The status of the Whipple 10m GRANITE III upgrade program

Finley, J. P.; Bond, I. H.; Bradbury, S. M.; Breslin, A. C.; Buckley, J. H.; Burdett, A. M.; Carson, M.; Carter-Lewis, D. A.; Catanese, M.; Cawley, M. F.; Dunlea, S.; D’Vali, M.; Fegan, D. J.; Fegan, S. J.; Gaidos, J. A.; Hall, T. A.; Hillas, A. M.; Horan, D.; Knapp, J.; Krennrich, F.
June 2000
AIP Conference Proceedings;2000, Vol. 515 Issue 1, p301
Academic Journal
The Whipple Collaboration has been carrying out an upgrade program, GRANITE III, on the 10m telescope atop Mt. Hopkins. The 3 year program, 1996 through 1999, has involved a large field-of-view camera, a hardware pattern recognition trigger, and finally a small pixel camera. Results of the first and second stage of the program indicate that a large field-of-view yield an increased collection area for cosmic-ray triggers and the hardware pattern trigger reduces the energy threshold of the telescope by greatly suppressing night sky accidental triggers over a simple multiplicity coincidence trigger. The final phase of the program, being completed during the summer and fall of 1999, will be the installation of a small pixel camera. The pixel size of ∼0°.12 will yield the lowest threshold energy at which the 10 m Whipple telescope has ever operated. © 2000 American Institute of Physics.


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