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- icrc2007@icrc2007.unam.mx
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Study of photo-sensor candidates for the MEMSTEL project
Speakers
- Dr. Moo Hyun LEE
Primary authors
- Dr. Moo Hyun LEE (Institute for Physical Science and Technology, University of Maryland)
Co-authors
- L. LUTZ (Institute for Physical Science and Technology, University of Maryland)
- A. MALININ (Institute for Physical Science and Technology, University of Maryland)
- K. H. MOON (Dept. of Physics, Ewha Womans University)
- G. W. NA (Dept. of Physics, Ewha Womans University)
- S. NAM (Dept. of Physics, Ewha Womans University)
- S. J. OH (Dept. of Physics, Ewha Womans University)
- I. H. PARK (Dept. of Physics, Ewha Womans University)
- J. H. PARK (Dept. of Physics, Ewha Womans University)
- Y. S. PARK (School of Physics and Astronomy, Seoul National University)
- H. J. RYU (School of Physics and Astronomy, Seoul National University)
- E. S. SEO (Dept. of Physics and IPST, University of Maryland)
- P. WALOPLE (Institute for Physical Science and Technology, University of Maryland)
- J. YANG (Dept. of Physics, Ewha Womans University)
- B. W. YOO (School of Electrical Engineering and Computer Science, Seoul National University)
- J. H. YOO (Institute for Physical Science and Technology, University of Maryland)
- Y. S. YOON (Dept. of Physics and IPST, University of Maryland)
- H. S. AHN (Institute for Physical Science and Technology, University of Maryland)
- S. ARTIKOVA (Dept. of Physics, Ewha Womans University)
- O. GANEL (Institute for Physical Science and Technology, University of Maryland)
- G. GARIPOV (DV Skobeltsyn Institute of Nuclear Physics, Moscow State University)
- J. H. HAN (Institute for Physical Science and Technology, University of Maryland)
- J. A. JEON (Dept. of Physics, Ewha Womans University)
- B. KHRENOV (DV Skobeltsyn Institute of Nuclear Physics, Moscow State University)
- J. E. KIM (Dept. of Physics, Ewha Womans University)
- M. S. KIM (School of Electrical Engineering and Computer Science, Seoul National University)
- Y. K. KIM (School of Electrical Engineering and Computer Science, Seoul National University)
- P. KLIMOV (DV Skobeltsyn Institute of Nuclear Physics, Moscow State University)
- J. LEE (Dept. of Physics, Ewha Womans University)
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Abstract content
The MEMSTEL (Micro Electro Mechanical Systems Space Telescope) is a space based experiment being designed to investigate the origin of extreme energy cosmic-ray (EECR) particles above 5 x 10^19 eV. The fluorescent light generated in extensive air showers (EAS) when EECRs hit the atmosphere can be detected from low Earth orbit. MEMSTEL will implement a novel idea of a tracking mirror based on semiconductor MEMS technology. The light signal will be focused on a relatively small area of readout photo-sensors using a tracking mirror. One candidate for MEMSTEL photo-sensors is the conventional multi- anode PMT. Recently, a new type of photo-sensor was developed for particle detector readouts - the silicon photo multiplier (Si-PM). This compact photo- sensor is comprised of a large array of micro-cells operating in a limited Geiger mode, and provides high gain (~10^6) with low operating voltage (~50 V). The compact design, light weight and low power consumption make this device an excellent photon-detector candidate for space-based experiments. In this paper, we report on the comparative performance of a 2 x 2 mm^2 Si-PM, a conventional PMT, and a Hybrid Photo Diode (HPD) in lab tests, reading out light generated by Light Emitting Diodes (LED) as well as by scintillating fibers excited with a radioactive source.
Reference
Proceedings of the 30th International Cosmic Ray Conference; Rogelio Caballero, Juan Carlos D'Olivo, Gustavo Medina-Tanco, Lukas Nellen, Federico A. Sánchez, José F. Valdés-Galicia (eds.); Universidad Nacional Autónoma de México, Mexico City, Mexico, 2008; Vol. 5 (HE part 2), pages 981-984
