Download or read book Tests of Submicron Structure X ray Transmission Gratings written by Ramanujam Manikkalingam and published by . This book was released on 1985 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book RLE Progress Report written by Massachusetts Institute of Technology. Research Laboratory of Electronics and published by . This book was released on 1992 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Precise Rotational Alignment of X ray Transmission Diffraction Gratings written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gold transmission diffraction gratings used for x-ray spectroscopy must sometimes be rotationally aligned to the axis of a diagnostic instrument to within sub-milliradian accuracy. We have fabricated transmission diffraction gratings with high line-densities (grating period of 200 and 300 nm) using uv holographic and x-ray lithography. Since the submicron features of the gratings are not optically visible, precision alignment is time consuming and difficult to verify in situ. We have developed a technique to write an optically visible alignment pattern onto these gratings using a scanning electron microscope (SEM). At high magnification (15000 X) several submicron lines of the grating are observable in the SEM, making it possible to write an alignment pattern parallel to the grating lines in an electron-beam-sensitive coating that overlays the grating. We create an alignment pattern by following a 1-cm-long grating line using the SEM's joystick-controlled translation stage. By following the same grating line we are assured the traveled direction of the SEM electron beam is parallel to the grating to better than 10 .mu.radian. The electron-beam-exposed line-width can be large (5 to 15 .mu.m wide) depending on the SEM magnification, and is therefore optically visible. The exposed pattern is eventually made a permanent feature of the grating by ion beam etching or gold electroplating. The pattern can be used to accurately align the grating to the axis of a diagnostic instrument. More importantly, the alignment of the grating can be quickly verified in situ.

Download or read book Research in Materials written by and published by . This book was released on 1982 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research in Materials written by Massachusetts Institute of Technology and published by . This book was released on 1982 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federal Register written by and published by . This book was released on 2012-05 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book X ray Instrumentation in Astronomy written by J. Leonard Culhane and published by . This book was released on 1986 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AIAA 86 0342 AIAA 86 0399 written by and published by . This book was released on 1986 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transmission Diffraction Gratings for Soft X ray Spectroscopy and Spatial Period Division written by Andrew Michael Hawryluk and published by . This book was released on 1981 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space Astronomical Telescopes and Instruments written by and published by . This book was released on 1991 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Space Astronomical Telescopes and Instruments written by Pierre-Yves Bely and published by . This book was released on 1991 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium Proceedings written by and published by . This book was released on 1981 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical Engineering written by and published by . This book was released on 2003 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes papers reporting on research and development in optical science and engineering and the practical applications of known optical science, engineering, and technology.

Download or read book Health and Safety Research Division Progress Report for the Period written by and published by . This book was released on 1979-10 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diffraction X ray Optics written by A.I. Erko and published by CRC Press. This book was released on 1996 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diffraction X-ray Optics provides a systematic description of the performance and mathematical properties of diffraction x-ray optical elements based upon artificially made microstructures. This description is presented both theoretically (using kinematic diffraction theory and classical optics) and experimentally (including details of the experimental verification of theoretical data). The microstructures which are considered include: plane zone plates, two and three dimensional gratings, multilayer mirrors and three dimensional Fresnel structures. The book also includes a detailed description of the main principles, technology and applications of both Bragg-Fresnel multilayer optics and x-ray Fourier optics. Special attention is paid to coherent phenomena in the x-ray region, x-ray holography and Bragg-Fresnel optics and with chapters covering absorption and refraction, planar diffraction, volume holography, fabrication techniques and microscopy this book will prove a useful sourcebook to both researchers and development engineers in the field.

Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt: