“…The VFE ASICs are 16 SKIROC2 [18,19,20] (Silicon pin Kalorimeter Integrated ReadOut Chip), that have been designed for the readout of silicon PIN diodes. The SKIROC2 are enclosed in an LFBGA package and are bump bonded to the PCB.…”
Section: The Siw-ecal Technological Prototypementioning
confidence: 99%
“…Earlier experience with the SKIROC2 ASIC has been reported in [19,20,21]. For the following, the internal SKIROC2 parameters determined in these references are adopted except if otherwise stated.…”
The technological prototype of the CALICE highly granular silicon-tungsten electromagnetic calorimeter (SiW-ECAL) was tested in a beam at DESY in 2017. The setup comprised seven layers of silicon sensors. Each layer comprised four sensors, with each sensor containing an array of 256 5.5 × 5.5 mm 2 silicon PIN diodes. The four sensors covered a total area of 18 × 18 cm 2 , and comprised a total of 1024 channels. The readout was split into a trigger line and a charge signal line. Key performance results for signal over noise for the two output lines are presented, together with a study of the uniformity of the detector response. Measurements of the response to electrons for the tungsten loaded version of the detector are also presented.
“…The VFE ASICs are 16 SKIROC2 [18,19,20] (Silicon pin Kalorimeter Integrated ReadOut Chip), that have been designed for the readout of silicon PIN diodes. The SKIROC2 are enclosed in an LFBGA package and are bump bonded to the PCB.…”
Section: The Siw-ecal Technological Prototypementioning
confidence: 99%
“…Earlier experience with the SKIROC2 ASIC has been reported in [19,20,21]. For the following, the internal SKIROC2 parameters determined in these references are adopted except if otherwise stated.…”
The technological prototype of the CALICE highly granular silicon-tungsten electromagnetic calorimeter (SiW-ECAL) was tested in a beam at DESY in 2017. The setup comprised seven layers of silicon sensors. Each layer comprised four sensors, with each sensor containing an array of 256 5.5 × 5.5 mm 2 silicon PIN diodes. The four sensors covered a total area of 18 × 18 cm 2 , and comprised a total of 1024 channels. The readout was split into a trigger line and a charge signal line. Key performance results for signal over noise for the two output lines are presented, together with a study of the uniformity of the detector response. Measurements of the response to electrons for the tungsten loaded version of the detector are also presented.
“…The bias voltage needed for the sensor depletion is provided through a conductive foil of copper and kapton glued to the back of the sensor and connected to the high voltage through the interface card or the SL-Board (see Section III). All previous published results of the technological prototype of the SiW-ECAL [10], [13] have been obtained with ASUs equipped with ASICs in different plastic/ceramic packagings. That generation of ASUs is called as FEV.…”
Section: Active Signal Unit (Asu)mentioning
confidence: 99%
“…The boards have a thickness of 3.2-3.5 mm including components and connectors. Until now, the digital readout of the FEVs was realised with a Detector Interface Card (DIF) interfaced with an small adapter card (SMB) for signal buffering and power regulation which is placed between DIF and the ASUs (see [10], [13]). The FEV13 design included two conceptual modifications with respect the previous FEV: the addition of two new layers (12 in total) including one extra layer to separate the analogue and digital power supply layers of the ASIC and a modification on the ASU conectivity.…”
A highly granular silicon-tungsten electromagnetic calorimeter (SiW-ECAL) is the reference design of the ECAL for International Large Detector (ILD) concept, one of the two detector concepts for the detector(s) at the future International Linear Collider. Prototypes for this type of detector are developed within the CALICE Collaboration. The final detector will comprise about 10 8 calorimeter cells that have to be integrated in a volume of maximal 20 cm in depth. Detector components that in terms of size and channel density come already close to the specifications for future large scale experiments are progressively developed. This contribution will report on the performance of a new 1.2 mm thick 9-layer PCB with wirebonded ASICs and comparisons with PCBs with BGA packaged ASICs will be presented. A volume of about 6×18×0.2 cm 3 is available for the digital readout and the power supply of the individual detector layers that feature up to 10000 calorimeter cells. We will present newly developed electronic cards that meet these constraints.
“…For the readout of the SiPMs a version of the HGCROC, including a capacitive charge divider, will be produced. HGCROC is based on the SKIROC2 chip [5] for the CALICE collaboration [6]. A development version named SKIROC2_CMS, optimized for the CMS testbeam, shows encouraging results [7].…”
Section: Front-end Electronics Requirements and Architecturementioning
A high granularity calorimeter is presently being designed by the CMS collaboration to replace the existing endcap detectors. It must be able to cope with the very high collision rates, imposing the development of novel filtering and triggering strategies, as well as with the harsh radiation environment of the high-luminosity LHC. In this paper we present an overview of the full electronics architecture and the performance of prototype components and algorithms.
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