The 3.4×1.2 m 2 six-plane prototype has been reliably operated over one year and the cosmic-ray tests showed that it was capable of detecting muons with ∼80 μm spatial and ∼5 ns time resolutions. Performance of the CMS cathode strip chambers with cosmic rays 1), it knocks electrons out of the gas molecules and they flock to anode wires, meanwhile positively charged ions move towards cathode strips inducing a charge on them. The Cathode Strip Chambers (CSCs) are the main detectors of the endcap muon system of the CMS experiment [1]. When a charged particle passes through a layer of CSC (fig. For all the ME1/1 CSCs the layer numbers increase from 1 to 6 going away from the interaction point (IP). This paper describes chamber readout electronics and presents the results of the tests with cosmicray muons. The Cathode Strip Chambers (CSCs) are planned to operate throughout the HL-LHC era. The chambers have been installed in the detector and commissioning has been completed. Microstrip gas chambers achieve high precision and high rate by emulating the field structure of multiwire chambers using a sequence of alternating anode and cathode strips on an insulating support. To reproduce the experimental conditions, the intensity of the muon stream in our model had the impulse structure of 40MHz rate. Results: cathode side readout (o4-line) To estimate the overall chamber resolution, one needs to recall that strips in odd/even planes are Muon hit appears as a charge cluster spread over staggered by a half strip width. The design principle for a multi-wire proportional chamber with a cathode strip and delay-line readout is described. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Close Provenance. Cathode strip chambers meet these requirements in the endcap and the barrel ICgions through the application of a single rechnology. When a charged particle passes through the active gas volume of the detector, it produces ionization 5. The anode group numbers increase with increasing radius R.The strip numbers in the wide part (1Ä64) increase with increasing φ, while in the narrow part the readout direction is opposite (1Ä16). The Muon Spectrometer of the ATLAS detector at the LHC is designed to provide high quality stand-alone muon identification, momentum measurement and trigger capabilities with high pseudorapidity coverage. During the 2017/2018 YETS, two Cathode Strip Chambers (CSC) were removed from the cavern for repairs and cleaning. Close Tracking. Compact Muon Solenoid at LHC; The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. The chambers have been installed in the detector and commissioning has been completed. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. Precision tracking at the inner-most station in the high pseudorapidity regions, 2.0 ≪ |η| ≪ 2:7, is performed by 16 four-layered Cathode Strip Chambers on each end-cap. Strips, milled on the cathode panels, run radially in the endcap geometry and thus provide a precise measurement of the ϕ-coordinate. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. The multi-wire chamber uses an array of wires at high voltage (), which run through a chamber with conductive walls held at ground potential ().Alternatively, the wires may be at ground potential and the cathode held at a high negative voltage; the important thing is that a uniform electric field draws extra electrons or negative ions to the anode wires with little lateral motion. Presented are the main design features of the large cathode strip chambers (CSCs) for the CMS endcap muon system as well as the performance results obtained with the first large-scale prototype.