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Title: HAWC (High Altitude Water Cherenkov) Observatory for Surveying the TeV Sky

Abstract

The HAWC observatory is a proposed, large field of view ({approx}2 sr), high duty cycle (>95%) TeV gamma-ray detector which uses a large pond of water (150 m x 150 m) located at 4300 m elevation. The pond contains 900 photomultiplier tubes (PMTs) to observe the relativistic particles and secondary gamma lays in extensive air showers. This technique has been used successfully by the Milagro observatory to detect known, as well as new, TeV sources. The PMTs and much of the data acquisition system of Milagro will be reused for HAWC, resulting in a cost effective detector ({approx}6M$) that can be built quickly in 2-3 years. The improvements of HAWC will result in {approx}15 times the sensitivity of Milagro. HAWC will survey 2{pi} sr of the sky every day with a sensitivity of the Crab flux at a median energy of 1 TeV. After five years of operation half of the sky will be surveyed to 20 mCrab. This sensitivity will likely result in the discovery of new sources as well as allow the identification of which GLAST sources extend to higher energies.

Authors:
 [1]
  1. Los Alamos National Lab, Los Alamos, NM 87545 (United States)
Publication Date:
OSTI Identifier:
21067271
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 921; Journal Issue: 1; Conference: 1. GLAST symposium, Stanford, CA (United States), 5-8 Feb 2007; Other Information: DOI: 10.1063/1.2757390; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA). HAWC Collaboration; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CATALOGS; CHERENKOV COUNTERS; COSMIC PHOTONS; DATA ACQUISITION SYSTEMS; EXTENSIVE AIR SHOWERS; GAMMA DETECTION; GAMMA RADIATION; OPERATION; PHOTOMULTIPLIERS; PHOTON EMISSION; RELATIVISTIC RANGE; SENSITIVITY; TELESCOPE COUNTERS; TEV RANGE; WATER

Citation Formats

Dingus, Brenda L. HAWC (High Altitude Water Cherenkov) Observatory for Surveying the TeV Sky. United States: N. p., 2007. Web. doi:10.1063/1.2757390.
Dingus, Brenda L. HAWC (High Altitude Water Cherenkov) Observatory for Surveying the TeV Sky. United States. doi:10.1063/1.2757390.
Dingus, Brenda L. Thu . "HAWC (High Altitude Water Cherenkov) Observatory for Surveying the TeV Sky". United States. doi:10.1063/1.2757390.
@article{osti_21067271,
title = {HAWC (High Altitude Water Cherenkov) Observatory for Surveying the TeV Sky},
author = {Dingus, Brenda L.},
abstractNote = {The HAWC observatory is a proposed, large field of view ({approx}2 sr), high duty cycle (>95%) TeV gamma-ray detector which uses a large pond of water (150 m x 150 m) located at 4300 m elevation. The pond contains 900 photomultiplier tubes (PMTs) to observe the relativistic particles and secondary gamma lays in extensive air showers. This technique has been used successfully by the Milagro observatory to detect known, as well as new, TeV sources. The PMTs and much of the data acquisition system of Milagro will be reused for HAWC, resulting in a cost effective detector ({approx}6M$) that can be built quickly in 2-3 years. The improvements of HAWC will result in {approx}15 times the sensitivity of Milagro. HAWC will survey 2{pi} sr of the sky every day with a sensitivity of the Crab flux at a median energy of 1 TeV. After five years of operation half of the sky will be surveyed to 20 mCrab. This sensitivity will likely result in the discovery of new sources as well as allow the identification of which GLAST sources extend to higher energies.},
doi = {10.1063/1.2757390},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 921,
place = {United States},
year = {2007},
month = {7}
}