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Quality Assurance

Quality Assurance. 16/05/06. Station assembly QA /comb - i. Comb arrived: 9 May Doublet layer arrived: 15 May Length of the scintillating fibre is about 40cm, bit short to play with comb Need to shift doublet layer on vacuum chuck

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Quality Assurance

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  1. Quality Assurance 16/05/06

  2. Station assembly QA /comb - i • Comb arrived: 9 May • Doublet layer arrived: 15 May • Length of the scintillating fibre is about 40cm, bit short to play with comb • Need to shift doublet layer on vacuum chuck • For bundling of the fibre, better to cut the fibre to the same length • For the production version, the length of the fibre > 50 cm, will be OK 40cm

  3. Station Assembly QA - ii • Comb holder made;16 May Vacuum tube connector Comb position adjustable Scintillating fibres tangle up to comb’s slit and teeth => Needs cover on top of the comb

  4. Vacuum chuck • Vacuum pump switch • Suction on/off switch • Tube attached to vacuum chuck • Vacuum pump is quite noisy;better to move outside of the room to make a worker friendly environment

  5. Microscope with CCD • CCD • Light controller • Stage controller • Video text overlay switch • CRT

  6. Straightness check - i • Unmount vacuum chuck holder; • Be careful to this pin • Put holder on stage • Fix the holder y x

  7. Straightness check - ii • Align the vacuum chuck with alignment pinuntil the fibres on the CRT and the crosshairs on the CRT match • Then scan across the fibreto check deviation from straightness • Stage controller boot sequence; • Double clickD:/Microscan/Microscan.ht • Open MicroScan.txt on desktop • Copy texts to hyper terminal • Type “man()” then press return;a text “UNDER MANUAL CONTROL” should appear onLCD of SPECTROLAB MICROSCAN

  8. Todo • Tools and parts scattered around in the room;need to tidy the room for efficient work • PC for stage controller too slow;Windows XP running on Pentium 200MHz with 128MB memory; ridiculous10 minutes to boot; 10 minutes to shut down • Finish straightness check • Try bundling with comb

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