Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van...

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Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege, Joris van Heijningen, Ad de Snayer, Robert Hart, Gerrit Brouwer Nikhef CLIC Workshop CERN, Jan 29, 2013

Transcript of Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van...

Page 1: Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,

Development and validationof RasChain alignment systemsfor the pre-alignment of CLIC

Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,Joris van Heijningen, Ad de Snayer, Robert Hart, Gerrit BrouwerNikhef

CLIC WorkshopCERN, Jan 29, 2013

Page 2: Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,

RasChainFirst: Rasnik-RasDif performance studies at Nikhef

Page 3: Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,

RasChain: interconnected Rasnik systemsfor basic CLIC units of 2010 mm

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All parts received- installation June 1

Page 5: Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,
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6 ChainPlates including

2x RasNik 4 m2x RasDif 4 m3x proximity systems

Proximity RasnikRasnikRasDif

Page 7: Development and validation of RasChain alignment systems for the pre-alignment of CLIC Niels van Bakel, Bram Bouwens,Harry van der Graaf, Henk Groenstege,

Fine adjustment of focal length of standard Melles Griot lenses:f = 1000 mm: apply UV light LEDs, infra-red light LEDs

Quite some trouble with LeLac LED/Laser power box (USB controlled)

(green) semiconductor lasers: unstable (power, position?)

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6 ChainPlates including

2x RasNik 4 m2x RasDif 4 m3x proximity systems

Proximity RasnikRasnikRasDif

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In preparation: calibration station for RasChain

on (existing) steel bar (6.8 m long)3 support plates variable mountMeasurements: 3D machines, RasNiks, streched wire