THE FIRST TELESCOPE OF THE HEGRA AIR CHERENKOV IMAGING TELESCOPE ARRAY

Authors
MIRZOYAN R KANKANIAN R KRENNRICH F MULLER N SANDER H SAWALLISCH P AHARONIAN F AKHPERJANIAN A BEGLARIAN A FERNANDEZ J FONSECA V GREWE W HEUSLER A KONOPELKO AK LORENZ E MERCK M PLYASHESHNIKOV AV RENKER D SAMORSKI M SAUERLAND K SMARSCH E STAMM W ULRICH M WIEDNER CA WIRTH H
Citation
R. Mirzoyan et al., THE FIRST TELESCOPE OF THE HEGRA AIR CHERENKOV IMAGING TELESCOPE ARRAY, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 351(2-3), 1994, pp. 513-526
Citations number
21
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
351
Issue
2-3
Year of publication
1994
Pages
513 - 526
Database
ISI
SICI code
0168-9002(1994)351:2-3<513:TFTOTH>2.0.ZU;2-S
Abstract
In search of VHE gamma ray emission from cosmic point sources a system of imaging Cherenkov telescopes is constructed at present on the Cana rian island of La Palma; the first telescope has been operational sinc e 1992. The Cherenkov light from air shower particles is collected by a 5 m(2) reflector. The camera at the focus contains 37 photomultiplie rs which sample the images of the Cherenkov flashes. The subsequent im age analysis allows the discrimination of gamma ray induced events fro m the much more abundant charged cosmic ray induced showers. The teles cope has an effective energy threshold for gamma showers of about 1.5 TeV. During the first year of operation a signal from the Crab nebula was detected.