Allard 2009 水Cherenkov探测器探测伽玛暴

主要内容:
能段10GeV - 1TeV. 叫做The Large Aperture GRB Observatory (LAGO).
和羊八井原理类似, 但灵敏度更高.

精彩摘抄:


文章信息:

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Title:		Water Cherenkov Detectors response to a Gamma Ray Burst in the Large Aperture GRB Observatory
Authors:		Allard, D.; Alvarez, C.; Asorey, H.; Barros, H.; Bertou, X.; Castillo, M.; Chirinos, J. M.; De Castro, A.; Flores, S.; Gonzalez, J.; Gomez Berisso, M.; Grajales, J.; Guada, C.; Guevara Day, W. R.; Ishitsuka, J.; Lopez, J. A.; Martinez, O.; Melfo, A.; Meza, E.; Loza, P. Miranda; Moreno Barbosa, E.; Murrugarra, C.; Nunez, L. A.; Otiniano Ormachea, L. J.; Perez, G.; Perez, Y.; Ponce, E.; Quispe, J.; Quintero, C.; Rivera, H.; Rosales, M.; Rovero, A. C.; Saavedra, O.; Salazar, H.; Tello, J. C.; Ticona Peralda, R.; Varela, E.; Velarde, A.; Villasenor, L.; Wahl, D.; Zamalloa, M. A.
Publication:		eprint arXiv:0906.0820
Publication Date:		06/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Comment:		5 pages, proceeding of the 31st ICRC 2009
Bibliographic Code:		2009arXiv0906.0820A

Abstract

In order to characterise the behaviour of Water Cherenkov Detectors (WCD) under a sudden increase of 1 GeV - 1 TeV background photons from a Gamma Ray Burst (GRB), simulations were conducted and compared to data acquired by the WCD of the Large Aperture GRB Observatory (LAGO). The LAGO operates arrays of WCD at high altitude to detect GRBs using the single particle technique. The LAGO sensitivity to GRBs is derived from the reported simulations of the gamma initiated particle showers in the atmosphere and the WCD response to secondaries.

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· arXiv e-print (arXiv:0906.0816)

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Title:		The Large Aperture GRB Observatory
Authors:		Allard, D.; Alvarez, C.; Asorey, H.; Barros, H.; Bertou, X.; Castillo, M.; Chirinos, J. M.; De Castro, A.; Flores, S.; Gonzalez, J.; Gomez Berisso, M.; Grajales, J.; Guada, C.; Guevara Day, W. R.; Ishitsuka, J.; Lopez, J. A.; Martinez, O.; Melfo, A.; Meza, E.; Loza, P. Miranda; Moreno Barbosa, E.; Murrugarra, C.; Nunez, L. A.; Otiniano Ormachea, L. J.; Perez, G.; Perez, Y.; Ponce, E.; Quispe, J.; Quintero, C.; Rivera, H.; Rosales, M.; Rovero, A. C.; Saavedra, O.; Salazar, H.; Tello, J. C.; Ticona Peralda, R.; Varela, E.; Velarde, A.; Villasenor, L.; Wahl, D.; Zamalloa, M. A.
Publication:		eprint arXiv:0906.0816
Publication Date:		06/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Comment:		4 pages, proceeding of 31st ICRC 2009
Bibliographic Code:		2009arXiv0906.0816A

Abstract

The Large Aperture GRB Observatory (LAGO) is aiming at the detection of the high energy (around 100 GeV) component of Gamma Ray Bursts, using the single particle technique in arrays of Water Cherenkov Detectors (WCD) in high mountain sites (Chacaltaya, Bolivia, 5300 m a.s.l., Pico Espejo, Venezuela, 4750 m a.s.l., Sierra Negra, Mexico, 4650 m a.s.l). WCD at high altitude offer a unique possibility of detecting low gamma fluxes in the 10 GeV - 1 TeV range. The status of the Observatory and data collected from 2007 to date will be presented.

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· arXiv e-print (arXiv:0906.0814)

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Title:		Operating Water Cherenkov Detectors in high altitude sites for the Large Aperture GRB Observatory
Authors:		Allard, D.; Alvarez, C.; Asorey, H.; Barros, H.; Bertou, X.; Castillo, M.; Chirinos, J. M.; De Castro, A.; Flores, S.; Gonzalez, J.; Gomez Berisso, M.; Grajales, J.; Guada, C.; Guevara Day, W. R.; Ishitsuka, J.; Lopez, J. A.; Martinez, O.; Melfo, A.; Meza, E.; Loza, P. Miranda; Moreno Barbosa, E.; Murrugarra, C.; Nunez, L. A.; Otiniano Ormachea, L. J.; Perez, G.; Perez, Y.; Ponce, E.; Quispe, J.; Quintero, C.; Rivera, H.; Rosales, M.; Rovero, A. C.; Saavedra, O.; Salazar, H.; Tello, J. C.; Ticona Peralda, R.; Varela, E.; Velarde, A.; Villasenor, L.; Wahl, D.; Zamalloa, M. A.
Publication:		eprint arXiv:0906.0814
Publication Date:		06/2009
Origin:		ARXIV
Keywords:		Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics
Comment:		5 pages, proceeding of 31st ICRC 2009
Bibliographic Code:		2009arXiv0906.0814A

Abstract

Water Cherenkov Detectors (WCD) are efficient detectors for detecting GRBs in the 10 GeV - 1 TeV energy range using the single particle technique, given their sensitivity to low energy secondary photons produced by high energy photons when cascading in the atmosphere. The Large Aperture GRB Observatory (LAGO) operates arrays of WCD in high altitude sites (above 4500 m a.s.l.) in Bolivia, Mexico and Venezuela, with planned extension to Peru. Details on the operation and stability of these WCD in remote sites with high background rates of particles will be detailed, and compared to simulations. Specific issues due to operation at high altitude, atmospheric effects and solar activity, as well as possible hardware enhancements will also be presented.

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