Performances of Resistive Plate Chamber Filled with Freon Rich Mixture

CHEN Shan-Qi; LI Cheng; RUAN Li-Juan; CHEN Hong-Fang; SHAO Ming; YANG Yi

Chinese Physics C> 2004, Vol. 28> Issue(10) : 1099-1103

Performances of Resistive Plate Chamber Filled with Freon Rich Mixture

Department of Modern Physics,University of Science & Technology of China,Hefei 230026,China

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Abstract：
A prototype of Resistive Plate Chamber with effective area of 490mm×490mm was built. The efficiency,output charge and time resolution were measured by cosmic muons when the detector was operated with F134a rich mixture in avalanche mode. The efficiency is higher than 95% with 2kV long efficiency plateau,the noise counting rate is less than 0.2 Hz/cm 2 and the time resolution reaches minimum when detector works in saturated avalanche mode. Relevant simulations and calculations were presented in this paper. The performances of RPC working in streamer mode were also tested.

References

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. Abe K, Azuchi S et al. IEEE Trans. Nucl. Sci., 2000, 47(6): 17482. LI Cheng et al . HEP NP, 2001, 25(9): 933 (in Chinese)(李澄等. 高能物理与核物理, 2001, 25(9): 9333. BNL/Star Collaboration, Nucl-ex/0309012(03)4. Abbrescia M et al. Nucl. Instrum. Methods., 1997, A398: 1735. RUAN Li-Juan et al. HEP NP, 2003, 27(8): 712(in Chinese)(阮丽娟等. 高能物理与核物理, 2003, 27(8): 7126. Gatti E et al. Nucl. Instrum. Methods., 1982, 193: 651

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CHEN Shan-Qi, LI Cheng, RUAN Li-Juan, CHEN Hong-Fang, SHAO Ming and YANG Yi. Performances of Resistive Plate Chamber Filled with Freon Rich Mixture[J]. Chinese Physics C, 2004, 28(10): 1099-1103.

CHEN Shan-Qi, LI Cheng, RUAN Li-Juan, CHEN Hong-Fang, SHAO Ming and YANG Yi. Performances of Resistive Plate Chamber Filled with Freon Rich Mixture[J]. Chinese Physics C, 2004, 28(10): 1099-1103. shu

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Received: 2004-01-15
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

Performances of Resistive Plate Chamber Filled with Freon Rich Mixture

Corresponding author: LI Cheng,

Department of Modern Physics,University of Science & Technology of China,Hefei 230026,China

Received Date: 2004-01-15
Accepted Date: 1900-01-01
Available Online: 2004-10-05

Abstract: A prototype of Resistive Plate Chamber with effective area of 490mm×490mm was built. The efficiency,output charge and time resolution were measured by cosmic muons when the detector was operated with F134a rich mixture in avalanche mode. The efficiency is higher than 95% with 2kV long efficiency plateau,the noise counting rate is less than 0.2 Hz/cm 2 and the time resolution reaches minimum when detector works in saturated avalanche mode. Relevant simulations and calculations were presented in this paper. The performances of RPC working in streamer mode were also tested.