Is colder better? Exploring the feasibility of liquid-helium-cooled optics

Lahsen Assoufid; Dennis M. Mills; Albert T. Macrander; Gordon Tajiri

doi:10.1117/12.370108

16 November 1999 Is colder better? Exploring the feasibility of liquid-helium-cooled optics

Lahsen Assoufid, Dennis M. Mills, Albert T. Macrander, Gordon Tajiri

Proceedings Volume 3773, X-Ray Optics Design, Performance, and Applications; (1999) https://doi.org/10.1117/12.370108
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Both simulations and recent experiments conducted at the Advanced Photon Source showed that the performance of liquid- nitrogen-cooled single-silicon crystal monochromators can degrade in a very rapid nonlinear fashion as the power and/or power density is increased. As a further step towards improving the performance of silicon optics, we propose cooling with liquid helium, which dramatically improves the thermal properties of silicon beyond that of liquid nitrogen and brings the performance of single silicon-crystal-based synchrotron radiation optics up to the ultimate limit. The benefits of liquid helium cooling as well as some of the associated technical challenges will be discussed, and results of thermal and structural finite elements simulations comparing the performance of silicon monochromators cooled with liquid nitrogen and helium will be given.

Citation Download Citation

Lahsen Assoufid, Dennis M. Mills, Albert T. Macrander, and Gordon Tajiri "Is colder better? Exploring the feasibility of liquid-helium-cooled optics", Proc. SPIE 3773, X-Ray Optics Design, Performance, and Applications, (16 November 1999); https://doi.org/10.1117/12.370108

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Liquids

Helium

Monochromators

Crystals

Silicon

Nitrogen

X-rays

Show All Keywords

Keywords/Phrases

Search In:

Publication Years