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First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere
Univ Abou Bekr Belkaid Tlemcen, Fac Technol, Telecom Lab, Tilimsen, Algeria..
Nihon Univ Chiyoda, Tokyo, Japan..
Univ Alabama, Huntsville, AL 35899 USA..
Univ Jijel, Lab Theoret Phys LPT, Jijel, Algeria..
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2018 (Engelska)Ingår i: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 13, artikel-id P05023Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25(th) of August 2014 from Timmins, Canada. The flight ended successfully after maintaining the target altitude of 38 km for five hours. One part of the mission was a 2.5 hour underflight using a helicopter equipped with three UV light sources (LED, xenon flasher and laser) to perform an inflight calibration and examine the detectors capability to measure tracks moving at the speed of light. We describe the helicopter laser system and details of the underflight as well as how the laser tracks were recorded and found in the data. These are the first recorded laser tracks measured from a fluorescence detector looking down on the atmosphere. Finally, we present a first reconstruction of the direction of the laser tracks relative to the detector.

Ort, förlag, år, upplaga, sidor
IOP PUBLISHING LTD , 2018. Vol. 13, artikel-id P05023
Nyckelord [en]
Detectors for UV, visible and IR photons, Lasers, Balloon instrumentation, Space instrumentation
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URN: urn:nbn:se:kth:diva-231633DOI: 10.1088/1748-0221/13/05/P05023ISI: 000432931100003Scopus ID: 2-s2.0-85048075268OAI: oai:DiVA.org:kth-231633DiVA, id: diva2:1244809
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QC 20180903

Tillgänglig från: 2018-09-03 Skapad: 2018-09-03 Senast uppdaterad: 2018-09-03Bibliografiskt granskad

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Capel, FrancescaCarlson, PerFuglesang, Christer

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