Monte Carlo studies of geomagnetic field effects on the imaging air Cherenkov technique for the MAGIC telescope site
Creators
- 1. ETH Zurich, CH-8093 Switzerland (Switzerland)
- 2. Universidad Complutense, E-28040 Madrid (Spain)
- 3. Institut de Fisica d'Altes Energies, Edifici Cn., E-08193 Bellaterra, Barcelona (Spain)
- 4. University of Lodz, PL-90236 Lodz (Poland)
- 5. Max-Planck-Institut fuer Physik, D-80805 Muenchen (Germany)
Description
Imaging air Cherenkov telescopes (IACTs) detect the Cherenkov light from extensive air showers (EAS) initiated by very high energy (VHE) γ-rays impinging on the Earth's atmosphere. Due to the overwhelming background from hadron-induced EAS, the discrimination of the rare γ-like events is vital. The influence of the geomagnetic field (GF) on the development of EAS can further complicate the imaging air Cherenkov technique. The amount and the angular distribution of Cherenkov light from EAS can be obtained by means of Monte Carlo (MC) simulations. Here we present the results from dedicated MC studies of GF effects on images from γ-ray initiated EAS for the MAGIC telescope site, where the GF strength is ∼40μT. The results from the MC studies suggest that GF effects degrade not only measurements of very low energy γ-rays below ∼100GeV but also those at TeV-energies
Availability note (English)
Available from http://dx.doi.org/10.1016/j.nima.2008.07.144Additional details
Identifiers
- DOI
- 10.1016/j.nima.2008.07.144;
- arXiv
- arXiv:0802.2551v4;
- PII
- S0168-9002(08)01097-8;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 595
- Journal Issue
- 3
- Journal Page Range
- p. 572-586
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40041765
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ANGULAR DISTRIBUTION; COMPUTERIZED SIMULATION; EARTH ATMOSPHERE; EXTENSIVE AIR SHOWERS; GAMMA RADIATION; GEOMAGNETIC FIELD; HADRONS; IMAGES; MONTE CARLO METHOD; TELESCOPES; TEV RANGE
- Descriptors DEC
- CALCULATION METHODS; COSMIC RADIATION; COSMIC SHOWERS; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; IONIZING RADIATIONS; MAGNETIC FIELDS; RADIATIONS; SECONDARY COSMIC RADIATION; SHOWERS; SIMULATION
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.