A compact ultra-clean system for deploying radioactive sources inside the KamLAND detector
| Autor: | T. I. Banks, B. E. Berger, M. Batygov, D. A. Dwyer, K. Ueshima, Hideki Watanabe, Y. Gando, M. Sakai, H. M. Steiner, Hitoshi Murayama, G. A. Horton-Smith, Kunio Inoue, J. A. Detwiler, C. Grant, A. Piepke, A. Suzuki, J. Wallig, T. Mitsui, J. Maricic, Ke Han, Stuart J. Freedman, B. D. Xu, K. Nakamura, Hidetomo Yoshida, K. M. Heeger, Yu. Efremenko, Sanshiro Enomoto, H. Ikeda, T. Miletic, M. P. Decowski, K. Tamae, J. Shirai, Werner Tornow, T. Bloxham, B. K. Fujikawa, K. E. Downum, I. Shimizu, Yasuhiro Kishimoto, S. Yoshida, Giorgio Gratta, R. D. McKeown, Chao Zhang, C. E. Lane, John G. Learned, Lindley Winslow, S. Matsuno, N. Ybarrolaza, G. Keefer, Hugon J Karwowski, D. M. Markoff, A. Kozlov, T. O'Donnell, Koichi Ichimura, O. Perevozchikov, Y. Takemoto, M. Koga, A. Gando |
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| Přispěvatelé: | Astroparticle Physics (IHEF, IoP, FNWI) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics - Instrumentation and Detectors business.industry Physics::Instrumentation and Detectors Detector FOS: Physical sciences Wire rope Instrumentation and Detectors (physics.ins-det) engineering.material Scintillator High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex) Intrusion Optics Neutrino detector Glovebox Nitrogen gas engineering Calibration Nuclear Experiment (nucl-ex) business Instrumentation Nuclear Experiment |
| Zdroj: | Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 769, 88-96. Elsevier |
| ISSN: | 0168-9002 |
| Popis: | 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. Revised author affiliations, corrected typos, made minor improvements to text, and revised references |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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