Physics – Medical Physics
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apsp.conf..297t&link_type=abstract
ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS . Proceedings of the 9th Conference . Held
Physics
Medical Physics
Scientific paper
The first string of IceCube - a kilometer-scale, high energy neutrino detector - was deployed in January this year deep in the Antarctic ice. At completion, IceCube will consist of at least 70 strings each with 60 Digital Optical Modules (DOMs) and a surface array of 280 DOMs. 2004 was the first year of real production and testing of these DOMs: 400 DOMs were produced in the US, Sweden and Germany. A series of tests such as basic functionality, phototube dark noise, optical sensitivity, linearity, time resolution, and high voltage tests were performed in special Dark Freezer Laboratories at temperatures ranging from +25 °C to -55 °C. 280 DOMs were sent to the South Pole for deployment and tested there again prior to deployment. Now frozen in the ice, the DOMs are showing exceptionally promising functionality. Here DOM production and testing procedures and corresponding results are discussed and data from the first in-ice string are presented.
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