scholarly journals The 7T-MPW-EDDI beamline at BESSY II

2016 ◽  
Vol 2 ◽  
Author(s):  
Manuela Klaus ◽  
Francisco Garcia-Moreno
Keyword(s):  
Materials Science ◽  
Mechanical Load ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Load Test ◽  
X Rays ◽  
Test Rig ◽  
Compression Load ◽  
External Mechanical Load

The materials science beamline EDDI is operated in the <strong><em>E</em></strong>nergy <strong><em>D</em></strong>ispersive <strong><em>DI</em></strong>ffraction mode and provides hard synchrotron X-rays in an energy range between about 8 … 150 keV for a multitude of experiments reaching from the in-situ study of thin film deposition over the investigation of liquid phase processes to the analysis of the residual stress distribution in complex components and technical parts. For high temperature experiments or measurements under external mechanical load various devices such as heating stations and a tensile/compression load test rig are available. Besides the sample environment for pure diffraction experiments a tomography/radiography setup is provided which allows for combined simultaneous diffraction plus imaging investigations.

scholarly journals Biomimetic Transparent Eye Protection Inspired by the Carapace of an Ostracod (Crustacea)

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 663
Author(s):  
Andrew R. Parker ◽  
Barbara P. Palka ◽  
Julie Albon ◽  
Keith M. Meek ◽  
Simon Holden ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Thin Film Deposition ◽  
Dielectric Materials ◽  
Scratch Resistance ◽  
Film Deposition ◽  
Original Form ◽  
Biomimetic Material ◽  
Eye Protection ◽  
Protection Coating

In this study we mimic the unique, transparent protective carapace (shell) of myodocopid ostracods, through which their compound eyes see, to demonstrate that the carapace ultrastructure also provides functions of strength and protection for a relatively thin structure. The bulk ultrastructure of the transparent window in the carapace of the relatively large, pelagic cypridinid (Myodocopida) Macrocypridina castanea was mimicked using the thin film deposition of dielectric materials to create a transparent, 15 bi-layer material. This biomimetic material was subjected to the natural forces withstood by the ostracod carapace in situ, including scratching by captured prey and strikes by water-borne particles. The biomimetic material was then tested in terms of its extrinsic (hardness value) and intrinsic (elastic modulus) response to indentation along with its scratch resistance. The performance of the biomimetic material was compared with that of a commonly used, anti-scratch resistant lens and polycarbonate that is typically used in the field of transparent armoury. The biomimetic material showed the best scratch resistant performance, and significantly greater hardness and elastic modulus values. The ability of biomimetic material to revert back to its original form (post loading), along with its scratch resistant qualities, offers potential for biomimetic eye protection coating that could enhance material currently in use.

scholarly journals Multilayer Laue Lens: A Path Toward One Nanometer X-Ray Focusing

2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
Hanfei Yan ◽  
Hyon Chol Kang ◽  
Ray Conley ◽  
Chian Liu ◽  
Albert T. Macrander ◽  
...  
Keyword(s):  
Theoretical Calculations ◽  
Numerical Aperture ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Diffraction Effect ◽  
X Rays ◽  
Dynamical Diffraction ◽  
Characterization Methods ◽  
X Ray ◽  
Laue Lens

The multilayer Laue lens (MLL) is a novel diffractive optic for hard X-ray nanofocusing, which is fabricated by thin film deposition techniques and takes advantage of the dynamical diffraction effect to achieve a high numerical aperture and efficiency. It overcomes two difficulties encountered in diffractive optics fabrication for focusing hard X-rays: (1) small outmost zone width and (2) high aspect ratio. Here, we will give a review on types, modeling approaches, properties, fabrication, and characterization methods of MLL optics. We show that a full-wave dynamical diffraction theory has been developed to describe the dynamical diffraction property of the MLL and has been employed to design the optimal shapes for nanofocusing. We also show a 16 nm line focus obtained by a partial MLL and several characterization methods. Experimental results show a good agreement with the theoretical calculations. With the continuing development of MLL optics, we believe that an MLL-based hard x-ray microscope with true nanometer resolution is on the horizon.

