TPC laser controls Laser hut adjustable mirrors Laser
TPC laser controls Laser hut adjustable mirrors Laser Controls, Power, Cooling DCS: 1/ Laser controls 3/ Beam monitoring cameras Laser DCS meeting, Utrecht, 13 June 2005 2/ Mirror adjustments 4/ Interlocks Børge Svane Nielsen, NBI 1
Status of software at NBI Laser controls and steering: Program written for Linux/C++ (see talk by G. Renault). Comment: beam tracker needs continuous loop and real-time user interface. Cameras: Very likely to change strategy from USB Webcam to digital video + frame grabber. Synchronisation and multiplexing of cameras by STAR developed board. Mirror controls: Still based on New. Focus system with driver: Lab. VIEW or DLL. Comment: ’camera’ and ’mirror’ programs need to be tightly connected and have common real-time user interface: automatic beam steering and/or manual steering Laser DCS meeting, Utrecht, 13 June 2005 Børge Svane Nielsen, NBI 2
STAR synchronisation board Functions: Ø Synchronise 2 lasers to LHC clock / BCO (40 MHz divided down on board to ~10 Hz) Ø Synchronize any number of cameras to same clock Ø Multiplex any of 32 cameras to 1 (or 2) frame grabbers Ø Delivers up to 8 TTL output signals for external equipment (mirror flippers, shutters etc) Communication: 11 bit I/O -- ’driver’ exists for PC parallel port Laser DCS meeting, Utrecht, 13 June 2005 Børge Svane Nielsen, NBI 3
STAR synchronisation board Laser DCS meeting, Utrecht, 13 June 2005 Børge Svane Nielsen, NBI 4
STAR laser user interface Laser DCS meeting, Utrecht, 13 June 2005 Børge Svane Nielsen, NBI 5
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