Conveners
Trigger, HV, electronics
- Vincent Boudry (LLR - Ecole Polytechnique/CNRS-IN2P3)
Trigger, HV, electronics
- Christophe De La Taille
The High Luminosity LHC (HL-LHC) will require a significant upgrade of the readout electronics for the CMS Electromagnetic Calorimeter (ECAL). The Very Front-End (VFE) output signal will be sampled at 160 MS/s (i.e. four times the current sampling rate) with a 13 bits resolution. Therefore, a high-speed, high-resolution ADC is required. Moreover, each readout channel will produce 2.08 Gb/s,...
The LHC high-luminosity upgrade in 2024-2026 requires the associated detectors to operate at luminosities about 5-7 times larger than assumed in their original design. The pile-up is expected to increase to up to 200 events per proton bunch-crossing.
The current readout of the ATLAS Liquid Argon (LAr) Calorimeters does not provide sufficient buffering and bandwidth capabilities to accommodate...
The High Granularity Calorimeter (HGCAL), presently being designed by the CMS collaboration to replace the CMS endcap calorimeters for the High Luminosity phase of LHC, will feature six million channels distributed over 52 longitudinal layers. The requirements for the front-end electronics are extremely challenging, including high dynamic range (0-10 pC), low noise (~2000e- to be able to...
The International Large Detector (ILD) is one of two detector concepts of International Linear Collider (ILC). The ILD silicon-tungsten electromagnetic calorimeter (ILD Si-W ECAL) is a sampling calorimeter with tungsten absorber and highly segmented silicon layers to achieve precise jet energy measurements by particle flow concept. Readout ASICs should be embedded between absorber and...
The CMS Electromagnetic Calorimeter utilizes scintillating lead tungstate crystals, with avalanche photodiodes (APD) as photodetectors in the barrel part. The high voltage system, consisting of 1224 channels, biases groups of 50 APD pairs, each at a voltage of about 380 V. The sensitivity of the APD gain to the bias voltage is 3%/V. A stability of better than 60 mV is therefore required to...
During the second run of operation, the LHC delivers proton-proton collisions at a
centre-of-mass energy of 13 TeV with a peak instantaneous luminosity of $1.5 \cdot
10^{34} cm^{-2}s^{-1}$ in 2016, almost double the peak luminosity reached during
Run-1 and far larger than the design value. To maintain acceptance for proton and
heavy ion collision events of interest without exceeding the 100...
The NA62 experiment at CERN SPS accelerator studies the ultra-rare decays of charged kaons. The high-resolution Liquid Krypton (LKr) electromagnetic calorimeter is a key component of the experiment photon-veto system. The LKr readout system comprises 14 thousand 14-bit ADC acquisition channels, 432×1 Gbit Ethernet data request and readout links routed to the experiment computer farm. The...
The upgrade of the Large Hadron Collider (LHC) scheduled for a shut-down period of 2019-2020, referred to as the Phase-I upgrade, will increase the instantaneous luminosity to about three times the design value. Since the current ATLAS trigger system does not allow sufficient increase of the trigger rate, an improvement of the trigger system is required. The Liquid Argon (LAr) Calorimeter...
