Temperature-dependence perturbations on LTP measurements

Giovanni Sostero; Anna Bianco; Marco Zangrando; Daniele Cocco

doi:10.1117/12.450981

24 December 2002 Temperature-dependence perturbations on LTP measurements

Giovanni Sostero, Anna Bianco, Marco Zangrando, Daniele Cocco

Proceedings Volume 4782, X-Ray Mirrors, Crystals, and Multilayers II; (2002) https://doi.org/10.1117/12.450981
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

The Long Trace Profiler (LTP) has proved to be one of the major metrological aids for the characterization of synchrotron radiation optics. Currently the optical components installed at the beamlines face higher and higher demands, requiring a precise calibration and control of the measuring conditions. One important parameter to be considered while scanning is the temperature drifts afflicting the measuring sessions. We will review our experiences about the influence of this parameter on the LTP ability in measuring very accurate optical surfaces. It is possible to discriminate at least four major sources of perturbations due to temperature changes: air turbulence, deformation in the optical train inside the LTP optics head, deformation of the optical surface under test (SUT) and deformation of the holders of the SUT itself. Some addresses on the curing of these perturbations can be obtained.

Citation Download Citation

Giovanni Sostero, Anna Bianco, Marco Zangrando, and Daniele Cocco "Temperature-dependence perturbations on LTP measurements", Proc. SPIE 4782, X-Ray Mirrors, Crystals, and Multilayers II, (24 December 2002); https://doi.org/10.1117/12.450981

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available