size: 18 point

size: 18 point

8 Pages · 2010 · 1.1 MB · English

metrology data allowed us to diagnose a 40 μrad misalignment in the incident angle of the first mirror, which had occurred during the experiment. Good agreement between the reconstructed wavefront obtained from the X- ray data and off-line metrology data obtained with visible light demonstrates.

size: 18 point free download

Reconstruction of an astigmatic hard Xray beam and alignment of KB mirrors from ptychographic coherent diffraction data Cameron M Kewish, 1,5,* Manuel GuizarSicairos, 2,6 Chian Liu,3 Jun Qian, 3 Bing Shi, 3 Christa Benson, 4 Ali M Khounsary, 4 Joan VilaComamala, 1 Oliver Bunk, 1 James R Fienup, 2 Albert T Macrander, 3 and Lahsen Assoufid 3 1 Paul Scherrer Institut, CH5232 Villigen PSI, Switzerland 2 The Institute of Optics, University of Rochester, Rochester, New York 14627, USA 3 Xray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 4 APS Engineering Support Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 5Current address: Synchrotron SOLEIL, Saint Aubin BP48, F91192 GifsurYvette, France 6Current address: Paul Scherrer Institut, CH5232 Villigen PSI, Switzerland *[email protected] Abstract: We have used coherent Xray diffraction experiments to characterize both the 1D and 2D foci produced by nanofocusing KirkpatrickBaez (KB) mirrors, and we find agreement Algorithms related to ptychography were used to obtain a 3D reconstruction of a focused hard Xray beam waist, using data measured when the mirrors were not optimally aligned Considerable astigmatism was evident in the reconstructed complex wavefield Comparing the reconstructed wavefield for a single mirror with a geometrical projection of the wavefront errors expected from optical metrology data allowed us to diagnose a 40 μrad misalignment in the incident angle of the first mirror, which had occurred during the experiment Good agreement between the reconstructed wavefront obtained from the X ray data and offline metrology data obtained with visible light demonstrates the usefulness of the technique as a metrology and alignment tool for nanofocusing Xray optics ©2010 Optical Society of America OCIS codes: (1005070) Phase retrieval; (3400340) Xray optics; (1403295) Laser beam characterization; (3407470) Xray mirrors; (1103200) Inverse scattering References and links 1 H M Quiney , A G Peele , Z Cai , D Paterson, and K A Nugent , “Diffractive imaging of highly focused Xray fields ,” Nat Phys 2(2 ), 101– 104 (2006 ) 2 H Yumoto , H Mimura, S Matsuyama , S Handa , Y Sano , M Yabashi , Y Nishino , K Tamasaku , T Ishikawa , and K Yamauchi , “Atwavelength figure metrology of hard Xray focusing mirrors ,” Rev Sci Instrum 77(6), 063712 (2006 ) 3 P Thibault , M Dierolf , A Menzel , O Bunk , C David, and F Pfeiffer , “Highresolution scanning Xray diffraction microscopy ,” Science 321(5887), 379–382 ( 2008) 4 M GuizarSicairos, and J R Fienup , “Phase retrieval with transverse translation diversity: a nonlinear optimization approach ,” Opt Express 16(10), 7264– 7278 ( 2008) 5 P Thibault , M Dierolf , O Bunk , A Menzel, and F Pfeiffer , “Probe retrieval in ptychographic coherent diffractive imaging ,” Ultramicroscopy 109(4), 338– 343 ( 2009) 6 A M Maiden, and J M Rodenburg , “An improved ptychographical phase retrieval algorithm for diffractive imaging ,” Ultramicroscopy 109(10), 1256 –1262 (2009 ) 7 M GuizarSicairos, and J R Fienup , “Measurement of coherent Xray focused beams by phase retrieval with transverse translation diversity,” Opt Express 17(4), 2670 –2685 (2009 ) 8 C M Kewish , P

------------- Read More -------------

Download size-18-point.pdf

size: 18 point related documents

Department of History Postgraduate Handbook 2017-18

48 Pages · 2017 · 906 KB · English

Social and cultural change in early modern Ireland; the diffusion of print and the changing experience of . support for their modules ( Social Media. The Department of History has a presence on social Format (e.g., film, video, DVD), that is, the

11 10 18 King Press Release 3

2 Pages · 2011 · 70 KB · English

Philip further commented “It has been excellent working with Stephen as our 11 10 18 King Press Release_3 Author: stephena Created Date:

at the tipping point: defining an earth jurisprudence for social and ecological justice

42 Pages · 2012 · 270 KB ·

for social justice are those claiming ecological equity for future generations and rights .. change, could create a “tipping point where the Amazon forest is replaced by .. The identity theory of truth rests in large part on the belief that 

Willets Point Development Phase 1 RFP

125 Pages · 2011 · 8.25 MB · English

Figure 3: Proposed Willets Point Accessory Infrastructure Elements (1) - (6) 22. NEW DEVELOPER INFRASTRUCTURE. GREEN BUILDING REQUIREMENTS . In addition to its public outreach and planning efforts, NYCEDC engaged the private development community to gauge developer 

1 Interior-point methods for large-scale cone programming

26 Pages · 2010 · 246 KB ·

for linear programming to general nonlinear convex optimization. which means that h − Gx ∈ C, where C is a closed, pointed, convex cone with over sparse matrix cones. Mathe- matical Programming Computation, 2010. Report ANL/MCS-P1289-0905, Mathematics and Computer Science 

The Definitive Article on Class Size - President's Message

24 Pages · 2008 · 644 KB · English

11 The Definitive Article on Class Size Alice Horning If you are a WPA, sooner or later, you are going to have a fight with your administration over class size In

Composition and ultrastructure of size subclasses of normal human peripheral lymph lipoproteins

10 Pages · 2001 · 755 KB ·

in fractions separated by high performance-size exclusion chromatography . 300 mm Su- perose 6 column (HR 10/30; Pharmacia LKB, Uppsala, Sweden) contain no CE, have pre- mobility, and appear to be a mixture of lipid-free . of total protein in the various chromatographic fractions. These were 

Preliminary results 12 and 18 months ended 31 December 2016 March 21, 2017

30 Pages · 2017 · 431 KB · English

reputation, and as a result, created significant physician demand for training and rapid adoption by . the economic and political situations in Russia and Turkey, Ellansé® revenues for these countries . device designs to address potentially high volume new opportunities including breast, abdomen,

2017-18 Team Chess State Series

6 Pages · 2017 · 292 KB · English

A. IHSA Administrator. 1. The IHSA Administrator is responsi- ble for the overall conduct of the IHSA. Team Chess state series. 2. The IHSA Administrator distributes the IHSA Chess Manual, including the. Tournament Terms and Conditions and the. Chess Rules, to coaches and other interest- ed parties

Lecture Notes 18

120 Pages · 2017 · 5.54 MB · English

Sections 6.1 – 6.6, 11.7, 14.3: Linear Sweep Voltammetry. (LSV), Cyclic Voltammetry. (CV), Thin-Layer smaller again), the Cottrell equation results. E eq. > 200 mV. > 200 mV. FLASHBACK the derivation of these equations is messy (involving the Laplace transform and numerical approximations)…