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Calibration and Characterization of the IceCube Photomultiplier Tube

Description: Over 5,000 PMTs are being deployed at the South Pole to compose the IceCube neutrino observatory. Many are placed deep in the ice to detect Cherenkov light emitted by the products of high-energy neutrino interactions, and others are frozen into tanks on the surface to detect particles from atmospheric cosmic ray showers. IceCube is using the 10-inch diameter R7081-02 made by Hamamatsu Photonics. This paper describes the laboratory characterization and calibration of these PMTs before deployment… more
Date: February 11, 2010
Creator: Collaboration, IceCube; Abbasi, R. & al., et
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Cryogenic Facitlity Design in Bepc Ii Superconducting Upgrade.

Description: Three kinds of superconducting device are to be constructed at interaction regions in the upgrade of Beijing Electron-Positron Collider (BEPCII). Two sets of refrigerators with each capacity of 500W at 4.5K are adopted to provide the refrigeration for them. The cryogenic systems to support the operation of the superconducting facilities are under design by Harbin Institute of Technology in China. This paper presents the current design of main cryogenic facilities.
Date: May 11, 2004
Creator: Jia, L. X.; Wang, L.; Yang, G. D. & Al., Et
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Engineering design of the National Spherical Torus Experiment

Description: NSTX is a proof-of-principle experiment aimed at exploring the physics of the ``spherical torus'' (ST) configuration, which is predicted to exhibit more efficient magnetic confinement than conventional large aspect ratio tokamaks, amongst other advantages. The low aspect ratio (R/a, typically 1.2--2 in ST designs compared to 4--5 in conventional tokamaks) decreases the available cross sectional area through the center of the torus for toroidal and poloidal field coil conductors, vacuum vessel w… more
Date: May 11, 2000
Creator: Neumeyer, C.; Heitzenroeder, P.; J. Spitzer, J. Chrzanowski & al, et
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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