TITLE

Gamma-hadron separation based on Cˇerenkov photon arrival time studies

AUTHOR(S)
Chitnis, V. R.; Bhat, P. N.
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 510 Issue 1, p651
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have carried out systematic Monte Carlo simulation studies of the timing information of Cˇerenkov photons produced by VHE gamma rays and hadronic primaries. We have investigated several measurable parameters such as radius of the shower front, pulse shape parameters (rise time, decay time and FWHM) and arrival time jitter of Cˇerenkov photons. The efficiency of these parameters to discriminate between gamma ray and hadronic showers has been studied in terms of quality factor. This study has been carried out for vertical as well as inclined showers and for various altitudes of observation. Among the parameters considered here, Cˇerenkov pulse decay time and relative arrival time jitter of Cˇerenkov photons are found to be particularly useful. © 2000 American Institute of Physics.
ACCESSION #
6029712

 

Related Articles

  • Design of a Cherenkov telescope for the measurement of PCR omposition above 1 PeV. Borisov, A. S.; Galkin, V. I. // EPJ Web of Conferences;2013, Issue 52, p11001-p.1 

    The problem of PC.'R Composition at super high energies is far from being solved. EAS Cherenkov light spatial-angular distribution (CL SAD) can yield important information on the primary mass. In order to use EAS CL SAD for the study of PC.'R composition one needs a set of imaging telescopes...

  • Towards an optimized design for the Cherenkov Telescope Array. Stamatescu, V.; Becherini, Y.; Bernlöhr, K.; Carmona, E.; Colin, P.; Farnier, C.; Gerard, L.; Hinton, J. A.; Khélifi, B.; Komin, N.; Lamanna, G.; Lenain, J.-P.; Maier, G.; Moralejo, A.; Naumann, C. L.; Parsons, R. D.; Di Pierro, F.; Prokoph, H.; Vorobiov, S.; CTA Consortium // AIP Conference Proceedings;Dec2012, Vol. 1505 Issue 1, p758 

    The Cherenkov Telescope Array (CTA) is a future instrument for very-high-energy (VHE) gamma-ray astronomy that is expected to deliver an order of magnitude improvement in sensitivity over existing instruments. In order to meet the physics goals of CTA in a cost-effective way, Monte Carlo...

  • RESPONSE OF COOLED PWO SCINTILLATORS TO LOW-ENERGY GAMMA-RAYS AND ITS IMPORTANCE FOR SPECTROSCOPIC MEASUREMENTS OF CHARMONIUM WITH PANDA. MELNYCHUK, D.; ZWIEGLINSKI, B. // Acta Physica Polonica B;Feb2010, Vol. 41 Issue 2, p291 

    Identification of π0 and η mesons by detecting both γ-rays from their decay is a prerequisite for suppressing undesired background in studies of photon transitions between the states of charmonium. To achieve this goal the detection threshold of the PANDA electromagnetic calorimeter...

  • Advanced analysis and event reconstruction for the CTA Observatory. Becherini, Y.; Khélifi, B.; Pita, S.; Punch, M.; CTA Consortium // AIP Conference Proceedings;Dec2012, Vol. 1505 Issue 1, p769 

    The planned Cherenkov Telescope Array (CTA) is a future observatory for very-high-energy (VHE) gamma-ray astronomy composed of one site per hemisphere [1]. It aims at 10 times better sensitivity, a better angular resolution and wider energy coverage than current installations such as H.E.S.S.,...

  • The CLUE experiment running with 8 telescopes; observations of gamma sources and runs on Moon. Bastieri, D.; Bartoli, B.; Bigongiari, C.; Biral, R.; Ciocci, M. A.; Cosulich, D.; Cresti, M.; Kartashov, D.; Liello, F.; Malakov, N.; Mariotti, M.; Marsella, G.; Menzione, A.; Paoletti, R.; Parlavecchio, G.; Peruzzo, L.; Piccioli, A.; Rosso, F.; Sacco, R.; Saggion, A. // AIP Conference Proceedings;2000, Vol. 515 Issue 1, p436 

    The CLUE experiment is presently an array of 8 telescopes detecting UV Cherenkov light from atmospheric showers. Preliminary results from the last 2 years of data taking are shown. 1998 campaigns on Markarian 421, Markarian 501 and the Crab Nebula. The 1998–1999 high-statistics campaign...

  • The AGILE gamma-ray astronomy mission. Mereghetti, S.; Barbiellini, G.; Budini, G.; Caraveo, P.; Costa, E.; Cocco, V.; Di Cocco, G.; Feroci, M.; Labanti, C.; Longo, F.; Morelli, E.; Morselli, A.; Pellizzoni, A.; Perotti, F.; Picozza, P.; Prest, M.; Soffitta, P.; Soli, L.; Tavani, M.; Vallazza, E. // AIP Conference Proceedings;2000, Vol. 515 Issue 1, p467 

    We describe the AGILE gamma-ray astronomy satellite which has recently been selected as the first Small Scientific Mission of the Italian Space Agency. With a launch in 2002, AGILE will provide a unique tool for high-energy astrophysics in the 30 MeV–50 GeV range before GLAST. Despite the...

  • A Monte Carlo simulation of the peak counts bias and the slow riser bias in the BATSE trigger. Johnson, Audress; Meegan, Charles; Hakkila, Jon // AIP Conference Proceedings;2000, Vol. 526 Issue 1, p53 

    We have investigated two biases in the BATSE 1024 ms burst trigger using Monte Carlo simulations of burst time histories. The peak counts bias, which arises from statistical fluctuations in the count rates, results in an average overestimate of the on-board peak rate by ∼8%. The slow riser...

  • Population studies of the gamma-ray sources. Chen, A. W.; Mereghetti, S.; Pellizzoni, A.; Tavani, M.; Vercellone, S. // AIP Conference Proceedings;2001, Vol. 587 Issue 1, p663 

    We present the status of ongoing modelling of the populations of the EGRET point sources. To analyze the two-dimenstional distribution, we wrote Monte Carlo simulations to produce model populations. We compared models containing an isotropic component and one or two galactic components to the...

  • First results of a study of TeV emission from GRBs in Milagrito. Miller, R. S.; Atkins, R.; Benbow, W.; Berley, D.; Chen, M. L.; Coyne, D. G.; Dingus, B. L.; Dorfan, D. E.; Ellsworth, R. W.; Evans, D.; Falcone, A.; Fleysher, L.; Fleysher, R.; Gisler, G.; Goodman, J. A.; Haines, T. J.; Hoffman, C. M.; Hugenberger, S.; Kelley, L. A.; Leonor, I. // AIP Conference Proceedings;2000, Vol. 510 Issue 1, p543 

    Milagrito, a detector sensitive to γ-rays at TeV energies, monitored the northern sky during the period February 1997 through May 1998. With a large field of view and high duty cycle, this instrument was used to perform a search for TeV counterparts to γ-rays bursts. Within the Milagrito...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics