skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: EUV and soft X-ray transition radiation from MIRRORCLE-type tabletop synchrotrons

Abstract

MIRRORCLE-20SX tabletop synchrotron is under development for EUV lithography. We measured the soft X ray power from the existing synchrotron MIRRORCLE-6X (6MeV machine). Transition radiation power from one thin foil target was detected by a plastic scintillator, which is calibrated by using conventional synchrotron radiation source at AIST. The output EUV power was 2.6 mW. From the experimental result of MIRRORCLE-6X we can extrapolate the EUV power for the 20MeV machine as large as one watt per foil. We expect 100 watt EUV by 100 of foils.

Authors:
 [1]; ;  [2]
  1. Photon Production Laboratory Ltd. (Japan)
  2. Synchrotron Light Life Science Center (Japan)
Publication Date:
OSTI Identifier:
21056940
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 902; Journal Issue: 1; Conference: 2. international symposium on portable synchrotron light sources and advanced applications, Shiga (Japan), 15-17 Jan 2007; Other Information: DOI: 10.1063/1.2723639; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; FOILS; LIGHT SOURCES; MASKING; PLASTIC SCINTILLATORS; PORTABLE SOURCES; SOFT X RADIATION; SYNCHROTRON RADIATION; SYNCHROTRON RADIATION SOURCES; SYNCHROTRONS; TRANSITION RADIATION

Citation Formats

Toyosugi, Norio, Minkov, Dorian, and Yamada, Hironari. EUV and soft X-ray transition radiation from MIRRORCLE-type tabletop synchrotrons. United States: N. p., 2007. Web. doi:10.1063/1.2723639.
Toyosugi, Norio, Minkov, Dorian, & Yamada, Hironari. EUV and soft X-ray transition radiation from MIRRORCLE-type tabletop synchrotrons. United States. doi:10.1063/1.2723639.
Toyosugi, Norio, Minkov, Dorian, and Yamada, Hironari. Fri . "EUV and soft X-ray transition radiation from MIRRORCLE-type tabletop synchrotrons". United States. doi:10.1063/1.2723639.
@article{osti_21056940,
title = {EUV and soft X-ray transition radiation from MIRRORCLE-type tabletop synchrotrons},
author = {Toyosugi, Norio and Minkov, Dorian and Yamada, Hironari},
abstractNote = {MIRRORCLE-20SX tabletop synchrotron is under development for EUV lithography. We measured the soft X ray power from the existing synchrotron MIRRORCLE-6X (6MeV machine). Transition radiation power from one thin foil target was detected by a plastic scintillator, which is calibrated by using conventional synchrotron radiation source at AIST. The output EUV power was 2.6 mW. From the experimental result of MIRRORCLE-6X we can extrapolate the EUV power for the 20MeV machine as large as one watt per foil. We expect 100 watt EUV by 100 of foils.},
doi = {10.1063/1.2723639},
journal = {AIP Conference Proceedings},
number = 1,
volume = 902,
place = {United States},
year = {Fri Mar 30 00:00:00 EDT 2007},
month = {Fri Mar 30 00:00:00 EDT 2007}
}
  • About half of the gravitational luminosity released by gas accreting onto a white dwarf through a disk should emerge from the star/disk boundary layer. For the accretion rates present in many cataclysmic variables, theory predicts that this luminosity should be in the form of an optically thick EUV/soft X-ray component, with T/sub e/roughly-equal(1-3) x 10/sup 5/ K. We compare the theoretical predictions with presently available soft X-ray observations and find satisfactory agreement. Previous doubts on this point were based on inappropriate choices for several critical parameters: white dwarf mass, interstellar column density, and the space density of classical novae. Wemore » also attempt to constrain the boundary layer radiation by comparing observed and predicted strengths of the He II lambda1640 and lambda4686 emission lines, assuming that these are produced by photoionization in the upper layers of the disk. The results support the simple optically thick model for high-M systems, but may require complicated X-ray spectra in low-M systems.« less
  • We demonstrate fully phase-matched high harmonic emission spanning the water window spectral region important for nano- and bioimaging and a breadth of materials and molecular dynamics studies. We also generate the broadest bright coherent bandwidth ({approx_equal}300 eV) to date from any light source, small or large, that is consistent with a single subfemtosecond burst. The harmonic photon flux at 0.5 keV is 10{sup 3} higher than demonstrated previously. This work extends bright, spatially coherent, attosecond pulses into the soft x-ray region for the first time.
  • A soft X-ray source with a periodic Al multi-layer structure for a tabletop synchrotron was designed and the dependence of radiation performance on structural parameters was clarified by using a theoretical calculation of resonance transition radiation. The spectral intensity of photon per incident electron at emitted photon of 1 keV was calculated by optimizing the Al thickness and vacuum space. Furthermore the designed structure was fabricated by microfabrication technique. Based on the fabrication results, we discussed dimension errors of Al thickness and vacuum space. It was confirmed that the vacuum space should be ranged from 90 nm to 140 nmmore » to obtain the spatial total intensity of more than 90 percents of the maximum value of radiation intensity.« less
  • MIRRORCLE is a tabletop/portable synchrotron light source. It generates 10 mW order far infrared, watt order EUV/soft X-ray, and brilliant hard X-rays in 10 to 1000 keV range. MIRRORCLE is also a synchrotron that can generate directly monochromatic X-ray beam. MIRRORCLE is a medical diagnostics system similar to a X-ray tube radiology, but is very different in its fine spatial resolution and coherence of X-ray. A difference in the material density instead of in the atomic number is distinguished by the phase contrast method, due to its highly coherent beam. MIRRORCLE is a non-destructive testing system for more than 10cmmore » thick heavy constructions with 10-{mu}m order fine spatial resolution. MIRRORCLE is an EUV lithography source, a laboratory size protein crystallography system, as well as a X-ray microscope. We discuss advanced features of this multi-functional light source MIRRORCLE.« less
  • MIRRORCLE type tabletop synchrotron is suitable for magnified hard x-ray imaging due to its micron size x-ray source, wide radiation angle, x-ray spectrum ranging from a few keV to 6 MeV and high flux output. It is known that the magnified imaging by a micron size x-ray source provides a high spatial resolution image, and a sharply enhanced edge effect for weakly absorbing objects. This x-ray imaging technique is known as a phase-contrast imaging. In this work, we performed a phase contrast imaging of a simple shape objects using an imaging plate for studying the characteristics of the edge enhancementmore » by MIRRORCLE. It turns out that the edge effect is enhanced for higher magnification and smaller source size. The characteristics of the edge effect can be explained by using the refraction effect. Furthermore, the refraction contrast is enhanced when the imaging system resolution is decreased. By using MIRRORCLE, we can obtain refractive-contrast images of objects as large as human. The magnified x-ray imaging capabilities of MIRRORCLE are a great advantage to medical imaging and NDI of organic objects.« less