CaltechAUTHORS
  A Caltech Library Service

A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector

Banks, T. I. and Dwyer, D. A. and McKeown, R. D. and Zhang, C. (2015) A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 769 . pp. 88-96. ISSN 0168-9002. https://resolver.caltech.edu/CaltechAUTHORS:20141222-080822564

[img]
Preview
PDF - Submitted Version
See Usage Policy.

3292Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20141222-080822564

Abstract

We describe a compact, ultra-clean device used to deploy radioactive sources along the vertical axis of the KamLAND liquid-scintillator neutrino detector for purposes of calibration. The device worked by paying out and reeling in precise lengths of a hanging, small-gauge wire rope (cable); an assortment of interchangeable radioactive sources could be attached to a weight at the end of the cable. All components exposed to the radiopure liquid scintillator were made of chemically compatible UHV-cleaned materials, primarily stainless steel, in order to avoid contaminating or degrading the scintillator. To prevent radon intrusion, the apparatus was enclosed in a hermetically sealed housing inside a glove box, and both volumes were regularly flushed with purified nitrogen gas. An infrared camera attached to the side of the housing permitted real-time visual monitoring of the cable׳s motion, and the system was controlled via a graphical user interface.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/j.nima.2014.09.068DOIArticle
http://www.sciencedirect.com/science/article/pii/S0168900214011000PublisherArticle
http://arxiv.org/abs/1407.0413arXivDiscussion Paper
Additional Information:© 2014 Elsevier B.V. Received 2 July 2014; Received in revised form 25 September 2014; Accepted 25 September 2014; Available online 7 October 2014. We are grateful to the UC Berkeley Physics and LBNL machine shops for manufacturing and assembling many MiniCal components. Thanks are also due to K. Terao and C. Shimmin for their assistance in testing MiniCal; Al Smith of the LBNL Low Background Facility for radioassaying materials; J. Busenitz at the University of Alabama for help in ensuring that new and existing radioactive sources were mechanically compatible with MiniCal; and the former members of the full-volume calibration system team for sharing their experience and advice. The KamLAND experiment is supported by the Grant-in-Aid for Specially Promoted Research under Grants 16002002 and 21000001 from the Japanese Ministry of Education, Culture, Sports, Science and Technology; the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan; Stichting voor Fundamenteel Onderzoek der Materie (FOM) in the Netherlands; and the US Department of Energy (DOE) under Grants DE-AC02-05CH11231 and DE-FG03-00ER41138, as well as other DOE grants to individual institutions. The Kamioka Mining and Smelting Company provided service for activities in the mine.
Funders:
Funding AgencyGrant Number
Ministry of Education, Culture, Sports, Science and Technology (MEXT)16002002
Ministry of Education, Culture, Sports, Science and Technology (MEXT)21000001
World Premier International Research Center Initiative (WPI Initiative), MEXT, JapanUNSPECIFIED
Stichting voor Fundamenteel Onderzoek der Materie (FOM)UNSPECIFIED
Department of Energy (DOE)DE-AC02-05CH11231
Department of Energy (DOE)DE-FG03-00ER41138
Subject Keywords:Large detector systems for particle and astroparticle physics; Detector alignment and calibration methods (lasers, Sources, Particle-beams); Scintillators, Scintillation and light emission processes (solid, Gas and liquid scintillators)
Record Number:CaltechAUTHORS:20141222-080822564
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20141222-080822564
Official Citation:T.I. Banks, S.J. Freedman, J. Wallig, N. Ybarrolaza, A. Gando, Y. Gando, H. Ikeda, K. Inoue, Y. Kishimoto, M. Koga, T. Mitsui, K. Nakamura, I. Shimizu, J. Shirai, A. Suzuki, Y. Takemoto, K. Tamae, K. Ueshima, H. Watanabe, B.D. Xu, H. Yoshida, S. Yoshida, A. Kozlov, C. Grant, G. Keefer, A. Piepke, T. Bloxham, B.K. Fujikawa, K. Han, K. Ichimura, H. Murayama, T. O׳Donnell, H.M. Steiner, L.A. Winslow, D.A. Dwyer, R.D. McKeown, C. Zhang, B.E. Berger, C.E. Lane, J. Maricic, T. Miletic, M. Batygov, J.G. Learned, S. Matsuno, M. Sakai, G.A. Horton-Smith, K.E. Downum, G. Gratta, Y. Efremenko, O. Perevozchikov, H.J. Karwowski, D.M. Markoff, W. Tornow, K.M. Heeger, J.A. Detwiler, S. Enomoto, M.P. Decowski, A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 769, 1 January 2015, Pages 88-96, ISSN 0168-9002, http://dx.doi.org/10.1016/j.nima.2014.09.068. (http://www.sciencedirect.com/science/article/pii/S0168900214011000)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53061
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:22 Dec 2014 16:40
Last Modified:03 Oct 2019 07:46

Repository Staff Only: item control page