High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors

Ryohei Miyawaki; Hisako Niko; Yuu Okada; Motohide Kokubun; Kazuo Makishima; Hitoshi Negoro; Jun'ichi Kotoku; Yukikatsu Terada; Takaaki Tanaka; Takefumi Mitani; Kazuhiro Nakazawa; Tadayuki Takahashi; Ryoichi Ohno; Minoru Funaki; Yoshikatsu Kuroda; Kei Genba; Mitsunobu Onishi

doi:10.1109/TNS.2005.856885

High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors

Ryohei Miyawaki, Hisako Niko, Yuu Okada, Motohide Kokubun, Kazuo Makishima, Hitoshi Negoro, Jun'ichi Kotoku, Yukikatsu Terada, Takaaki Tanaka, Takefumi Mitani, Kazuhiro Nakazawa, Tadayuki Takahashi, Ryoichi Ohno, Minoru Funaki, Yoshikatsu Kuroda, Kei Genba, Mitsunobu Onishi

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

3 Scopus citations

Abstract

Employing Fourier-synthesis optics and one-dimensional position-sensitive detectors, we are developing a novel hard X-ray imager which can work in the ∼ 10 keV to ∼ 200 keV range either as a telescope or a microscope. As the detection part of our imager, we have developed a strip detector made of Schottky CdTe diode, with its cathode divided into 64 channels of 150 urn pitch. Electrodes of all channels are gold-stud bonded to a fanout board, and connected to low noise analog ASIC. We read out signals from all channels simultaneously. As the grid optics elements, one-dimensional "modulation collimator" grids of 1 mm thick tungsten have been manufactured, with 10 grid pitches ranging from 0.2 mm to 2 mm with harmonic ratios. Combining the CdTe strip detector and the grids, we have verified hard X-ray imaging performance of this system. Using an ²⁴¹Am source, we have successfully obtained an image in the 10-70 keV range with a spatial resolution of ∼ 0.5 mm.

Original language	English
Pages (from-to)	2052-2057
Number of pages	6
Journal	IEEE Transactions on Nuclear Science
Volume	52
Issue number	5 III
DOIs	https://doi.org/10.1109/TNS.2005.856885
State	Published - Oct 2005
Externally published	Yes

Keywords

CdTe
Fourier transforms
Microstrip
X-ray astronomy detectors
X-ray imaging

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10.1109/TNS.2005.856885

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Miyawaki, R., Niko, H., Okada, Y., Kokubun, M., Makishima, K., Negoro, H., Kotoku, J., Terada, Y., Tanaka, T., Mitani, T., Nakazawa, K., Takahashi, T., Ohno, R., Funaki, M., Kuroda, Y., Genba, K., & Onishi, M. (2005). High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors. IEEE Transactions on Nuclear Science, 52(5 III), 2052-2057. https://doi.org/10.1109/TNS.2005.856885

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title = "High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors",

abstract = "Employing Fourier-synthesis optics and one-dimensional position-sensitive detectors, we are developing a novel hard X-ray imager which can work in the ∼ 10 keV to ∼ 200 keV range either as a telescope or a microscope. As the detection part of our imager, we have developed a strip detector made of Schottky CdTe diode, with its cathode divided into 64 channels of 150 urn pitch. Electrodes of all channels are gold-stud bonded to a fanout board, and connected to low noise analog ASIC. We read out signals from all channels simultaneously. As the grid optics elements, one-dimensional {"}modulation collimator{"} grids of 1 mm thick tungsten have been manufactured, with 10 grid pitches ranging from 0.2 mm to 2 mm with harmonic ratios. Combining the CdTe strip detector and the grids, we have verified hard X-ray imaging performance of this system. Using an 241Am source, we have successfully obtained an image in the 10-70 keV range with a spatial resolution of ∼ 0.5 mm.",

keywords = "CdTe, Fourier transforms, Microstrip, X-ray astronomy detectors, X-ray imaging",

