Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy

Kevin K. Ryu; Marshall W. Bautz; Steven E. Kissel; Peter O'brien; Vyshnavi Suntharalingam

doi:10.1117/1.JATIS.3.3.036001

Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy

Kevin K. Ryu
, Marshall W. Bautz
, Steven E. Kissel
, Peter O'brien
, Vyshnavi Suntharalingam

Massachusetts Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Directly deposited optical-blocking filters (DD OBFs) have the potential to improve filter performance and lower risk and cost for future x-ray imaging spectroscopy missions. However, they have not been fully characterized on high-performance charge coupled devices (CCDs). This paper reports the results of DD OBFs processed on high-performance photon-counting CCDs. It is found that CCD performance is not degraded by deposition of such filters. X-ray and optical transmission through the OBF is characterized and found to match theoretical expectation. Light-leaks through pinholes and the side and back surfaces are found to lower the optical extinction ratio; various coating processes are developed to resolve these issues.

Original language	English
Article number	036001
Journal	Journal of Astronomical Telescopes, Instruments, and Systems
Volume	3
Issue number	3
DOIs	https://doi.org/10.1117/1.JATIS.3.3.036001
Publication status	Published - 1 Jul 2017
Externally published	Yes

Keywords

Back-illumination
Charge coupled device
Molecular beam epitaxy
Optical-blocking filter
OSIRIS-Rex
REXIS
X-ray spectrometer

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10.1117/1.JATIS.3.3.036001

Cite this

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title = "Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy",

abstract = "Directly deposited optical-blocking filters (DD OBFs) have the potential to improve filter performance and lower risk and cost for future x-ray imaging spectroscopy missions. However, they have not been fully characterized on high-performance charge coupled devices (CCDs). This paper reports the results of DD OBFs processed on high-performance photon-counting CCDs. It is found that CCD performance is not degraded by deposition of such filters. X-ray and optical transmission through the OBF is characterized and found to match theoretical expectation. Light-leaks through pinholes and the side and back surfaces are found to lower the optical extinction ratio; various coating processes are developed to resolve these issues.",

keywords = "Back-illumination, Charge coupled device, Molecular beam epitaxy, Optical-blocking filter, OSIRIS-Rex, REXIS, X-ray spectrometer",

author = "Ryu, \{Kevin K.\} and Bautz, \{Marshall W.\} and Kissel, \{Steven E.\} and Peter O'brien and Vyshnavi Suntharalingam",

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doi = "10.1117/1.JATIS.3.3.036001",

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T1 - Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy

AU - Ryu, Kevin K.

AU - Bautz, Marshall W.

AU - Kissel, Steven E.

AU - O'brien, Peter

AU - Suntharalingam, Vyshnavi

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Directly deposited optical-blocking filters (DD OBFs) have the potential to improve filter performance and lower risk and cost for future x-ray imaging spectroscopy missions. However, they have not been fully characterized on high-performance charge coupled devices (CCDs). This paper reports the results of DD OBFs processed on high-performance photon-counting CCDs. It is found that CCD performance is not degraded by deposition of such filters. X-ray and optical transmission through the OBF is characterized and found to match theoretical expectation. Light-leaks through pinholes and the side and back surfaces are found to lower the optical extinction ratio; various coating processes are developed to resolve these issues.

AB - Directly deposited optical-blocking filters (DD OBFs) have the potential to improve filter performance and lower risk and cost for future x-ray imaging spectroscopy missions. However, they have not been fully characterized on high-performance charge coupled devices (CCDs). This paper reports the results of DD OBFs processed on high-performance photon-counting CCDs. It is found that CCD performance is not degraded by deposition of such filters. X-ray and optical transmission through the OBF is characterized and found to match theoretical expectation. Light-leaks through pinholes and the side and back surfaces are found to lower the optical extinction ratio; various coating processes are developed to resolve these issues.

KW - Back-illumination

KW - Charge coupled device

KW - Molecular beam epitaxy

KW - Optical-blocking filter

KW - OSIRIS-Rex

KW - REXIS

KW - X-ray spectrometer

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U2 - 10.1117/1.JATIS.3.3.036001

DO - 10.1117/1.JATIS.3.3.036001

M3 - Article

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JO - Journal of Astronomical Telescopes, Instruments, and Systems

JF - Journal of Astronomical Telescopes, Instruments, and Systems

IS - 3

M1 - 036001

ER -

Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy

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Keywords

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