Open Access

Crystals

, volume 10 , issue 6 , pages 429

Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications

Christos M. Michail ¹

Vaia Koukou ¹

Niki Martini ¹

George Saatsakis ²

N. Kalyvas ¹

Athanasios Bakas ³

Ioannis Kandarakis ¹

George Fountos ¹

GEORGE PANAYIOTAKIS ²

I. Valais ¹

Hide authors affiliations Show authors affiliations: 3 affiliations

Department of Biomedical Engineering, Radiation Physics, Materials Technology and Biomedical Imaging Laboratory, University of West Attica, Ag. Spyridonos, 12210 Athens, Greece |

Department of Medical Physics, Faculty of Medicine, University of Patras, GR-15310 Rion, Greece |

Department of Biomedical Sciences, University of West Attica, Ag. Spyridonos, 12210 Athens, Greece |

Publication type: Journal Article

Publication date: 2020-05-27

MDPI

Crystals

scimago Q2

wos Q2

SJR: 0.486

CiteScore: 5.0

Impact factor: 2.4

ISSN: 20734352, 01725076

DOI: 10.3390/cryst10060429

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Inorganic Chemistry

General Chemical Engineering

Condensed Matter Physics

General Materials Science

Abstract

Background: In this study, the light output of a cadmium tungstate (CdWO4) single crystal was measured under various X-ray radiographic energies. Methods: A CdWO4 single crystal (10 × 10 × 10 mm3) was exposed to X-rays in the 50–130 kVp range. Measurements were evaluated against published data for single crystals of equal dimensions (CaF2:Eu and Lu3Al5O12:Ce). Since the crystal was examined for application in medical imaging detectors, the emitted optical spectrum was classified with respect to the spectral compatibility of numerous commercial optical sensors. Results: The luminescence efficiency (LE) was found to constantly increase with X-ray energy and was higher than that of CaF2:Eu for energies above 90 kVp. However, the efficiency of the previously published Lu3Al5O12:Ce was found to be constantly higher than that of CdWO4. The light emitted from CdWO4 can be optimally detected by certain charge-coupled devices (CCDs), amorphous silicon photodiodes, and photocathodes. Conclusions: The high density (7.9 g/cm3) of CdWO4 and the luminescence signal of this material make it suitable for medical imaging (such as dual energy), high-energy physics or for applications of scintillators in harsh environments.

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Michail C. M. et al. Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications // Crystals. 2020. Vol. 10. No. 6. p. 429.

GOST all authors (up to 50) Copy

Michail C. M., Koukou V., Martini N., Saatsakis G., Kalyvas N., Bakas A., Kandarakis I., Fountos G., PANAYIOTAKIS G., Valais I. Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications // Crystals. 2020. Vol. 10. No. 6. p. 429.

RIS |

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RIS Copy

TY - JOUR

DO - 10.3390/cryst10060429

UR - https://doi.org/10.3390/cryst10060429

TI - Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications

T2 - Crystals

AU - Michail, Christos M.

AU - Koukou, Vaia

AU - Martini, Niki

AU - Saatsakis, George

AU - Kalyvas, N.

AU - Bakas, Athanasios

AU - Kandarakis, Ioannis

AU - Fountos, George

AU - PANAYIOTAKIS, GEORGE

AU - Valais, I.

PY - 2020

DA - 2020/05/27

PB - MDPI

SP - 429

IS - 6

VL - 10

SN - 2073-4352

SN - 0172-5076

ER -

BibTex |

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BibTex (up to 50 authors) Copy

@article{2020_Michail,

author = {Christos M. Michail and Vaia Koukou and Niki Martini and George Saatsakis and N. Kalyvas and Athanasios Bakas and Ioannis Kandarakis and George Fountos and GEORGE PANAYIOTAKIS and I. Valais},

title = {Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications},

journal = {Crystals},

year = {2020},

volume = {10},

publisher = {MDPI},

month = {may},

url = {https://doi.org/10.3390/cryst10060429},

number = {6},

pages = {429},

doi = {10.3390/cryst10060429}

}

MLA

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MLA Copy

Michail, Christos M., et al. “Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications.” Crystals, vol. 10, no. 6, May. 2020, p. 429. https://doi.org/10.3390/cryst10060429.

Publisher

MDPI

Journal

Crystals

scimago Q2

wos Q2

SJR

0.486

CiteScore

5.0

Impact factor

2.4

ISSN

20734352 (Print, Electronic)

01725076 (Print)