pith. machine review for the scientific record. sign in

arxiv: 1407.0413 · v2 · submitted 2014-07-01 · ⚛️ physics.ins-det · hep-ex· nucl-ex

Recognition: unknown

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

T.I. Banks , S.J. Freedman , J. Wallig , N. Ybarrolaza , A. Gando , Y. Gando , H. Ikeda , K. Inoue
show 49 more authors
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
Authors on Pith no claims yet
classification ⚛️ physics.ins-det hep-exnucl-ex
keywords cableradioactivesourcesattachedcompactdetectordevicehousing
0
0 comments X
read the original 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.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.