Simulation Studies of the Radiation Environment in the CMS Detector for pp Collisions at the LHC

Detailed knowledge of the radiation environment in which the CMS detector has to operate at the Large Hadron Collider is vital to ensure safe operation of the detector and to maintain the desired performance quality. Therefore, we have carried out Monte Carlo simulation studies using MARS code to estimate particle fluxes and radiation dose in the CMS silicon pixel and strip trackers as well as in the surrounding detector subsystems from proton-proton collisions, beam-gas and beam halo interactions, and for some LHC beam accident scenarios. In this note, we present results on radiation dose, particle fluxes, and energy spectra from simulations of pp collisions at $\sqrt s $=14 TeV, and discuss implications.