Beam & Radiation Monitoring for CMS

The Compact Muon Solenoid (CMS) is one of the two large, general purpose experiments situated on the LHC at CERN. Designed to analyze a broad range of momenta and positions of particles created from the √s = 14TeV collisions of protons, CMS requires millions of channels of data coming from a wide variety of detector substances. As with all high energy physics (HEP) experiments knowledge of the beam conditions and luminosity is of vital importance. Accurate monitoring of the beam profile and its temporal behavior helps to protect the experiment by responding to losses in beam control. Additionally, constant monitoring of the radiation inside and around the CMS experiment will aid in predicting the radiation effects of reduced lifetime sustained by the electronic instrumentation within the CMS cavern. The Beam Radiation & Monitoring Group of CMS are responsible for the design, installation and future running of seven detectors in CMS which will provide on-line protection and constant radiation monitoring within the CMS experiment. This paper briefly details the basic designs of three of the beam monitoring detectors.