| Title: |
Detection of Cherenkov light from air showers with Geiger-APDs |
| Authors: |
Otte, A. N., Britvitch, I., Biland, A., Goebel, F., Lorenz, E., Pauss, F., Renker, D., Roeser, U., Schweizer, T. |
| Source: |
Nucl.Instrum.Meth.A610:415-418,2009 |
| Publication Year: |
2007 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics |
| More Details: |
We have detected Cherenkov light from air showers with Geiger-mode APDs (G-APDs). G-APDs are novel semiconductor photon-detectors, which offer several advantages compared to conventional photomultiplier tubes in the field of ground-based gamma-ray astronomy. In a field test with the MAGIC telescope we have tested the efficiency of a G-APD / light catcher setup to detect Cherenkov light from air showers. We estimate a detection efficiency, which is 60% higher than the efficiency of a MAGIC camera pixel. Ambient temperature dark count rates of the tested G-APDs are below the rates of the night sky light background. According to these recent tests G-APDs promise a major progress in ground-based gamma-ray astronomy.
Comment: 4 pages, 5 figures, to appear in the proceedings of the 30th International Cosmic Ray Conference, Merida, July 2007 |
| Document Type: |
Working Paper |
| DOI: |
10.1016/j.nima.2009.05.083 |
| Access URL: |
http://arxiv.org/abs/0712.1592 |
| Accession Number: |
edsarx.0712.1592 |
| Database: |
arXiv |
