advanced electronics for tokamak far infrared interferometers

17th IEEE NPSS 2010 Real-Time Conference PFE-033

TORE SUPRA

P. Spuig et al.

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a ca

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c ar ed h

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Advanced Electronics for Tokamak Far Infrared InterferometersP. J. Spuig1, A. Barbuti1, C. Gil1, A. Boboc2, S. Dorling2, M. Jennison2 and JET EFDA contributors

1 EURATOM-CEA association, IRFM, Cadarache, F-13108 Saint Paul lez Durance, France

2 EURATOM-CCFE association, JET, Culham Science Centre, Abingdon, OX14 3DB, UK

17th IEEE NPSS 2010 Real-Time Conference PFE-033

TORE SUPRA

P. Spuig et al.

i

a ca

r mf

c ar ed h

i

a ca

r mf

c ar ed h

Advanced Electronics forTokamak Far Infrared Interferometers

Mach-Zehnder Interferometer

100µm DCN Laser shifted by 100 kHz

Interferometry diagnostic

Measurement of plasma electronic density ne

dllnKl

e )(

ΔΦ can exceed several time 2Π FRINGE JUMPS

Tore Supra electronics team developed a FPGA based logic

to correct the fringe jumps

Tore Supra since 2005

JET planned 2011

17th IEEE NPSS 2010 Real-Time Conference PFE-033

TORE SUPRA

P. Spuig et al.

i

a ca

r mf

c ar ed h

i

a ca

r mf

c ar ed h

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Advanced Electronics forTokamak Far Infrared Interferometers