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Absolute brightness measurements at the LURE synchrotron with a bolometer and application to the absolute calibration of photodiodes and photocathodes

Published online by Cambridge University Press:  09 March 2009

C. Reverdin
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
P. Troussel
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
F. Le Guern
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
J.L. Bourgade
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
D. Schirmann
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
J.M. Dalmasso
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
D. Gontier
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France
G. Lidove
Affiliation:
Commissariat à l'Energie Atomique, Centre d'Études de Limeil-Valenton, 94195 Villeneuve-Saint-Georges Cedex, France

Abstract

An electrically calibrated bolometer designed to measure VUV and soft X-ray radiation in tokamaks was installed at the end of the calibration beam line used by CEL-V at the LURE synchrotron. Low-noise electronics and an adequate data acquisition enabled absolute measurements of power densities as low as 1 μW/cm2. Power density measurements are presented. At the same location several soft X-ray detectors used in laser-plasma interaction studies were installed and their absolute calibration was performed (photocathodes, photodiodes, etc.). Calibration results are presented and compared with a Henke model for photocathode response.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1994

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References

REFERENCES

Ahr, N. & Tegeler, E. 1992 N.I.M. A319, 387.Google Scholar
Couprie, M.E. 1991 Ann. Phys. Fr. 16, 73.CrossRefGoogle Scholar
Eidmann, K. et al. 1986 Laser Part. Beams 4, 521.CrossRefGoogle Scholar
Henke, B.L. et al. 1981 J. Appi. Phys. 52, 1509.CrossRefGoogle Scholar
Krumrey, M. & Tegeler, E. 1992 Rev. Sci. Instrum. 63, 797.CrossRefGoogle Scholar
Larsen, P.K. 1982 Nucl. Instr. Methods 195, 245.CrossRefGoogle Scholar
Müller, E.R. & Mast, F. 1984 J. Appl. Phys. 55, 2635.CrossRefGoogle Scholar
Reverdin, C. et al. 1992 Inst. Phys. Conf. Ser. No. 125: Sect. 7, 371.Google Scholar