0000000000311893

AUTHOR

B. Brooks

showing 3 related works from this author

The ANTARES optical module

2001

The ANTARES collaboration is building a deep sea neutrino telescope in the Mediterranean Sea. This detector will cover a sensitive area of typically 0.1 km-squared and will be equipped with about 1000 optical modules. Each of these optical modules consists of a large area photomultiplier and its associated electronics housed in a pressure resistant glass sphere. The design of the ANTARES optical module, which is a key element of the detector, has been finalized following extensive R & D studies and is reviewed here in detail.

Nuclear and High Energy PhysicsPhotomultiplierAstrophysics and AstronomyPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaNeutrino telescopeFOS: Physical sciencesAstrophysics01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsOptical Moduleneutrino astronomyHigh Energy Physics - Experiment (hep-ex)deep sea detector; neutrino astronomyMediterranean sea0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]14. Life underwaterElectronicsDetectors and Experimental Techniques010306 general physicsInstrumentationRemote sensingPhysics010308 nuclear & particles physicsDetectorAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsNeutrino detectordeep sea detectorFísica nuclearNeutrino astronomy
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Aerosol influences on low-level clouds in the West African monsoon

2019

Abstract. Low-level clouds (LLC) cover a wide area of southern West Africa (SWA) during the summer monsoon months, and have an important cooling effect on the regional climate. Previous studies of these clouds have focused on modelling and remote sensing via satellite. We present the first comprehensive set of regional, in situ measurements of cloud microphysics, taken during June – July 2016, as part of the DACCIWA (Dynamics-Aerosol-Chemistry-Clouds Interactions in West Africa) campaign, assessing spatial and temporal variation in the properties of these clouds. LLC developed overnight and mean cloud cover peaked a few hundred kilometres inland around 10:00 local solar time (LST), before c…

Atmospheric Science010504 meteorology & atmospheric sciencesCloud coverPopulationclouds[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/Meteorology010502 geochemistry & geophysicsMonsoonAtmospheric sciences01 natural sciencescomplex mixtureslcsh:Chemistrylow level cloudsddc:550Cloud condensation nuclei1902WolkenphysikeducationSouthern Hemisphere0105 earth and related environmental sciencesOrographic lifteducation.field_of_studyaerosol effectmicropyhsicslcsh:QC1-999AerosolEarth scienceslcsh:QD1-99913. Climate action[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/ClimatologySolar timeEnvironmental sciencesense organs/dk/atira/pure/subjectarea/asjc/1900/1902lcsh:Physics
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Background light in potential sites for the ANTARES undersea neutrino telescope

2000

The ANTARES collaboration has performed a series of {\em in situ} measurements to study the background light for a planned undersea neutrino telescope. Such background can be caused by $^{40}$K decays or by biological activity. We report on measurements at two sites in the Mediterranean Sea at depths of 2400~m and 2700~m, respectively. Three photomultiplier tubes were used to measure single counting rates and coincidence rates for pairs of tubes at various distances. The background rate is seen to consist of three components: a constant rate due to $^{40}$K decays, a continuum rate that varies on a time scale of several hours simultaneously over distances up to at least 40~m, and random bur…

PhotomultiplierTrigger rateContinuum (design consultancy)Neutrino telescopeFOS: Physical sciencesAstrophysicsAstrophysics01 natural sciencesCoincidenceHigh Energy Physics - Experiment[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]High Energy Physics - Experiment (hep-ex)0103 physical sciencesMetre14. Life underwater010306 general physicsPhysics[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]010308 nuclear & particles physicsAstrophysics (astro-ph)AstronomyAstronomy and AstrophysicsConstant rate13. Climate actionFísica nuclearBackground lightAstroparticle Physics
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