Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment

ZHOU Yuan; HE Hui-Hai; MU Jun

Chinese Physics C> 2005, Vol. 29> Issue(8) : 787-792

Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment

Institute of High Energy Physics,CAS,Beijing 100049,China2 Department of Physics,Yunnan University,Kunming 650091,China

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Abstract：
In the YBJ-ARGO experiment, the hit time of detector-units can’t be calibrated manually due to the massive number of detector-units. Two methods of off-line calibration, named concentric circle method and characteristic plane method, are developed. Their calibration precision is estimated using the simulation data and the data of the 50m2 RPC carpet. It shows that concentric circle method can be used to calibrate the detector-units which have the same distance from the centre of the array，while the characteristic plane method, which has a good precision, is suitable for off-line calibration of all the detector-units, especially, under different experiment conditions.

References

[1]

. ARGO Collaborat ion.Astroparticle Physics with ARGO Proposal, 1996;ARGO Collaborat ion.Addendum to the ARGO..YBJ Proposal, 19982. LIU Kun,HEHui..Hai et al. HEPNP, 2004, 28(9) : 914-917(in Chinese)(刘琨，何会海等，高能物理与核物理，2004,28(9):914-917)3. Capdevielle J N et al . KfK Report 1992, No. 49984. Mart ello D et al. ARGO Detector with GEANT3 package, 20005. LU Hong et al. HEPNP, 1999, 23: 417-424(in Chinese)(刘琨，何会海等，高能物理与核物理，2004,28(9):914-917)6. HE Hui..Hai et al.HEPNP, 2001, 25(1) : 79-85(in Chinese)(何会海等.高能物理与核物理，2001,25(1):79-85)7. QU Ruo..Fei et al.HEPNP, 2001, 25(5) : 371-376(in Chinese)(瞿若飞等.高能物理与核物理，2001,25(5):371-376)

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ZHOU Yuan, HE Hui-Hai and MU Jun. Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment[J]. Chinese Physics C, 2005, 29(8): 787-792.

ZHOU Yuan, HE Hui-Hai and MU Jun. Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment[J]. Chinese Physics C, 2005, 29(8): 787-792. shu

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Received: 2004-12-28
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Monte Carlo Study of Methods for Off-Line Calibration of ARGO-YBJ Experiment

Corresponding author: ZHOU Yuan,

Institute of High Energy Physics,CAS,Beijing 100049,China2 Department of Physics,Yunnan University,Kunming 650091,China

Received Date: 2004-12-28
Accepted Date: 1900-01-01
Available Online: 2005-08-05

Abstract: In the YBJ-ARGO experiment, the hit time of detector-units can’t be calibrated manually due to the massive number of detector-units. Two methods of off-line calibration, named concentric circle method and characteristic plane method, are developed. Their calibration precision is estimated using the simulation data and the data of the 50m2 RPC carpet. It shows that concentric circle method can be used to calibrate the detector-units which have the same distance from the centre of the array，while the characteristic plane method, which has a good precision, is suitable for off-line calibration of all the detector-units, especially, under different experiment conditions.