A low-noise CMOS pixel direct charge sensor, Topmetal-II-
被引:37
作者:
An, Mangmang
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机构:
Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
An, Mangmang
[1
]
Chen, Chufeng
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Chen, Chufeng
[1
]
Gao, Chaosong
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Gao, Chaosong
[1
]
Han, Mikyung
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机构:
Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USACent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Han, Mikyung
[2
]
Ji, Rong
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Ji, Rong
[1
]
Li, Xiaoting
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Li, Xiaoting
[1
]
Mei, Yuan
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Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USACent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Mei, Yuan
[2
]
Sun, Quan
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机构:
Chinese Acad Sci, Inst Acoust, Beijing 100190, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Sun, Quan
[3
]
Sun, Xiangming
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Sun, Xiangming
[1
]
Wang, Kai
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Wang, Kai
[1
]
Xiao, Le
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Xiao, Le
[1
]
Yang, Ping
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Yang, Ping
[1
]
Zhou, Wei
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Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R ChinaCent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
Zhou, Wei
[1
]
机构:
[1] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China
[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA
[3] Chinese Acad Sci, Inst Acoust, Beijing 100190, Peoples R China
Topmetal;
Pixel;
Charge sensor;
Ion readout;
READOUT CHIP;
TIME;
GEM;
D O I:
10.1016/j.nima.2015.11.153
中图分类号:
TH7 [仪器、仪表];
学科分类号:
0804 ;
080401 ;
081102 ;
摘要:
We report the design and characterization of a CMOS pixel direct charge sensor, Topmetal-II-, fabricated in a standard 0.35 mu m CMOS Integrated Circuit process. The sensor utilizes exposed metal patches on top of each pixel to directly collect charge. Each pixel contains a low-noise charge-sensitive preamplifier to establish the analog signal and a discriminator with tunable threshold to generate hits. The analog signal from each pixel is accessible through time-shared multiplexing over the entire array. Hits are read out digitally through a column-based priority logic structure. Tests show that the sensor achieved a < 15 e(-) analog noise and a 200 e(-) minimum threshold for digital readout per pixel. The sensor is capable of detecting both electrons and ions drifting in gas. These characteristics enable its use as the charge readout device in future Time Projection Chambers without gaseous gain mechanism, which has unique advantages in low background and low rate-density experiments. Published by Elsevier B.V.
机构:
Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
Univ Calif Berkeley, Div Phys, Berkeley, CA 94720 USACERN, CH-1211 Geneva 23, Switzerland
机构:
Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
Univ Calif Berkeley, Div Phys, Berkeley, CA 94720 USACERN, CH-1211 Geneva 23, Switzerland