author = "Ryohei Miyawaki and Hisako Niko and Yuu Okada and Motohide Kokubun and Kazuo Makishima and Hitoshi Negoro and Jun'ichi Kotoku and Yukikatsu Terada and Takaaki Tanaka and Takefumi Mitani and Kazuhiro Nakazawa and Tadayuki Takahashi and Ryoichi Ohno and Minoru Funaki and Yoshikatsu Kuroda and Kei Genba and Mitsunobu Onishi",

year = "2005",

month = oct,

doi = "10.1109/TNS.2005.856885",

language = "英語",

volume = "52",

pages = "2052--2057",

journal = "IEEE Transactions on Nuclear Science",

issn = "0018-9499",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5 III",

}

Miyawaki, R, Niko, H, Okada, Y, Kokubun, M, Makishima, K, Negoro, H, Kotoku, J, Terada, Y, Tanaka, T, Mitani, T, Nakazawa, K, Takahashi, T, Ohno, R, Funaki, M, Kuroda, Y, Genba, K & Onishi, M 2005, 'High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors', IEEE Transactions on Nuclear Science, vol. 52, no. 5 III, pp. 2052-2057. https://doi.org/10.1109/TNS.2005.856885

TY - JOUR

T1 - High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors

AU - Miyawaki, Ryohei

AU - Niko, Hisako

AU - Okada, Yuu

AU - Kokubun, Motohide

AU - Makishima, Kazuo

AU - Negoro, Hitoshi

AU - Kotoku, Jun'ichi

AU - Terada, Yukikatsu

AU - Tanaka, Takaaki

AU - Mitani, Takefumi

AU - Nakazawa, Kazuhiro

AU - Takahashi, Tadayuki

AU - Ohno, Ryoichi

AU - Funaki, Minoru

AU - Kuroda, Yoshikatsu

AU - Genba, Kei

AU - Onishi, Mitsunobu

PY - 2005/10

Y1 - 2005/10

N2 - Employing Fourier-synthesis optics and one-dimensional position-sensitive detectors, we are developing a novel hard X-ray imager which can work in the ∼ 10 keV to ∼ 200 keV range either as a telescope or a microscope. As the detection part of our imager, we have developed a strip detector made of Schottky CdTe diode, with its cathode divided into 64 channels of 150 urn pitch. Electrodes of all channels are gold-stud bonded to a fanout board, and connected to low noise analog ASIC. We read out signals from all channels simultaneously. As the grid optics elements, one-dimensional "modulation collimator" grids of 1 mm thick tungsten have been manufactured, with 10 grid pitches ranging from 0.2 mm to 2 mm with harmonic ratios. Combining the CdTe strip detector and the grids, we have verified hard X-ray imaging performance of this system. Using an 241Am source, we have successfully obtained an image in the 10-70 keV range with a spatial resolution of ∼ 0.5 mm.

AB - Employing Fourier-synthesis optics and one-dimensional position-sensitive detectors, we are developing a novel hard X-ray imager which can work in the ∼ 10 keV to ∼ 200 keV range either as a telescope or a microscope. As the detection part of our imager, we have developed a strip detector made of Schottky CdTe diode, with its cathode divided into 64 channels of 150 urn pitch. Electrodes of all channels are gold-stud bonded to a fanout board, and connected to low noise analog ASIC. We read out signals from all channels simultaneously. As the grid optics elements, one-dimensional "modulation collimator" grids of 1 mm thick tungsten have been manufactured, with 10 grid pitches ranging from 0.2 mm to 2 mm with harmonic ratios. Combining the CdTe strip detector and the grids, we have verified hard X-ray imaging performance of this system. Using an 241Am source, we have successfully obtained an image in the 10-70 keV range with a spatial resolution of ∼ 0.5 mm.

KW - CdTe

KW - Fourier transforms

KW - Microstrip

KW - X-ray astronomy detectors

KW - X-ray imaging

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DO - 10.1109/TNS.2005.856885

M3 - 記事

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SN - 0018-9499

VL - 52

SP - 2052

EP - 2057

JO - IEEE Transactions on Nuclear Science

JF - IEEE Transactions on Nuclear Science

IS - 5 III

ER -

High resolution Fourier synthesis hard X-ray imaging based on CdTe strip detectors

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Keywords

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