Experimental results on the optimum spacing of stereoscopic imaging atmospheric Cherenkov telescopes

Hofmann, Werner
June 2000
AIP Conference Proceedings;2000, Vol. 515 Issue 1, p333
Academic Journal
For stereoscopic systems of imaging atmospheric Cherenkov telescopes (IACTs), a key parameter to optimize the sensitivity for VHE γ-ray point sources is the intertelescope spacing. Using pairs of telescopes of the HEGRA IACT system, the sensitivity of two-telescope stereo IACT systems is studied as a function of the telescope spacing, ranging from 70 m to 140 m. Data taken during the 1997 outburst of Mrk 501 are used to evaluate both the detection rates before cuts, and the sensitivity for weak signals after cuts to optimize the significance of signals. © 2000 American Institute of Physics.


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