2000AIPC..510..642D
Milagro: A TeV gamma-ray monitor of the Northern Hemisphere Sky
Dingus, B. L. ( University of Utah, Salt Lake City, Utah 84112 ); Atkins, R. ( University of Utah, Salt Lake City, Utah 84112 ); Benbow, W. ( University of California, Santa Cruz, California 95064 ); Berley, D. ( University of Maryland, College Park, Maryland 20742 ); Chen, M. L. ( University of Maryland, College Park, Maryland 20742 ); Coyne, D. G. ( University of California, Santa Cruz, California 95064 ); Dorfan, D. E. ( University of California, Santa Cruz, California 95064 ); Ellsworth, R. W. ( George Mason University, Fairfax, Virginia 22030 ); Evans, D. ( University of Maryland, College Park, Maryland 20742 ); Falcone, A. ( University of New Hampshire, Durham, New Hampshire 03824 ); Fleysher, L. ( New York University, New York, New York 10003 ); Fleysher, R. ( New York University, New York, New York 10003 ); Gisler, G. ( Los Alamos National Laboratory, Los Alamos, New Mexico 87545 ); Goodman, J. A. ( University of Maryland, College Park, Maryland 20742 ); Haines, T. J. ( Los Alamos National Laboratory, Los Alamos, New Mexico 87545 ); Hoffman, C. M. ( Los Alamos National Laboratory, Los Alamos, New Mexico 87545 ); Hugenberger, S. ( University of California, Irvine, California 92697 ); Kelley, L. A. ( University of California, Santa Cruz, California 95064 ); Leonor, I. ( University of California, Irvine, California 92697 ); McConnell, M. ( University of New Hampshire, Durham, New Hampshire 03824 ); McCullough, J. F. ( University of California, Santa Cruz, California 95064 ); McEnery, J. E. ( University of Utah, Salt Lake City, Utah 84112 ); Miller, R. S. ( Los Alamos National Laboratory, Los Alamos, New Mexico 87545; University of New Hampshire, Durham, New Hampshire 03824 ); Mincer, A. I. ( New York University, New York, New York 10003 ); Morales, M. F. ( University of California, Santa Cruz, California 95064 ); Nemethy, P. ( New York University, New York, New York 10003 ); Ryan, J. M. ( University of New Hampshire, Durham, New Hampshire 03824 ); Shen, B. ( University of California, Riverside, California 92521 ); Shoup, A. ( University of California, Irvine, California 92697 ); Sinnis, C. ( Los Alamos National Laboratory, Los Alamos, New Mexico 87545 ); Smith, A. J. ( University of California, Riverside, California 92521 ); Sullivan, G. W. ( University of Maryland, College Park, Maryland 20742 ); Tumer, T. ( University of California, Riverside, California 92521 ); Wang, K. ( University of California, Riverside, California 92521 ); Wascko, M. O. ( University of California, Riverside, California 92521 ); Westerhoff, S. ( University of California, Santa Cruz, California 95064 ); Williams, D. A. ( University of California, Santa Cruz, California 95064 ); Yang, T. ( University of California, Santa Cruz, California 95064 ); Yodh, G. B. ( University of California, Irvine, California 92697 ) and 29 coauthors show affiliations
THE FIFTH COMPTON SYMPOSIUM. AIP Conference Proceedings, Volume 510, pp. 642-645 (2000).
Published in Apr 2000
A new type of very high energy (> a few 100 GeV) gamma-ray observatory, Milagro, has been built with a large field of view of >1 steradian and nearly 24 hours/day operation. Milagrito, a prototype for Milagro, was operated from February 1997 to May 1998. During the summer of 1998, Milagrito was dismantled and Milagro was built. Both detectors use a 80 m×60 m×8 m pond of water in which a 3 m×3 m grid of photomultiplier tubes detects the Cherenkov light produced in the water by the relativistic particles in extensive air showers. Milagrito was smaller and had only one layer of photomultipliers, but allowed the technique to be tested. Milagrito observations of the Moon's shadow and Mrk 501 are consistent with the Monte Carlo prediction of the telescopes parameters, such as effective area and angular resolution. Milagro is larger and consists of two layers of photomultiplier tubes. The bottom layer detects penetrating particles that are used to reject the background of cosmic-ray initiated showers. .
Keywords:
Free Keywords: 95.45.+i; 95.55.Ka; 95.85.Pw; Observatories and site testing; X- and gamma-ray telescopes and instrumentation; gamma-ray
PACS Codes: 95.45.+i; 95.55.Ka; 95.85.Pw
PACS: Observatories and site testing; X- and gamma-ray telescopes and instrumentation; gamma-ray
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