Note: The USA15Mux is also called
|The history of Rasnik systems,
picture to continue for details
||In the test
set-up for Clic, Rasnik and Rasdif systems are used. Rasnik
conventional coded mask and a central lens. Rasdif uses a
laser and a
diffraction plate in the middle. The systems share the
sensor, which is
read-out via USB. The light sources are switched under USB
offspring of the Rasnik system. Instead of using the
dedicated Atlas structure, commercial USB and Ethernet
used. Sensiflex has a collaboration agreement with Nikhef.
RasGap uses the Sensiflex hardware. It monitors the dilatation joint between the old and new part of the Nikhef building.
|Up to eight RasCams can be
connected (RJ45) to the Rasmux. There are 8
drivers for RasLeds, each having two output connectors
80 * 225 * ~45 mm. Control goes through the COM-port.
Several stages of
multiplexers are used to create a system of almost 6000
here you find the most complete description of the system.
|ATLAS prototype system||Up to eight RasCams can be connected (RJ45) and 12 RasLeds (RJ11). Control from LPT port via MasterBrico.|
|Before ATLAS||The so-called demo kit. A
scalable system, up to 32 channels
(obsolete). Used to select different video channels and for
||The alignment system for
used four-quadrant diodes. It was used to monitor the sag
individual detectors of app. 6 m long and the relative
three layers of muon detectors. The system shown here
position of the end-caps with respect to the barrel
lightpath wend through a 60 cm thick steel door which was
part of the
magnetic bending system.
or you can go to :
updated: february 2012