962 research outputs found
Experiment Result of Down Literal Circuit and Analog Inverter on CMOS Double-Polysilicon Process
No full textALICE Forward Calorimeter upgrade (FoCal): Physics program and performance
No full textA new high-precision forward calorimeter (FoCal) is about to be installed in the ALICE experiment at the LHC during Long Shutdown 3 for data-taking in the LHC Run 4 that is currently scheduled for the period 2030-2033. FoCal consists of a Si+W sampling electromagnetic calorimeter with longitudinal and transverse segmentations (FoCal-E) and a conventional Cu+scintillating-fiber hadronic calorimeter (FoCal-H). FoCal has a front face of approximately 90 90 cm and isplaced at z 7 m from the nominal interaction point. It covers the pseudo-rapidity range of 3.2 5.8. FoCal has unique capabilities to measure the direct photon production at the forward rapidity that probes the gluon distribution in protons and nuclei at small-. Furthermore, FoCal will enable to carry out inclusive and correlation measurements of photons, neutral mesons and jets in hadronic pp and p-Pb collisions aswell as J/ production in the ultra-peripheral p-Pb and Pb-Pb collisions. We developed a full-length detector prototype and studied its performance such as a response to minimum ionizing particles and a longitudinal shower profile of electromagneticshowers at the CERN PS and SPS complexes in 2022-2023. We tested the silicon pad sensors for FoCal-E at the RIKEN Accelerator-driven compact neutron systems (RANS) facility in Japan in 2022-2024 and they have the radiation tolerance to withstand the full operation at the LHC Run 4.Mass production of FoCal will begin soon
ALICE FoCal Prototype Test of ECAL and HCAL - October 2025
No full textALICE FoCal Prototype Test - October 2025: FoCal Electromagnetic Calorimeter silicon pads from NISER, India group and the group from Tsukuba, Japan. and FoCal Hadronic Calorimeter (HCAL
Spectroscopic study of molecular hydrogen concentration at the vicinity of metal surfaces
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