The aim of the EUSO-TA project is to install a prototype of the JEM-EUSO telescope in the Telescope Array (TA) site in Black Rock Mesa, Utah, USA and perform observations of ultraviolet light generated by cosmic-ray showers and artificial sources. The detector consists of one Photo Detector Module (PDM), identical to the 137 that will be present on the JEM-EUSO focal surface. The PDM is composed of 36 Hamamatsu multi-anode photomultipliers (64 channels per tube), for a total of 2304 channels. Front-End readout is performed by 36 ASICS, with trigger and readout tasks performed by two FPGA boards that send the data to a CPU and storage system. Two, 1 meter side square Fresnel lenses provide a field of view of 8◦ × 8◦. The telescope is housed in a shed located in front of one of the fluorescence detectors of the Telescope Array collaboration, pointing in the direction of the ELF (Electron Light Source) and CLF (Central Laser Facility). The aim of the project is to calibrate the response function of the EUSO telescope with the TA fluorescence detector in presence of a shower of known intensity and distribution. An initial run of about one year starting from summer 2013 is foreseen, during which we expect to observe, triggered by TA electronics, a few cosmic ray events which will be used to further refine the calibration of the EUSO-TA with TA. Medium term plans include the increase of the number of PDM and therefore the field of view. © 2013 Sociedade Brasileira de Fisica. All Rights Reserved.

Calibration and testing of a prototype of the JEM-EUSO telescope on Telescope Array site

Scotti, V.;
2013

Abstract

The aim of the EUSO-TA project is to install a prototype of the JEM-EUSO telescope in the Telescope Array (TA) site in Black Rock Mesa, Utah, USA and perform observations of ultraviolet light generated by cosmic-ray showers and artificial sources. The detector consists of one Photo Detector Module (PDM), identical to the 137 that will be present on the JEM-EUSO focal surface. The PDM is composed of 36 Hamamatsu multi-anode photomultipliers (64 channels per tube), for a total of 2304 channels. Front-End readout is performed by 36 ASICS, with trigger and readout tasks performed by two FPGA boards that send the data to a CPU and storage system. Two, 1 meter side square Fresnel lenses provide a field of view of 8◦ × 8◦. The telescope is housed in a shed located in front of one of the fluorescence detectors of the Telescope Array collaboration, pointing in the direction of the ELF (Electron Light Source) and CLF (Central Laser Facility). The aim of the project is to calibrate the response function of the EUSO telescope with the TA fluorescence detector in presence of a shower of known intensity and distribution. An initial run of about one year starting from summer 2013 is foreseen, during which we expect to observe, triggered by TA electronics, a few cosmic ray events which will be used to further refine the calibration of the EUSO-TA with TA. Medium term plans include the increase of the number of PDM and therefore the field of view. © 2013 Sociedade Brasileira de Fisica. All Rights Reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/743089
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