Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Forbes R. Powell"'
Publikováno v:
Fusion Science and Technology. 49:832-837
Tents meeting current thickness and uniformity/roughness specifications are needed to position ICF target-capsules inside hohlraum assemblies. We have developed a vacuum-forming technique to mold less than 100nm-thick polyimide films into partially-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0781de47ea40af15ae6cf7097a9a394
https://doi.org/10.13182/fst06-a1209
https://doi.org/10.13182/fst06-a1209
Autor:
Forbes R. Powell
Publikováno v:
Fusion Science and Technology. 45:197-201
This paper discusses some recent contributions to the use of polyimide in the fabrication of targets for Inertial Confinement Fusion (ICF) and Inertial Fusion Energy (IFE). Polyimide has many desirable properties, including much higher strength and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f3729010fec0053a1117705ccfccf18
https://doi.org/10.13182/fst04-a449
https://doi.org/10.13182/fst04-a449
Autor:
Forbes R. Powell, Terry A. Johnson
Publikováno v:
SPIE Proceedings.
Extreme-ultraviolet (EUV) lithography based on reflective optics is expected to require at least one filter window to 1) reduce out-of-band radiation in the ultraviolet, visible and infrared, 2) partially protect the optics from debris from the radia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc8323aa38c4809404fc1b115c830614
https://doi.org/10.1117/12.436709
https://doi.org/10.1117/12.436709
Autor:
Maria Antonella Artale, Alfonso Collura, Antonella Cavadi, Forbes R. Powell, M. Barbera, Salvatore Varisco
Publikováno v:
SPIE Proceedings.
We present preliminary results on a program aimed at characterizing the optical properties of materials of potential usage in filters for soft x-ray detectors. In particular, we discuss a method that we have used to derive and model the refractive in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a605a8a37a5803355f38325a41dc1282
https://doi.org/10.1117/12.366568
https://doi.org/10.1117/12.366568
Autor:
Craig W. Andrus, Forbes R. Powell
Publikováno v:
SPIE Proceedings.
A new generation of sub-micron soft x-ray filters has been developed for use in solar astronomy. These filters are designed to achieve higher transmission than is currently available in the wavelength region from 40 angstrom to 170 angstrom. Prototyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::736f3ebd9977d583cad3b55c173bc440
https://doi.org/10.1117/12.331269
https://doi.org/10.1117/12.331269
Publikováno v:
Optical Diagnostic Methods for Inorganic Transmissive Materials.
A set of neutral density filters covering the optical density range of OD 1 through OD 10 has been designed and constructed for use as calibration and reference filters in the infrared. The filters are optically flat, with a variation of at most one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a9f49a6afac97c4c7ce9cd535854118
https://doi.org/10.1117/12.326680
https://doi.org/10.1117/12.326680
Autor:
Eberhard Moebius, George Chartas, John M. Davis, G. M. Mason, Ritva A. M. Keski-Kuha, Leisa K. Townsley, Richard E. Goddard, Martin V. Zombeck, Forbes R. Powell
Publikováno v:
Grazing Incidence and Multilayer X-Ray Optical Systems.
Filters fabricated from metalized polyimide have been specified for a number of x-ray astronomy missions, including the Advanced X-ray Astrophysics Facility (AXAF), the x-ray spectrometer (XRS) on Astro-E, the Advanced Composition Explorer (ACE), and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20cf4ec3d665b46811cc1347043ec7c2
https://doi.org/10.1117/12.278873
https://doi.org/10.1117/12.278873
Autor:
Forbes R. Powell, George Chartas, John A. Nousek, Dale E. Graessle, Leisa K. Townsley, Richard L. Blake, Gordon P. Garmire
Publikováno v:
SPIE Proceedings.
Measurements of the transmission properties of the AXAF CCD imaging spectrometer (ACIS) UV/optical blocking filters were performed at the National Synchrotron Light Source at Brookhaven Laboratories. The X-ray transmissions of two Al:Si/LEXAN/Al:Si t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fb67841d952df501cecbda98d7ac74c
https://doi.org/10.1117/12.245111
https://doi.org/10.1117/12.245111
Autor:
Forbes R. Powell, Leisa K. Townsley, Gordon P. Garmire, John A. Nousek, Max G. Lagally, J. F. MacKay
Publikováno v:
SPIE Proceedings.
The AXAF CCD imaging spectrometer (ACIS) consists of ten CCDs arranged in two arrays, one for imaging astronomical fields and one to be used in conjunction with transmission gratings for spectroscopy of astrophysical sources. ACIS uses Lexan/aluminum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e4c0e011a4c82c3141b64a0f2c3d63
https://doi.org/10.1117/12.245086
https://doi.org/10.1117/12.245086
Autor:
Charles C. Kankelborg, James E. Plummer, Ray H. O'Neal, J. W. Weed, Richard B. Hoover, Forbes R. Powell, Dennis S. Martinez-Galarce, Craig DeForest, Arthur B. C. Walker, Troy W. Barbee
Publikováno v:
X-Ray and Extreme Ultraviolet Optics.
The MSSTA project at Stanford University is supported by NASA Grant NSG-5131. Richard B. Hoover is supported in part by a grant from the MSFC Center Director's Discretionary Fund and by NASA Grant NSG-5131. Troy W. Barbee, Jr., is supported by the U.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5900cba567a118c68c3689bb281914c
https://doi.org/10.1117/12.212609
https://doi.org/10.1117/12.212609