Light concentrators for Borexino and CTF
Creators
Description
Light concentrators for the solar neutrino experiment Borexino and the Counting Test Facility (CTF) have been developed and constructed. They increase the light yield of these detectors by factors of 2.5 and 8.8, respectively. Technical challenges like long-term stability in various media, high reflectivity and radiopurity have been addressed and the concepts to overcome these difficulties will be described. Gamma spectroscopy measurements of the concentrators show an upper limit of 12 μBq/g for uranium and a value of 120 μBq/g for thorium. Upper limits on other possible contaminations like 26Al are presented. The impact of these results on the performance of Borexino and the CTF are discussed and it is shown that the design goals of both experiments are fulfilled
Additional details
Identifiers
- DOI
- 10.1016/j.nima.2004.05.095;
- arXiv
- arXiv:physics/0310076v2;
- PII
- S016890020401085X;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 530
- Journal Issue
- 3
- Journal Page Range
- p. 453-462
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36019041
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ALUMINIUM 26; CONCENTRATORS; DESIGN; GAMMA SPECTROSCOPY; NEUTRINO DETECTION; PERFORMANCE; RADIATION DETECTORS; REFLECTIVITY; SOLAR NEUTRINOS; TEST FACILITIES; THORIUM; URANIUM; YIELDS
- Descriptors DEC
- ACTINIDES; ALUMINIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DETECTION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; ISOTOPES; LEPTONS; LIGHT NUCLEI; MASSLESS PARTICLES; MEASURING INSTRUMENTS; METALS; NEUTRINOS; NUCLEI; ODD-ODD NUCLEI; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATION DETECTION; RADIATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SOLAR PARTICLES; SOLAR RADIATION; SPECTROSCOPY; STELLAR RADIATION; SURFACE PROPERTIES; YEARS LIVING RADIOISOTOPES
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.