scholarly journals Measurements Of Stress Evolution During Thin Film Deposition

1996 ◽  
Vol 428 ◽  
Author(s):  
E. Chason ◽  
J. A. Floro
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Film Stress ◽  
Radius Of Curvature ◽  
Stress Evolution ◽  
Rectangular Array ◽  
Thin Film Stress ◽  
Ccd Detector

AbstractWe have developed a technique for measuring thin film stress during growth by monitoring the wafer curvature. By measuring the deflection of multiple parallel laser beams with a CCD detector, the sensitivity to vibration is reduced and a radius of curvature limit of 4 km has been obtained in situ. This technique also enables us to obtain a 2-dimensional profile of the surface curvature from the simultaneous reflection of a rectangular array of beams. Results from the growth of SiGe alloy films are presented to demonstrate the unique information that can be obtained during growth.

In situ ellipsometric diagnostics of multilayer thin film deposition during sputtering

1998 ◽  
Vol 313-314 ◽  
pp. 511-515 ◽  
Author(s):  
Xiang Gao ◽  
Darin W Glenn ◽  
John A Woollam
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Multilayer Thin Film

Nanoscale Holes Formed by In Situ Thin Film Deposition in a FIB

2004 ◽  
Vol 10 (S02) ◽  
pp. 1118-1119 ◽  
Author(s):  
Andrew M Minor ◽  
Francis Allen ◽  
Velimir R Radmilovic ◽  
Eric A Stach ◽  
Thomas Schenkel
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

scholarly journals Application of image spectrometer to in situ infrared broadband optical monitoring for thin film deposition

2011 ◽  
Vol 19 (14) ◽  
pp. 12969 ◽  
Author(s):  
Qing-Yuan Cai ◽  
Yu-Xiang Zheng ◽  
Dong-Xu Zhang ◽  
Wei-Jie Lu ◽  
Rong-Jun Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Optical Monitoring ◽  
Image Spectrometer

scholarly journals Biomimetic Transparent Eye Protection Inspired by an Ostracod (Crustacea) Carapace

2021 ◽  
Author(s):  
Andrew Richard Parker ◽  
Keith Meek ◽  
Barbara Polka ◽  
Julie Albon ◽  
Simon Holden ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Thin Film Deposition ◽  
Dielectric Materials ◽  
Scratch Resistance ◽  
Film Deposition ◽  
Original Form ◽  
Biomimetic Material ◽  
Eye Protection ◽  
Protection Coating

In this study we mimic the unique, transparent protective carapace (shell) of myodocopid ostracods, through which their compound eyes see, to demonstrate that the carapace ultrastructure also provides functions of strength and protection for a relatively thin structure. The bulk ultrastructure of the transparent window in the carapace of the relatively large, pelagic cypridinid (Myodocopida) Macrocypridina castanea was mimicked using thin film deposition of dielectric materials to create a transparent, 15 bi-layer material. This biomimetic material was subjected to the natural forces withstood by the ostracod carapace in situ, including scratching by captured prey and strikes by water-borne particles. The biomimetic material was then tested in terms of its extrinsic (hardness value) and intrinsic (elastic modulus) response to indentation along with its scratch resistance. The performance of the biomimetic material was compared with that of a commonly used, anti-scratch resistant lens and polycarbonate that is typically used in the field of transparent armoury. The biomimetic material showed the best scratch resistant performance, and significantly greater hardness and elastic modulus values. The ability of biomimetic material to revert back to its original form (post loading), along with its scratch resistant qualities, offers potential for a biomimetic eye protection coating that could enhance material currently in use.

In and out-diffusion of oxygen during YBa2Cu3O7−δ thin film deposition by in situ resistance measurement

1992 ◽  
Author(s):  
J. P. Zheng ◽  
D. H. Kim ◽  
S. Y. Dong ◽  
C. Lehane ◽  
W. P. Shen ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Resistance Measurement
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