![]() It shows the ionising dose integrated over a fixed time. The beam rate is limited by the alarm levels of the radiation monitor PAXN16601, which is installed in PPE166 behind our zone.Our coincidence rate is less than the beam scintillator rate (typically factor 3-4), because the beam is not fully contained in our acceptance. The coincidence rate in our telescope scintillator setup (~2 cm^2 acceptance) is visible under "Scaler Status" as EXPT.HNA457.001. The beam rate in the scintillator counter at the beginning of the H6B zone (~10 cm x 10 cm acceptance) is visible under "Trigger Status" as XSCI.041.532.You can enter the zone only, when the door is in "Open".It takes about 2 minutes before the beam stopper starts moving.You will be asked to enter your CERN user name and password.Press "Beam" to open the door/beam stopper if you want to start test beam measurement.Press "Open" to close the door/beam stopper in front of the setup for access.Click on the door-icon with the name "Access command".To open/close to door/beam stopper in front of our setup:.If it is not running, start it from the control panel. The program to monitor and modify the beam settings is called CESAR.The PC for controlling the zone access and the beam settings is usually located in the main H6B control room.When Nomachine server crashes, you can try to run "sudo systemctl restart nxserver" on pclcd47.on Mac: ~/Documents/NoMachine/pclcd47.nxs) and in there set the entry "Resize the remote screen to the local geometry" to "false". ![]() To avoid that the main screen gets resized to a too small resolution when connecting, make sure that the resizing of the remote screen is disabled in your local (client) connection settings file: find your connection settings file on your local machine (e.g.in NoMachine, new connection to localhost on port 14000 (uncheck UDP in Advanced).Under SSH -> Tunnels -> Set the source port to 14000 and the destination to :4000 then click add.Under SSH -> X11 -> Check the 'Enable X11 forwarding' option.Under Connection -> Data -> put in your CERN username.Open the configuration window an put as Host Name.type in ""ssh -L 14000::4000 (your CERN for windows users using PuTTY:.Nomachine connection to computer in small control room Swipe CERN access card in front of electronic lock. It is on the left-hand side of the upper level. Control room Q54 ( H6C) is used by us for the telescope located in H6B (zone 156). Swipe dosimeter in front of electronic lock next to the entrance door. For using CERN rental car, request "CERN vehicle driving license (V)" via EDH.Activate access right on your CERN access card at one of the validation stations ( ) Dosimeter and online training course for Supervised Radiation Areas ( ).
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