ILC Workshop on Potential Experiments (ILCX2021)

A new (Very) Front-End Board for the ILD SiW-ECAL

27 Oct 2021, 16:20

20m

Room #3 (Zoom Meeting ID: 814 7454 2635)

Oral presentation using Zoom Session B: Calorimeters B-2: Calorimeters

Speaker

Mr jerome NANNI (LLR – CNRS, École polytechnique, Institut Polytechnique de Paris, 91120 Palaiseau, France)

Description

The Silicon-Tungsten ECAL (SiW-ECAL) of ILD will require about 10,000 detector slabs of 1.4 to 1,8 m in length. For the ease of building and testing, the slabs are made of stitched detector elements of 18×18 cm², composed of a Front-End Board (FEB), hosting the readout ASICs for 1024 channels, on which the Silicon sensors are glued.
Various types of detector elements have been successfully tested individually; the first attempt to chain them into a long slab in 2018, while globally positive, hinted at some improvements.
As its predecessor, the new FEB will handle 16 SKIROC 2A chips, amplifying, shaping, pipelining and digitizing the data generated by collisions at the International Linear Collider ILC, taking advantage of its pulsed operations to reduce the power dissipation.
This presentation describes the FEB design, adapted for long slabs composed of up to 10 FEB, to perform power supply distribution (now locally pulsed), local high voltage distribution (to reduce intervention and handling). Also, will be show preliminary results on power supply, slow control and leackage current measurements on 1 to 5 FEB chained.

Presentation materials

A new (Very) Front-End Board for the ILD SiW-ECAL.pdf