Observation and partly characterisation of silver nanoparticles in X-ray irradiated radiophotoluminescent phosphate glass

Zheng, Wanhua; Kurobori, Toshio

doi:10.1016/j.nimb.2011.08.019

Cited by 13 publications

(10 citation statements)

References 27 publications

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“…In addition, the origin, formation kinetics and optical properties of X-ray-induced Ag centres were also investigated through various methods [15,16].…”

Section: Resultsmentioning

confidence: 99%

A comparative study of optical and radiative characteristics of X-ray-induced luminescent defects in Ag-doped glass and LiF thin films and their applications in 2-D imaging

Kurobori

Miyamoto²,

Maruyama

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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We report novel disk-type X-ray two-dimensional (2-D) imaging detectors utilising Ag-doped phosphate glass and lithium fluoride (LiF) thin films based on the radiophotoluminescence (RPL) and photoluminescence (PL) phenomena, respectively. The accumulated X-ray doses written in the form of atomic-scale Ag-related luminescent centres in Ag-doped glass and F-aggregated centres in LiF thin films were rapidly reconstructed as a dose distribution using a homemade readout system. The 2-D images reconstructed from the RPL and PL detectors are compared with that from the optically stimulated luminescence (OSL) detector. In addition, the optical and dosimetric characteristics of LiF thin films are investigated and evaluated. The possibilities of dose distributions with a high spatial resolution on the order of microns over large areas, a wide dynamic range covering 11 orders of magnitude and a non-destructive readout are successfully demonstrated by combining the Ag-doped glass with LiF thin films. Toshio KUROBORI HIGHLIGHTSA novel disk-type Ag-doped glass and LiF thin film detectors based on the RPL and PL phenomena, respectively, were proposed.The capabilities of the 2-D dose images accumulated with a high spatial resolution and a wide dynamic range were demonstrated.The 2-D images reconstructed from the RPL and PL detectors were compared with that from the OSL detector. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Center, Chiyoda Technol Corporation, 3681 Narita-cho, Oarai-machi, Ibaraki 311-1313, Japan c Pulstec Industrial Corporation, 7000-35 Nakagawa, Hosoe-cho, Kita-ku, Hamamatsu-shi, Shizuoka, 431-1304 Research Highlights ABSTRACTWe report novel disk-type X-ray two-dimensional (2-D) imaging detectors utilising Ag-doped phosphate glass and lithium fluoride (LiF) thin films based on the radiophotoluminescence (RPL) and photoluminescence (PL) phenomena, respectively. The accumulated X-ray doses written in the form of atomic-scale Ag-related luminescent centres in Ag-doped glass and F-aggregated centres in LiF thin films were rapidly reconstructed as a dose distribution using a homemade readout system. The 2-D images reconstructed from the RPL and PL detectors are compared with that from the optically stimulated luminescence (OSL) detector. In addition, the optical and dosimetric characteristics of LiF thin films are investigated and evaluated. The possibilities of dose distributions with a high spatial resolution on the order of microns over large areas, a wide dynamic range covering 11 orders of magnitude and a non-destructive readout are successfully demonstrated by combining the Ag-doped glass with LiF thin films.

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“…In addition, the origin, formation kinetics and optical properties of X-ray-induced Ag centres were also investigated through various methods [15,16].…”

Section: Resultsmentioning

confidence: 99%

A comparative study of optical and radiative characteristics of X-ray-induced luminescent defects in Ag-doped glass and LiF thin films and their applications in 2-D imaging

Kurobori

Miyamoto²,

Maruyama

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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“…In addition, the origin, formation kinetics and optical properties were also investigated with a peak-fitting analysis, a high-repetition-rate femtosecond (fs) laser technique, an RPL decay curve analysis, a heat treatment, and transmission electron microscopy (TEM) (Zheng and Kurobori, 2011a;Zheng et al, 2011;Zheng and Kurobori, 2011b).…”

Section: Resultsmentioning

confidence: 99%

A novel disk-type X-ray area imaging detector using radiophotoluminescence in silver-activated phosphate glass

Kurobori

Nakamura

2012

Radiation Measurements

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We report a novel two-and three-dimensional (2-D, 3-D) imaging detector based on the radiophotoluminescence (RPL) phenomenon in silver-activated phosphate glass (PG:Ag) and evaluate its dosimetric characteristics. A compact disk-type PG:Ag detector with a diameter of 80 mm was rotated at a rate of 400 rpm to read out the accumulated dose information and then remove the images for reuse. After X-ray exposure, three RPL dosimeter processes, i.e., preheating, reading, and erasing, were carried out with only a UV laser at 375 nm by adjusting the stepwise output levels. The 3-D images and dose distributions were rapidly reconstructed with a high spatial resolution of 1 μm and a sensitivity of 1 mGy.

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“…It could be conceivable that this luminescence is caused by Ag + Ag + dimer, Ag + , or both. 26) Luminescence around 400 nm would be due to Ag 2 + confirmed in PL. Fig.…”

Section: Jcs-japanmentioning

confidence: 89%

“…In comparison with the previous report, it is inferred that these emissions are due to Ag 2 + . 26) On the other hand, when excitation and emission spectra after X-ray irradiation were evaluated, a broad emission from 550 to 700 nm newly appeared. The spectral feature was almost the same in all the Ag-doped samples.…”

Section: Jcs-japanmentioning

confidence: 99%

Evaluation of optical and radio-photoluminescence properties in Ag-doped 30KPO3–70Al(PO3)3 glasses

Shiratori

Isokawa

Samizo

et al. 2019

J. Ceram. Soc. Japan

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We prepared glass samples with a chemical composition of 30KPO 3 70Al(PO 3) 3 by the melt quenching method. As a radio-photoluminescence (RPL) emission center, Ag 2 O (0, 0.1, 0.3, 1.0 and 3.0%) was doped in these glasses. Before X-ray irradiation, Ag-doped samples showed a blue luminescence upon 254 nm excitation while they exhibited an orangish luminescence upon 304 nm excitation after X-ray irradiation. We evaluated dosimeter properties such as dose response properties of RPL, fading and thermally stimulated luminescence (TSL) glow curves. Dose response function in RPL emission indicated the lower detection limit of 100 mGy. In addition, TSL glow curve of Ag-doped 30KPO 3 70Al(PO 3) 3 showed that accumulated carriers in the samples were released at around 85°C and easily re-excited at room temperature.

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Observation and partly characterisation of silver nanoparticles in X-ray irradiated radiophotoluminescent phosphate glass

Cited by 13 publications

References 27 publications

A comparative study of optical and radiative characteristics of X-ray-induced luminescent defects in Ag-doped glass and LiF thin films and their applications in 2-D imaging

A comparative study of optical and radiative characteristics of X-ray-induced luminescent defects in Ag-doped glass and LiF thin films and their applications in 2-D imaging

A novel disk-type X-ray area imaging detector using radiophotoluminescence in silver-activated phosphate glass

Evaluation of optical and radio-photoluminescence properties in Ag-doped 30KPO<sub>3</sub>–70Al(PO<sub>3</sub>)<sub>3</sub> glasses

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