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Insertion of STC into TRT at the Department of Physics, Oxford
Credit: CERN

Amy Cottle

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Sub department

  • Particle Physics

Research groups

  • LUX-ZEPLIN
amy.cottle@physics.ox.ac.uk
Telephone: 01865 (2)73459
Denys Wilkinson Building, room 504A
  • About
  • Publications

LUX-ZEPLIN (LZ) Technical Design Report

(2017)

Authors:

BJ Mount, S Hans, R Rosero, M Yeh, C Chan, RJ Gaitskell, DQ Huang, J Makkinje, DC Malling, M Pangilinan, CA Rhyne, WC Taylor, JR Verbus, YD Kim, HS Lee, J Lee, DS Leonard, J Li, J Belle, A Cottle, WH Lippincott, DJ Markley, TJ Martin, M Sarychev, TE Tope, M Utes, R Wang, I Young, HM Araújo, AJ Bailey, D Bauer, D Colling, A Currie, S Fayer, F Froborg, S Greenwood, WG Jones, V Kasey, M Khaleeq, I Olcina, B López Paredes, A Richards, TJ Sumner, A Tomás, A Vacheret, P Brás, A Lindote, MI Lopes, F Neves, JP Rodrigues, C Silva, VN Solovov, MJ Barry, A Cole, A Dobi, WR Edwards, CH Faham, S Fiorucci, NJ Gantos, VM Gehman, MGD Gilchriese, K Hanzel, MD Hoff, K Kamdin, KT Lesko, CT McConnell, K O'Sullivan, KC Oliver-Mallory, SJ Patton, JS Saba, P Sorensen, KJ Thomas, CE Tull, WL Waldron, MS Witherell, A Bernstein, K Kazkaz, J Xu, D Yu Akimov, AI Bolozdynya, AV Khromov, AM Konovalov, AV Kumpan, VV Sosnovtsev, CE Dahl, D Temples, MC Carmona-Benitez, L de Viveiros, DS Akerib, H Auyeung, TP Biesiadzinski, M Breidenbach, R Bramante, R Conley, WW Craddock, A Fan, A Hau, CM Ignarra, W Ji, HJ Krebs, R Linehan, C Lee, S Luitz, E Mizrachi, ME Monzani, FG O'Neill, S Pierson, M Racine, BN Ratcliff, GW Shutt, TA Shutt, K Skarpaas, K Stifter, WH To, J Va'vra, TJ Whitis, WJ Wisniewski, X Bai, R Bunker, R Coughlen, C Hjemfelt, R Leonard, EH Miller, E Morrison, J Reichenbacher, RW Schnee, MR Stark, K Sundarnath, DR Tiedt, M Timalsina, P Bauer, B Carlson, M Horn, M Johnson, J Keefner, C Maupin, DJ Taylor, S Balashov, P Ford, V Francis, E Holtom, A Khazov, A Kaboth, P Majewski, JA Nikkel, J O'Dell, RM Preece, MGD van der Grinten, SD Worm, RL Mannino, TM Stiegler, PA Terman, RC Webb, C Levy, J Mock, M Szydagis, JK Busenitz, M Elnimr, JY-K Hor, Y Meng, A Piepke, I Stancu, L Kreczko, B Krikler, B Penning, EP Bernard, RG Jacobsen, DN McKinsey, R Watson, JE Cutter, S El-Jurf, RM Gerhard, D Hemer, S Hillbrand, B Holbrook, BG Lenardo, AG Manalaysay, JA Morad, S Stephenson, JA Thomson, M Tripathi, S Uvarov, SJ Haselschwardt, S Kyre, C Nehrkorn, HN Nelson, M Solmaz, DT White, M Cascella, JEY Dobson, C Ghag, X Liu, L Manenti, L Reichhart, S Shaw, U Utku, P Beltrame, TJR Davison, MF Marzioni, A St J Murphy, A Nilima, B Boxer, S Burdin, A Greenall, S Powell, HJ Rose, P Sutcliffe, J Balajthy, TK Edberg, CR Hall, JS Silk, S Hertel, CW Akerlof, M Arthurs, W Lorenzon, K Pushkin, M Schubnell, KE Boast, C Carels, T Fruth, H Kraus, F-T Liao, J Lin, PR Scovell, E Druszkiewicz, D Khaitan, M Koyuncu, W Skulski, FLH Wolfs, J Yin, EV Korolkova, VA Kudryavtsev, P Rossiter, D Woodward, AA Chiller, C Chiller, D-M Mei, L Wang, W-Z Wei, M While, C Zhang, SK Alsum, T Benson, DL Carlsmith, JJ Cherwinka, S Dasu, G Gregerson, B Gomber, A Pagac, KJ Palladino, CO Vuosalo, Q Xiao, JH Buckley, VV Bugaev, MA Olevitch, EM Boulton, WT Emmet, TW Hurteau, NA Larsen, EK Pease, BP Tennyson, L Tvrznikova
More details from the publisher
Details from ArXiV

A SQUID magnetometry system for a cryogenic neutron electric dipole moment experiment

Nuclear Instruments and Methods in Physics Research Section A Elsevier 763 (2014) 483-494

Authors:

Samuel Henry, C Clarke, A Cottle, A Lynch, M Pipe

Abstract:

Precision magnetometry is an essential component of any neutron electric dipole moment experiment in order to correct shifts in the neutron precession frequency due to changes in the magnetic field. We have developed a magnetometry system using 12 SQUID sensors, designed to operate in 0.5 K superfluid helium. The pick-up loops located near the neutron cell are connected to the SQUID sensors by ~2 m twisted wire pairs. The SQUID readout cables are run via an intermediate stage at 4.2 K. The system has been installed and tested in the cryoEDM apparatus at the ILL, Grenoble, and used to characterise the magnetic environment. Further tests in a suitable low noise environment confirm it meets our requirements.
More details from the publisher
Details from ORA
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Characterisation of superconducting capillaries for magnetic shielding of twisted-wire pairs in a neutron electric dipole moment experiment

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Elsevier 763 (2014) 155-162

Authors:

Samuel Henry, M Pipe, A Cottle, C Clarke, U Divakar, A Lynch

Abstract:

The cryoEDM neutron electric dipole moment experiment requires a SQUID magnetometry system with pick-up loops inside a magnetically shielded volume connected to SQUID sensors by long (up to 2 m) twisted-wire pairs (TWPs). These wires run outside the main shield, and therefore must run through superconducting capillaries to screen unwanted magnetic pick-up. We show that the average measured transverse magnetic pick-up of a set of lengths of TWPs is equivalent to a loop area of 5.0×10−6 m2/m, or 14 twists per metre. From this we set the requirement that the magnetic shielding factor of the superconducting capillaries used in the cryoEDM system must be greater than 8.0×104. The shielding factor—the ratio of the signal picked-up by an unshielded TWP to that induced in a shielded TWP—was measured for a selection of superconducting capillaries made from solder wire. We conclude the transverse shielding factor of a uniform capillary is greater than 107. The measured pick-up was equal to, or less than that due to direct coupling to the SQUID sensor (measured without any TWP attached). We show that discontinuities in the capillaries substantially impair the magnetic shielding, yet if suitably repaired, this can be restored to the shielding factor of an unbroken capillary. We have constructed shielding assemblies for cryoEDM made from lengths of single core and triple core solder capillaries, joined by a shielded Pb cylinder, incorporating a heater to heat the wires above the superconducting transition as required.
More details from the publisher
Details from ORA
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