dc.contributor.author | Schattenburg, Mark Lee | |
dc.contributor.author | Ahn, Minseung | |
dc.contributor.author | Heilmann, Ralf K | |
dc.date.accessioned | 2010-03-17T16:56:29Z | |
dc.date.available | 2010-03-17T16:56:29Z | |
dc.date.issued | 2008-07 | |
dc.identifier.issn | 0277-786X | |
dc.identifier.uri | http://hdl.handle.net/1721.1/52668 | |
dc.description.abstract | We have developed a new type of soft x-ray diffraction grating. This critical-angle transmission (CAT) grating combines the advantages of traditional transmission gratings (low mass, extremely relaxed alignment and flatness tolerances) with those of x-ray reflection gratings (high efficiency due to blazing in the direction of grazing-incidence reflection, increased resolution due to the use of higher diffraction orders). In addition, grating spectrometers based on CAT gratings are well-suited for co-existence with high-energy focal plane microcalorimeter detectors as planned for the Constellation-X mission, since most high-energy x rays are neither absorbed nor deflected, and arrive at the telescope focus. We describe the CAT grating principle and design, and fabrication and x-ray diffraction efficiency results for a CAT grating with 1742 lines/mm. We have observed up to 46% diffraction efficiency in a single order, and up to 55% at blaze at extreme ultraviolet wavelengths. We present our recent fabrication and soft x-ray diffraction results for 200 nm-period (5000 lines/mm) gratings. | en |
dc.description.sponsorship | National Aeronautics and Space Administration (grants NNX07AG98G and NNX08AI62G) | en |
dc.description.sponsorship | Samsung Group | en |
dc.language.iso | en_US | |
dc.publisher | The International Society for Optical Engineering | en |
dc.relation.isversionof | http://dx.doi.org/10.1117/12.789176 | en |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en |
dc.source | SPIE | en |
dc.title | Fabrication and performance of blazed transmission gratings for x-ray astronomy | en |
dc.type | Article | en |
dc.identifier.citation | Heilmann, Ralf K., Minseung Ahn, and Mark L. Schattenburg. “Fabrication and performance of blazed transmission gratings for x-ray astronomy.” Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray. Ed. Martin J. L. Turner & Kathryn A. Flanagan. Marseille, France: SPIE, 2008. 701106-10. © 2008 SPIE--The International Society for Optical Engineering | en |
dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
dc.contributor.approver | Heilmann, Ralf K. | |
dc.contributor.mitauthor | Schattenburg, Mark Lee | |
dc.contributor.mitauthor | Ahn, Minseung | |
dc.contributor.mitauthor | Heilmann, Ralf K. | |
dc.relation.journal | Proceedings of SPIE | en |
dc.eprint.version | Final published version | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en |
dspace.orderedauthors | Heilmann, Ralf K.; Ahn, Minseung; Schattenburg, Mark L. | en |
dc.identifier.orcid | https://orcid.org/0000-0001-6932-2612 | |
mit.license | PUBLISHER_POLICY | en |
mit.metadata.status | Complete | |