Williams The Short Baseline Neutrino (SBN) Online monitoring system will monitor the SBN program detectors. Two such detectors that will be focused on in this talk is the Short Baseline Far Detector (ICARUS) and Short Baseline Near Detector (SBND). The purpose of this monitoring system is not to replace the control system but allow both off and on-site physicists and engineers to monitor and gather important data from the detectors. Furthermore, this new system will provide ease of access and increase user efficiency and experience to perform sequential checkups on their designated experiment. In this talk, I will discuss the SBN experiments, their physics goals, the design of the online monitoring system and the inner working of it, including how data is retrieved, the types of measurements calculated and presented. [Preview Abstract] |
Friday, October 25, 2019 4:36PM - 4:48PM |
F03.00004: Electric Field Simulation of the Field Cage for Dual Phase Deep Underground Neutrino Experiment Archit Jaiswal The Deep Underground Neutrino Experiment (DUNE) is being conducted across the world to study the characteristics of subatomic particle known as neutrinos. This subatomic particle can revel various unsolved mysteries like existence of matter in the universe. The neutrino interaction will be captured inside a 12m x 12m x 60m field cage, which is constructed by modules made of aluminum strips and fiber-glass I-beams. The experiment requires to have uniform electric field across the field cage which will be submerged in liquid Argon. After analyzing the faults from previous design of submodules, several amendments were applied to the field cage design. Before the actual construction and test of field cage, DUNE collaborators at UTA are attempting to simulate the electric field across the new field cage design. [Preview Abstract] |
Friday, October 25, 2019 4:48PM - 5:00PM |
F03.00005: Time-of-Flight at NOvA Test Beam Aidan Medcalf The NOvA Test Beam experiment at Fermi National Accelerator Laboratory (FNAL) in Batavia, IL is a test beam experiment designed to characterize the response of the NOvA detector to known incident particles from the FNAL Meson Center beamline. NOvA Test Beam relies on time-of-flight and momentum measurements for particle identification. A high-precision time-of-flight system was built, consisting of two plastic scintillator counters, each with four photomultiplier tubes attached. The response of each photomultiplier is digitized and recorded for offline timing reconstruction. Results from beam data taken in the summer of 2019 will be presented. [Preview Abstract] |
Friday, October 25, 2019 5:00PM - 5:12PM |
F03.00006: Gain Measurements of a Three-layer Gas Electron Multiplier Detector Jakob Scantlin, DongHyun Kim, Jaehoon yu, steven boucher, Cristobal Garces, Cristain Garces, Matthew Beutel, Archit Jaiswal, Akolade Adebayo, Aayush Bhattari The Gas Electron Multiplier (GEM) is a detector designed to detect tracks of ionizing radiation. It detects radiation by having a high voltage applied usually around 2-3kV that is divided among 3 GEM foils. These GEM foils have tiny holes etched into them in order to increase the electric field inside them to \textasciitilde 10,000V/cm which accelerates the electrons released from the ionized gas mixture. After the electrons are accelerated through the first layer of GEM foil, those electrons ionize other gas molecules between the first and second layer, creating an electron multiplication, or avalanche effect. This effect is cascaded in a three-layer GEM to increase the avalanche even more than with just one layer. At the induction layer, the electrons induce a current in 128 different metal strips. Based on the current and the time of each event, the charge on each strip can be determined by the readout system. Once the total charge collected is found, and the number of primary electrons generated by the initial ionizing radiation source are found, the gain of the GEM can be calculated. In this talk, I will present the gain measurement of a three-layer GEM chamber constructed for medical imaging. The gain is plotted as a function of the applied high voltage and the radiation source. [Preview Abstract] |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700