Development of human hand phantom containing radiophotoluminescence material

Sato, F.; Maekawa, Takuji; Sakiyama, Tomoki; Zushi, Naoki; Shimizu, Kikuo; Kato, Yushi; Murata, Isao; Yamamoto, Tatsuya; Iida, Toshiyuki

doi:10.1016/j.radmeas.2015.12.006

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…The research on the preparation and evaluation of the gloves sandwiched in the bead-type glass dosimeter between acrylic binders on an organic film is currently in progress. (10) …”

Section: Methodsmentioning

confidence: 99%

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

2017

Sensors and Materials

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In the decommissioning of a nuclear power plant, especially for the decontamination of radioactive substances caused by the 2011 Fukushima nuclear power plant accident, which has affected reconstruction after the earthquake, dose evaluation and validation of the decontamination effect are very important. To prepare a novel passive-type dosimeter system, which can be applied to radiation dose monitoring and visualization of the two-dimensional distribution of ionizing radiation in a contaminated area, we tried to develop bead-and sheet-type glass dosimeters utilizing the radiophotoluminescence (RPL) phenomenon in Ag + -doped phosphate glass. It is confirmed that the bead-type glass dosimeter with a diameter of about 50 μm exhibits an intense RPL. It is found that the sheet-type glass dosimeter, which is made of bead-type glasses, is useful for the monitoring of radiation dose in a wide dose range and the visualization of dose distribution.

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“…The research on the preparation and evaluation of the gloves sandwiched in the bead-type glass dosimeter between acrylic binders on an organic film is currently in progress. (10) …”

Section: Methodsmentioning

confidence: 99%

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

2017

Sensors and Materials

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“…为了更好地研究人体四肢的剂量监测，研究人员通过制备肢体模型以预评估在诊断放射学和放射治疗的临床过程中可接受的剂量。从生物等效性的角度研究，当剂量计所用材料的 Zeff 接近人体软组织时，可以省去对能量依赖性的数学校准，因此在进行人体剂量监测(特别是辐射防护)时，通常使用轻元素组成的材料。基于此，Sato 等 [86] 使用聚氨酯树脂、银活化偏磷酸盐玻璃颗粒和空心玻璃微球制备了一种密度为 1.1 g/cm 3 且具有高辐射敏感性的 RPL 材料。该材料在 10 mGy~6×10 4 6 RPL materials for radiation dosimetry (a) Fluorescence attenuation curve (top) and novel readout technique using pulsed ultraviolet laser (bottom) [7] ; (b) Internal images of RPLGD [7] ; (c) Comparison of RPL response signals irradiated by different metal filters and different types of radiation (X, γ and β-rays) [7] ; (d) Spherical RPLGD prepared by melting method [82] ; (e) Spherical RPLGD used to monitor radioactive contaminants in harsh environments [83] ; (f) 2D dose distribution of each layer at different depths of the hand model soaked in polyester resin block (left) and 3D dose distribution of the complete structure of the hand model after X-ray irradiation [86] ; (g) Contrast enhanced image of RPL photograph after digital image processing. The inset shows RPL glass particles covered with polystyrene plate placed in a petri dish.…”

Section: D 模型用于人体的剂量监测mentioning

confidence: 99%

Research Progress of Radio-photoluminescence Materials and Their Applications

LI¹,

LI²,

LI³

et al. 2023

Journal of Inorganic Materials

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With the progress of nuclear radiation technology in China, radiation detection has been developed rapidly in recent years, which is widely used in radiation safety monitoring, radioactive medicine diagnosis and treatment, X-ray security inspection system, industrial non-destructive detection, microscopic particle track detection and many other fields. As a new radiation detection method, radio-photoluminescence (RPL) is a phenomenon in which a new luminescence center is generated inside a material under the ionizing radiation and is excited by ultraviolet light to emit light. RPL materials usually have the characteristics of storing radiation information, almost no attenuation of information, good linear dose response, high radiation 无机材料学报 sensitivity, low energy dependence and repeatable reading, which make up for the shortcomings of optically stimulated luminescence (OSL) materials and thermally stimulated luminescence (TSL) materials in storage stability and reusability. Since the RPL phenomenon was reported, RPL materials have emerged one after another, from the traditional materials as Ag-doped phosphate glass, Al2O3:C,Mg and LiF, to the novel materials as Cu-doped RPL system, Sm-doped RPL system and undoped RPL system materials, et al. Meanwhile, the applications of RPL materials have also been explored. RPL materials have become one of the indispensable materials in the field of radiation detection. Based on this, this paper summarizes the latest development of RPL materials, focuses on the luminescence principle, performance characteristics and applications of traditional & novel RPL materials. It especially compares the performance of different RPL materials in radiation detection. Finally, the advantages and disadvantages of RPL materials are summarized and analyzed. And also the development trend of RPL materials is prospected.

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“…The number of components was found to be two because the formation of two defects, namely Ag 2 + and Ag 2+ , may be responsible for the build-up process. 27) The temperature dependence of the build-up parameter t j was obtained by fitting the temperature dependence of the build-up process using Eq. (8).…”

Section: -5mentioning

confidence: 99%

“…Recently, many researchers have reported new applications of Ag-doped phosphate glasses, such as RPL dosimeters with various shapes [27][28][29] as well as real-time 30) and high-temperature-resistant RPL dosimeters. 31) However, real-time RPL dosimetry is difficult because of the build-up effect, which involves the formation of RPL centers over time.…”

Section: Introductionmentioning

confidence: 99%

Radiophotoluminescence behavior in Ag-doped phosphate glasses

Kawamoto

Koshimizu

Fujimoto

et al. 2022

Jpn. J. Appl. Phys.

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Radiophotoluminescence (RPL) is an emission phenomenon induced by the photoexcitation of luminescent centers (RPL centers) formed by ionizing radiation. Ag-doped phosphate glasses exhibiting RPL are applied in dosimeters. In this paper, we discuss the RPL behavior of Ag-doped phosphate glasses and their properties along with RPL center formation and disappearance mechanisms. When Ag-doped phosphate glasses are exposed to ionizing radiation, Ag0, Ag2+, and Agm n+, such as Ag2 +, clusters are formed because Ag+ acts as an electron and hole trap. Ag2+ is formed by the transfer of holes from PO4 3- tetrahedra. On the other hand, electrons are trapped by Ag+ to form Ag0. Subsequently, Ag2 + is formed by the association between Ag0 and Ag+ owing to the diffusion of Ag+. Ag0 is attributed to blue RPL center, while Ag2+ and Ag2 + are attributed to orange RPL centers. Moreover, Ag2 + and Ag2+ disappear upon heating at 500 and 673 K, respectively.

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Development of human hand phantom containing radiophotoluminescence material

Cited by 10 publications

References 18 publications

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

Research Progress of Radio-photoluminescence Materials and Their Applications

Radiophotoluminescence behavior in Ag-doped phosphate glasses

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