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  • 1
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Scanning Transmission Soft X-ray Microscope at the NSLS has been instrumented for the following new forms of imaging: (1) XANES microscopy for the mapping of chemical constituents and for absorption spectroscopy of small specimen areas; (2) luminescence microscopy for locating visible light emitting labels at the resolution determined by the size of the x-ray microprobe; and (3) dichroism microscopy for mapping the alignment of molecules whose absorption spectra are polarization dependent. Since the instrument is used mostly for the imaging of biological and other radiation sensitive materials, a cryostage is being planned to accommodate frozen hydrated specimens. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 66 (1995), S. 1332-1334 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: New operational modes have been added to the Stony Brook scanning transmission x-ray microscope at the NSLS by the incorporation of a CCD detector. A zone plate focuses x rays to a microprobe, through which a specimen can be scanned. The x rays transmitted by the specimen are detected in the far field, at high angular resolution, by the CCD. The microdiffraction patterns so obtained may be used in several ways to obtain information about the sample: by obtaining structural information about the specimen from the patterns on a point-by-point basis, by building up scanned images from signals derived from the CCD frames, or by deconvolving the four-dimensional dataset. These modes increase the resolution that can be achieved in the microscope, offer new imaging methods, and ways of obtaining phase and amplitude maps of a specimen. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 71 (1992), S. 2993-3001 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: X-ray projection lithography has recently been explored as a method for the manufacture of 〈200 nm linewidth integrated circuits. A method is described whereby projected lithographic images can be formed with x rays by means of a transmission hologram. The form of the hologram is computed by an algorithm that eliminates the unwanted signals normally present as systematic errors in in-line holographic images. Example calculations are shown in which holograms are constructed to generate images of a given test pattern. The holographic images are shown to have excellent fidelity with respect to both resolution and contrast. Such an approach to projection x-ray lithography requires an x-ray beam with very little coherence and is thus compatible with high wafer throughput schemes; in addition, image fidelity remains high even when moderately small contaminant particles block the light from small regions of the hologram. Fabrication limits for the single optic involved are compatible with current technological limits. The approach is applicable over a large range of soft-x-ray wavelengths, indicating the feasibility of a 100 nm resolution system with 6 μm depth of field using a carbon mask system operating at 5 nm, or other materials at shorter wavelengths.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 7 (2000), S. 110-112 
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A specimen chamber is described for soft X-ray spectromicroscopy of hydrated specimens and solutions. Applications include imaging and carbon edge spectroscopy of hydrated clay/polymer suspensions.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillian Magazines Ltd.
    Nature 424 (2003), S. 50-53 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Advances in extreme-ultraviolet (EUV) and X-ray optics are providing powerful new capabilities in high-resolution imaging and trace-element analysis of microscopic specimens, and the potential for fabricating devices of smaller critical dimensions in next-generation integrated circuit ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 6 (1999), S. 50-50 
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A fast (∼12 ms) shutter for UHV beamlines is described. In the closed position the beam is blocked by an electrically isolated aluminium piece. The total yield photocurrent in this situation can be used to monitor the beam intensity.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature America Inc.
    Nature structural biology 5 (1998), S. 650-653 
    ISSN: 1072-8368
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] X-ray microscopes, using synchrotron radiation sources, are allowing high resolution studies into the structure and chemistry of whole hydrated single ...
    Type of Medium: Electronic Resource
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  • 8
    Publication Date: 2017-03-08
    Description: In 2014, a radical shift took place in Danish water planning. Following years of a top-down water planning approach, 23 regional water councils were established to co-create and provide input to Danish authorities on the development of River Basin Management Plans (RBMP). The water councils advised local authorities on the application of measures to improve the physical conditions in Danish streams within a given economic frame. The paper shows the difference the use of water councils (public participation) made by comparing the final water council proposal included in the 2015 RBMP to the RBMPs proposed by the central government (Nature Agency) in 2014. The study concludes that the measures proposed by the water councils will generally deliver better results than the proposed Nature Agency plans, which do not include the same level of participation. Specifically, the water councils with stakeholder involvement proposed a much longer network of streams (3800 km), yielding a better ecological outcome than the shorter stream network (1615 km) proposed by the Nature Agency for the same budget. Having a structured and fixed institutional frame around public participation (top-down meeting bottom-up) can produce cost-effective results, but the results show that cost-effectiveness was not the only deciding factor, and that local circumstances like the practicalities of implementing the measures were also considered when developing the Programmes of Measures. The findings suggest that the use of water councils in water planning has significant advantages, including the fact that the knowledge of local conditions helps to identify efficient solutions at lower costs, which can be useful for administrators, policy-makers, and other stakeholders implementing the Water Framework Directive in years to come.
    Electronic ISSN: 2073-4441
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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