Beam-induced radiation in the compact muon solenoid tracker at the Large Hadron Collider

Pramana

A P Singh1¹  S Beri¹  P C Bhat²  N V Mokhov² 

[1] Department of Physics, Panjab University, Chandigarh 160 014, India$$;Fermi National Accelerator Laboratory, Batavia, IL 60510, USA$$

关键词: Compact muon solenoid;    tracker;    beam radiation;    dose;    fluences.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The intense radiation environment at the Large Hadron Collider, CERN at a design energy of $sqrt{s} = 14$ TeV and a luminosity of 1034 cm−2S−1 poses unprecedented challenges for safe operation and performance quality of the silicon tracker detectors in the CMS and ATLAS experiments. The silicon trackers are crucial for the physics at the LHC experiments, and the inner layers, being situated only a few centimeters from the interaction point, are most vulnerable to beam-induced radiation. We have recently carried out extensive Monte Carlo simulation studies using MARS program to estimate particle fluxes and radiation dose in the CMS silicon pixel and strip trackers from proton–proton collisions at $sqrt{s} = 14$ TeV and from machine-induced background such as beam–gas interactions and beam halo. We will present results on radiation dose, particle fluxes and spectra from these studies and discuss implications for radiation damage and performance of the CMS silicon tracker detectors.

【 授权许可】

Unknown