In:
Journal of Instrumentation, IOP Publishing, Vol. 18, No. 01 ( 2023-01-01), p. P01038-
Abstract:
The first evaluation of an ultra-high granularity digital
electromagnetic calorimeter prototype using 1.0–5.8 GeV/c electrons is presented. The 25 × 10 6 pixel detector consists of 24
layers of ALPIDE CMOS MAPS sensors, with a pitch of around 30 μm, and has a depth of almost 20 radiation lengths of
tungsten absorber. Ultra-thin cables allow for a very compact design.
The properties that are critical for physics studies are measured: electromagnetic shower response, energy resolution and linearity.
The stochastic energy resolution is comparable with the state-of-the art resolution for a Si-W calorimeter, with data described well by a
simulation model using Geant4 and Allpix 2 . The
performance achieved makes this technology a good candidate for use in the ALICE FoCal upgrade, and in general demonstrates the strong
potential for future applications in high-energy physics.
Type of Medium:
Online Resource
ISSN:
1748-0221
DOI:
10.1088/1748-0221/18/01/P01038
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2023
detail.hit.zdb_id:
2235672-1
Bookmarklink