Hilfsnavigation

Zielgruppennavigation

"First Auger Multi-pixel-photon-counter-camera for the Observation of Ultra-high-energy-cosmic-ray air Showers"

Introduction

A sophisticated method for the observation of ultra-high-energy cosmic rays (UHECRs) is the fluorescence detection technique of extensive air showers (EAS).

FAMOUS will be a small fluorescence telescope, instrumented with silicon photomultipliers (SiPMs) as highly-sensitive light detectors. In comparison to photomultiplier tubes, SiPMs promise to have a higher photon-detection-efficiency. An increase in sensitivity allows to detect more distant and lower energy showers which will contribute to an enrichment of the current understanding of the development of EAS and the chemical composition of UHECRs.

The refractive optic of the air  fluorescence telescope prototype FAMOUS consists of a big Fresnel lens with a diameter of D = 510 mm equal to the focal length f. To match a fi eld of view of 1.5 ° x 1.5 ° per pixel, each pixel is composed by a Winston cone, i.e. a light concentrator, and a Hamamatsu S10985-100C array of four 3 x 3 mm² SiPMs. The Winston cone has an entrance radius of r1 = 6.7 mm. The focal plane of FAMOUS features 64 hexagonally arranged pixels in total.

Detailed detector-response-simulations demonstrated that the current design of FAMOUS might be capable of detecting extensive air showers even in an urbanised, bright environment. Considering the small aperture diameter of FAMOUS and the moderate sensitivity of currently available SiPMs, the energy and spatial range, which can be covered with FAMOUS, is quite promising. FAMOUS is currently in construction.

Screenshot of the Geant4 visualisation
Monte Carlo event display of Famous for a 4 km distant 1e18 eV air shower
Simulated trigger probability of Famous for air showers

Collaboration

RWTH Aachen

  • SiPM characterisation studies
  • SiPM simulation
  • Winston cones
  • Raytracing simulations with Geant4
  • ...

 

Auger @ LIP

  • SiPM characterisation studies
  • Readout electronics
  • Focal plane cooling
  • Winston cones

 

Universidad de Granada

  • SiPM characterisation studies

 

Publications

  • T. Niggemann, P. Assis, P. Brogueira, A. Bueno, H.M. Eichler, M. Ferreira, T. Hebbeker, M. Lauscher, L. Mendes, L. Middendorf, S. Navas, C. Peters, M. Pimenta, A. Ruiz, J. Schumacher, M. Stephan, "Status of the Silicon Photomultiplier Telescope FAMOUS for the Fluorescence Detection of UHECRs", ICRC (2013) (pdf)
  • M. Lauscher, P. Assis, P. Brogueira, M. Ferreira, T. Hebbeker, L. Mendes, C. Meurer, L. Middendorf, T. Niggemann, M. Pimenta, J. Schumacher, M. Stephan, "FAMOUS: A prototype silicon-photomultiplier telescope for the fluorescence detection of ultra-high-energy cosmic rays", SPIE 8460 (2012) (doi, ps)
  • M. Stephan, P. Assis, P. Brogueira, M. Ferreira, T. Hebbeker, M. Lauscher, L. Mendes, C. Meurer, L. Middendorf, T. Niggemann, M. Pimenta, J. Schumacher, "FAMOUS: A prototype silicon-photomultiplier telescope for the fluorescence detection of ultra-high-energy cosmic rays", UHECR 2012 (2012) (to be published)
  • Stephan, M., Hebbeker, T., Lauscher, M., Meurer, C., L. Middendorf, Niggemann, T., and Schumacher, J., "The Optics and Detector-Simulation of the Air Fluorescence Telescope FAMOUS for the Detection of Cosmic Rays", SPIE 8444 (2012) (doi, pdf)
  • P. Assis, P. Brogueira, O. Catalano, M. Ferreira, T. Hebbeker, M. Lauscher, E. Lorenz, L. Mendes, C. Meurer, R. Mirzoyan, T. Niggemann, M. Pimenta, P. Rodrigues, T. Schweizer, M. Stephan, M. Teshima, "R&D for future SiPM cameras for Fluorescence and Cherenkov Telescope", ICRC 2011, HE1.4 0234 (2011) (pdf)
  • Stephan, M., Hebbeker, T., Lauscher, M., Meurer, C., Niggemann, T., and Schumacher, J., "Future use of silicon photomultipliers for the fluorescence detection of ultra-high-energy cosmic rays", SPIE 8155, 81551B (2011) (doi, pdf)

Master-Theses

  • Lauscher, M., "Characterization Studies of Silicon Photomultipliers for the Detection of Fluorescence Light from Extensive Showers," (2012) (pdf)
  • Niggemann, T., "New Telescope Design with Silicon Photomultipliers for Fluorescence Light Detection of Extensive Air Showers," (2012) (pdf)

Contact

For any further information please contact: Niggemann, Tim, M.Sc.

Abschlußinformationen