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TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI1 Status of laser system TPC meeting, GSI, 2-3 June 2003 Børge Svane Nielsen, Jørn Westergaard Niels.

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Presentation on theme: "TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI1 Status of laser system TPC meeting, GSI, 2-3 June 2003 Børge Svane Nielsen, Jørn Westergaard Niels."— Presentation transcript:

1 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI1 Status of laser system TPC meeting, GSI, 2-3 June 2003 Børge Svane Nielsen, Jørn Westergaard Niels Bohr Institute  Work since January 2003 (PRR on 27 January 2003)  Micro-mirror status  Assembly of laser rods  Optics and mechanics on end-plates

2 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI2 Micromirror production 97 bundles produced and delivered in February 2003,  60 accepted based on surface quality and angles 48 have been selected for the TPC reflecting surfaces brass cup mechanical reference surface Micromirror bundle

3 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI3 Mirror reflectances Preliminary accepted bundles (based on reflectance and image quality): bundles out of 97 received Amplitudes of profiles:

4 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI4 Angles measurements Mean =  Sigma = 0.28  Mean =  Sigma = 0.81 

5 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI5 Linear measurements L Mean = 0.24 mm Sigma = 0.50 mm

6 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI6 Rod gluing 1.Drill holes in short rods: in progress 2.Mount mirror bundles in support rings: to be done at NBI, awaiting laser 3.Glue mirror support rings onto short rods at CERN. Test gluing done. Theta alignment guaranteed by jig + machined surface 4. Glue short rods into full length rods at CERN. Phi alignment adjusted during gluing, using laser 5.Measurements on final rod possible in lab at CERN before installation. Foreseen to be finished in September.

7 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI7 Holes in laser rods Micromirror positions as seen by laser beam: Near end-plates Near central electrode

8 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI8 Test gluing at CERN

9 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI9 On-going activities  Market survey of optical components for end-plates and laser hut completed: order about to be placed with Eksma for € 30,000  Funds secured for 2nd laser in 2004, ship directly to CERN  Design in progress on opto-mechanical supports on end-plates  Gregory et al working on the details of the laser hut  Piezo-electric adjustment system from New Focus: network interface and one 3-axis adjuster in house for testing more 3-axis adjusters to be added  DCS: discussions towards a URD started: laser remote control: RS axis adjusters control: Ethernet or RS-232 cameras: USB to PC downstairs

10 TPC meeting, GSI, 2-3 June 2003Børge Svane Nielsen, NBI10 Laser system principle


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