Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers

K. D. Joensen; Finn Erland Christensen; H. W. Schnopper; P. Gorenstein; J. Susini; P. Hoghoj; R. Hustache; J. L. Wood; K. Parker

doi:10.1117/12.140479

Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers

K. D. Joensen, Finn Erland Christensen, H. W. Schnopper, P. Gorenstein, J. Susini, P. Hoghoj, R. Hustache, J. L. Wood, K. Parker

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The authors present a concept of continuously graded multilayer structures for medium-sized X-ray telescopes which is based on several material combinations. They show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy X-ray grazing incidence telescopes. They consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez, geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm and 64 foci, an effective area of 250 cm2 at 60 keV and a FWHM field of view of 6' is obtained. It is shown that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive X-ray reflectivity data (15-70 keV) is presented for the first continuously graded multilayer of this kind

Original language	English
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1736
Pages (from-to)	239-248
ISSN	0277-786X
DOIs	https://doi.org/10.1117/12.140479
Publication status	Published - 1993
Event	SPIE San Diego 1992 - San Diego, United States Duration: 22 Jul 1992 → 22 Jul 1992

Conference

Conference	SPIE San Diego 1992
Country/Territory	United States
City	San Diego
Period	22/07/1992 → 22/07/1992

Access to Document

10.1117/12.140479

OpenUrl availability

Full text

Cite this

@article{bada8d2636bd4d6c919603c7c465b806,

title = "Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers",

abstract = "The authors present a concept of continuously graded multilayer structures for medium-sized X-ray telescopes which is based on several material combinations. They show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy X-ray grazing incidence telescopes. They consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez, geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm and 64 foci, an effective area of 250 cm2 at 60 keV and a FWHM field of view of 6' is obtained. It is shown that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive X-ray reflectivity data (15-70 keV) is presented for the first continuously graded multilayer of this kind",

author = "Joensen, {K. D.} and Christensen, {Finn Erland} and Schnopper, {H. W.} and P. Gorenstein and J. Susini and P. Hoghoj and R. Hustache and Wood, {J. L.} and K. Parker",

year = "1993",

doi = "10.1117/12.140479",

language = "English",

volume = "1736",

pages = "239--248",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "Society of Photo-Optical Instrumentation Engineers",

note = "SPIE San Diego 1992 ; Conference date: 22-07-1992 Through 22-07-1992",

}

TY - JOUR

T1 - Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers

AU - Joensen, K. D.

AU - Christensen, Finn Erland

AU - Schnopper, H. W.

AU - Gorenstein, P.

AU - Susini, J.

AU - Hoghoj, P.

AU - Hustache, R.

AU - Wood, J. L.

AU - Parker, K.

PY - 1993

Y1 - 1993

N2 - The authors present a concept of continuously graded multilayer structures for medium-sized X-ray telescopes which is based on several material combinations. They show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy X-ray grazing incidence telescopes. They consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez, geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm and 64 foci, an effective area of 250 cm2 at 60 keV and a FWHM field of view of 6' is obtained. It is shown that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive X-ray reflectivity data (15-70 keV) is presented for the first continuously graded multilayer of this kind

AB - The authors present a concept of continuously graded multilayer structures for medium-sized X-ray telescopes which is based on several material combinations. They show that the theoretical reflectivity characteristics of these structures make them very advantageous when applied to high energy X-ray grazing incidence telescopes. They consider the performance of continuously graded Ni/C multilayers in a multi-focus, Kirkpatrick-Baez, geometry and show a significant improvement when compared to standard coatings of gold. For a total length of 3.3 m, a total aperture of 48 cm by 48 cm and 64 foci, an effective area of 250 cm2 at 60 keV and a FWHM field of view of 6' is obtained. It is shown that a modular array of conical telescopes (conical approximation to a Wolter-I geometry), with the same length and aperture provides similar effective areas. Energy-dispersive X-ray reflectivity data (15-70 keV) is presented for the first continuously graded multilayer of this kind

U2 - 10.1117/12.140479

DO - 10.1117/12.140479

M3 - Journal article

SN - 0277-786X

VL - 1736

SP - 239

EP - 248

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - SPIE San Diego 1992

Y2 - 22 July 1992 through 22 July 1992

ER -

Medium-sized grazing incidence high-energy X-ray telescopes employing continuously graded multilayers

Abstract

Conference

Access to Document

OpenUrl availability

Fingerprint

Cite this