A high time resolution MRPC with spatial resolution

LI Cheng; SUN Yong-Jie; SHAO Ming; CHEN Hong-Fang

Chinese Physics C> 2006, Vol. 30> Issue(7) : 660-664

A high time resolution MRPC with spatial resolution

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

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Abstract：
A position-sensitive MRPC prototype with high time resolution was developed. This MRPC has 10×220μm gaps with the active area of 20cm×20cm. A front-end electronics based on NINO ASIC was used. The NINO ASIC can transform the input charge to the width of output signal for the Time-Over-Threshold (TOT) measurement by using High Performance TDC (HPTDC). With the difference of transmit time and distribution of plus amplitude, we can get the two-dimension position information. The beam test result shows a spatial resolution of 4.5mm along the readout pads and 1.6mm perpendicular to the readout pads, espectively. The time resolution is about 63ps and the detection efficiency is over 95%.

References

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. The STAR TOF Collaboration. Proposal for a Large AreaTime of Flight System for STAR, 20032. The STAR Collaboration. Phys. Lett., 2005, B616: 83. Riegler W, Lippmann C, Veenhof R. Nucl. Instrum. Methods, 2003, A500: 1444. WilliamsM C S. Nucl. Instrum. Methods, 2004, A525: 1685. CERN/LHCC 2002-016 Addendum to ALICE TDR 8, 20026. Anghinol F, Jarron P, Martemiyanov A N et al. Nucl.Instrum. Methods, 2004, A533: 1837. Akindinov A V, Alici A, Anselmo F et al. Nucl. Instrum.Methods, 2004, A533: 1788. LI Cheng, CHEN Hong-Fang, SHAO Ming et al. HEPNP,2002, 26(5): 455-461(in Chinese)(李澄，陈宏芳，邵明等.高能物理与核物理，2002, 26(5):455-461)9. Craven P, Wahba G. Numer. Math., 1979, 31: 377

[1] GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
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LI Cheng, SUN Yong-Jie, SHAO Ming and CHEN Hong-Fang. A high time resolution MRPC with spatial resolution[J]. Chinese Physics C, 2006, 30(7): 660-664.

LI Cheng, SUN Yong-Jie, SHAO Ming and CHEN Hong-Fang. A high time resolution MRPC with spatial resolution[J]. Chinese Physics C, 2006, 30(7): 660-664. shu

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Received: 2005-09-27
Revised: 2006-02-15

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沈阳化工大学材料科学与工程学院沈阳 110142

A high time resolution MRPC with spatial resolution

Corresponding author: SUN Yong-Jie,

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

Received Date: 2005-09-27
Accepted Date: 2006-02-15
Available Online: 2006-07-05

Abstract: A position-sensitive MRPC prototype with high time resolution was developed. This MRPC has 10×220μm gaps with the active area of 20cm×20cm. A front-end electronics based on NINO ASIC was used. The NINO ASIC can transform the input charge to the width of output signal for the Time-Over-Threshold (TOT) measurement by using High Performance TDC (HPTDC). With the difference of transmit time and distribution of plus amplitude, we can get the two-dimension position information. The beam test result shows a spatial resolution of 4.5mm along the readout pads and 1.6mm perpendicular to the readout pads, espectively. The time resolution is about 63ps and the detection efficiency is over 95%.