One-movement fixed-exit channel-cut monochromator

Sebastian Oestreich; Burkhard Kaulich; Ray Barrett; Jean Susini

doi:10.1117/12.332504

11 December 1998 One-movement fixed-exit channel-cut monochromator

Sebastian Oestreich, Burkhard Kaulich, Ray Barrett, Jean Susini

Proceedings Volume 3448, Crystal and Multilayer Optics; (1998) https://doi.org/10.1117/12.332504
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A fixed-exit monochromator, which requires only a single rotation, is described. It is based on a Si-111 crystal which has profiled reflecting surfaces and an undistorted lattice. The purpose of the surface profile is to keep the beam exit fixed, while the monochromator needs only a rotational movement. The monochromator must have a negligible effect on the phase space of the outgoing beam, to avoid astigmatic errors when microfocusing the monochromatic beam. The influence of the crystal on the phase space has been calculated to confirm that it is compatible with the production of a microspot of about 20 micrometer diameter using subsequent focusing optics, which is a basic requirement for the object illumination in the imaging type X-ray microscope at the experimental station.The performance of the monochromator in terms of bandwidth, throughput and stability of the beam position has been calculated and measured. Limitations in terms of energy range and acceptable thermal load are discussed.

Citation Download Citation

Sebastian Oestreich, Burkhard Kaulich, Ray Barrett, and Jean Susini "One-movement fixed-exit channel-cut monochromator", Proc. SPIE 3448, Crystal and Multilayer Optics, (11 December 1998); https://doi.org/10.1117/12.332504

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