KPiX, An Array of Self Triggered Charge Sensitive Cells Generating Digital Time and Amplitude Information

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The Silicon Detector proposed for the International Linear Collider (ILC) requires electronic read-out that can be tightly coupled to the silicon detectors envisioned for the tracker and the electromagnetic calorimeter. The KPiX is a 1024-channel read-out chip that bump-bonds to the detector and communicates through a few digital signals, power, and detector bias. The KPiX front-end is a low-noise dual-range charge-amplifier with a dynamic range of 17 bit, achieved by autonomous switching of the feedback capacitor. The device takes advantage of the ILC duty cycle of 1 ms trains at 5 Hz rate by lowering the supply current after the ... continued below

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4 pages

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Freytag, D.; Herbst, R.; /SLAC; Brau, J.; U., /Oregon; Breidenbach, M. et al. December 11, 2008.

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Description

The Silicon Detector proposed for the International Linear Collider (ILC) requires electronic read-out that can be tightly coupled to the silicon detectors envisioned for the tracker and the electromagnetic calorimeter. The KPiX is a 1024-channel read-out chip that bump-bonds to the detector and communicates through a few digital signals, power, and detector bias. The KPiX front-end is a low-noise dual-range charge-amplifier with a dynamic range of 17 bit, achieved by autonomous switching of the feedback capacitor. The device takes advantage of the ILC duty cycle of 1 ms trains at 5 Hz rate by lowering the supply current after the data acquisition cycle for an average power consumption of <20 {micro}W/channel. During the 1 ms train, up to four events exceeding a programmable threshold can be stored, the amplitude as a voltage on a capacitor for subsequent digitization, the event time in digital format. The chip can be configured for other than ILC applications.

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4 pages

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  • Presented at 2008 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC) and 16th International Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors (RTSD), Dresden, Germany, 18-25 Oct 2008

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  • Report No.: SLAC-PUB-13462
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 944071
  • Archival Resource Key: ark:/67531/metadc897942

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  • December 11, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 29, 2016, 4:45 p.m.

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Freytag, D.; Herbst, R.; /SLAC; Brau, J.; U., /Oregon; Breidenbach, M. et al. KPiX, An Array of Self Triggered Charge Sensitive Cells Generating Digital Time and Amplitude Information, article, December 11, 2008; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc897942/: accessed December 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.