دورية أكاديمية
Kirkpatrick-Baez microscope for hard X-ray imaging of fast ignition experiments.
| العنوان: | Kirkpatrick-Baez microscope for hard X-ray imaging of fast ignition experiments. |
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| المؤلفون: | Friesen H; University of Alberta, 116 St. and 85 Ave., Edmonton, Alberta T6G 2R3, Canada. hal@ualberta.ca, Tiedje HF, Hey DS, Mo MZ, Beaudry A, Fedosejevs R, Tsui YY, Mackinnon A, McLean HS, Patel PK |
| المصدر: | The Review of scientific instruments [Rev Sci Instrum] 2013 Feb; Vol. 84 (2), pp. 023704. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Institute Of Physics Country of Publication: United States NLM ID: 0405571 Publication Model: Print Cited Medium: Internet ISSN: 1089-7623 (Electronic) Linking ISSN: 00346748 NLM ISO Abbreviation: Rev Sci Instrum Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: 1933- : Woodbury, N.Y. : American Institute Of Physics Original Publication: 1930-1932 : Menasha, WI : Optical Society of America |
| مستخلص: | A Kirkpatrick-Baez X-ray microscope has been developed for use on the Titan laser facility at the Lawrence Livermore National Laboratory in Fast Ignition experiments. It was developed as a broadband alternative to narrow band Bragg crystal imagers for imaging Kα emission from tracer layers. A re-entrant design is employed which allows for alignment from outside the chamber. The mirrors are coated with Pt and operate at a grazing incident angle of 0.5° providing higher resolution than an equal brightness pinhole and sufficient bandwidth to image thermally shifted characteristic Kα emission from heated Cu tracer layers in Fast Ignition experiments. The superpolished substrates (<1 Å rms roughness) had a final visible wavelength roughness of 1.7 Å after coating, and exhibited a reflectivity corresponding to an X-ray wavelength roughness of 7 ± 1 Å. A unique feature of this design is that during experiments, the unfiltered direct signal along with the one-dimensional reflections are retained on the detector in order to enable a live indication of alignment and incident angle. The broad spectral window from 4 to 9 keV enables simultaneous observation of emission from several spectral regions of interest, which has been demonstrated to be particularly useful for cone-wire targets. An experimentally measured resolution of 15 μm has been obtained at the center of the field of view. |
| تواريخ الأحداث: | Date Created: 20130308 Date Completed: 20130926 Latest Revision: 20130307 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1063/1.4776670 |
| PMID: | 23464215 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Scitation. | تدمد: | 1089-7623 |
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| DOI: | 10.1063/1.4776670 |