Adaptive silicon monochromators for high-heat-load insertion devices

Hiroyuki Oyanagi

doi:10.1117/12.138713

20 January 1993 Adaptive silicon monochromators for high-heat-load insertion devices

Hiroyuki Oyanagi

Proceedings Volume 1740, Optics for High-Brightness Synchrotron Radiation Beamlines; (1993) https://doi.org/10.1117/12.138713
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

A new concept of adaptive silicon crystal monochromator for high heat load insertion devices is proposed in order to dynamically correct the thermal distortion by piezoelectric translators as a function of beam power. Shapes and dimensions of cooling channel was optimized by testing various types of grooved crystals using a 27-pole wiggler magnet beamline. The results indicate that the cooling efficiency of grooved silicon crystals can be improved by replacing a conventional semicircular cooling channel with a flat cooling channel with an optimized dimension. The results of rocking curve measurement showed an energy resolution ((Delta) E/E approximately 2 X 10^-4). A prototype of adaptive first crystal with grooves was fabricated using a new diffusion bond technique. It was found that the crystal surface was precisely bent to a radius of several hundred meters by a piezoelectric device. An adaptive approach to the second crystal using an inchworm mortor was presented for dynamical sagittal focusing for realizing the energy-independent horizontal focus.

Citation Download Citation

Hiroyuki Oyanagi "Adaptive silicon monochromators for high-heat-load insertion devices", Proc. SPIE 1740, Optics for High-Brightness Synchrotron Radiation Beamlines, (20 January 1993); https://doi.org/10.1117/12.138713

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