Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017) 2017
DOI: 10.22323/1.314.0505
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The new CGEM Inner Tracker and the new TIGER ASIC for the BES III Experiment

Abstract: A new detector exploiting the technology of Gas Electron Multipliers is under construction to replace the innermost drift chamber of BESIII experiment, since its efficiency is compromised owing the high luminosity of Beijing Electron Positron Collider. The new inner tracker with a cylindrical shape will deploy several new features. The analogue readout and two complementary algorithms to reconstruct the position will allow achieving a spatial resolution of 130 µm in a 1 T magnetic field. For this purpose, TIGE… Show more

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Cited by 7 publications
(8 citation statements)
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“…The first version of the digitization algorithm has been successfully integrated into the BOSS framework. The effect of the electronics response [14] and the threshold will also be added. The procedure will be further optimized and tuned once data are collected to make the MC simulation consistent with data.…”
Section: Digitization Modelmentioning
confidence: 99%
“…The first version of the digitization algorithm has been successfully integrated into the BOSS framework. The effect of the electronics response [14] and the threshold will also be added. The procedure will be further optimized and tuned once data are collected to make the MC simulation consistent with data.…”
Section: Digitization Modelmentioning
confidence: 99%
“…To overcome this issue a new algorithm has been recently proposed. The idea developed for the ATLAS MicroMegas of the New Small Wheels [10,11], and also implemented on the BESIII cylindrical GEM [12,13], is to reconstruct a track segment inside the detector conversion gap rather than a single hit exploiting the analog readout of the signals.…”
Section: Space Resolution Measurementsmentioning
confidence: 99%
“…To optimize the collection of the primary electrons inside the GEM hole and the readout of the signal, the GEM foil is placed within an anode and a cathode. The used anode is segmented in strips and it is readout by APV-25 or TIGER electronics [3,4]. Multiple amplification stages allow to generate a signal of about 100 fC, keeping the number of discharges small [5].…”
Section: Detector and Testbeam Setupmentioning
confidence: 99%
“…The induced charge is split between several strips and collected by the electronics. Two readout types have been used in the testbeam experiments, with different techniques to measure charge and time: APV-25 [3] and the TIGER [4]. The APV-25 is a commercial chip that samples the charge each 25 ns for 27 times after the trigger signal.…”
Section: Hit Digitizationmentioning
confidence: 99%