Visualization of high radiation field by radiophotoluminescence photography

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

doi:10.1016/j.radmeas.2014.06.011

Cited by 20 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Glass beads were well formed in the cooling process in air, thanks to the surface tension and uniform heat transfer. (6,7) A flexible RPL glass sheet can be made of the bead-type RPL glass dosimeters and is expected to be useful for two-dimensional radiation imaging. The bead-type RPL glass dosimeters are also expected to be effectively used for dose monitoring in radioactively contaminated areas.…”

Section: Methodsmentioning

confidence: 99%

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

2017

Sensors and Materials

View full text Add to dashboard Cite

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.

show abstract

Section: Methodsmentioning

confidence: 99%

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

2017

Sensors and Materials

View full text Add to dashboard Cite

show abstract

“…The curves with the white arrows are the transmittance of the optical filters. Polypropylene hollow balls fill the center of the sphere 3) .…”

Section: Radiophotoluminescence (Rpl) Photography Devicementioning

confidence: 99%

“…Therefore, in our research group, we have been developing a spatial dose distribution visualization technology 3) based on the RPL characteristics of silver-activated phosphate glass. Figure 1 shows a schematic of the RPL photography method.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of Spatial Dose Distribution of High Radiation Field by Radiophotoluminescence Photography

Okumura

Maekawa

Zushi

et al. 2017

Radiat. Saf. Manage.

Self Cite

View full text Add to dashboard Cite

"This paper is a translation from the Japanese (Jpn. J. Radiat. Manag., Vol 15, 40-45, 2016)" Radiophotoluminescence (RPL) photography has been proposed for the measurement of the spatial dose distribution of high radiation fields. A pulsed UV-LED illuminator was prepared as an excitation light source for the RPL photography. The fluorescence image of RPL material was observed by a gated intensified CCD camera. In a preliminary experiment, several tens of spherical RPL detectors were placed near an intense 60 Co source. The pulsed UV-LED illuminator and the gated intensified camera were pulse-operated to obtain the RPL photograph of the ball-shaped RPL detectors. The spatial dose distribution was calculated from the brightness of obtained RPL images.

show abstract

“…In our previous works (Sato et al, 2014;Zushi et al, 2014), we proposed an RPL photographing technique for visualizing high-level radiation fields. A number of RPL glass detectors were placed in a high-level radiation field.…”

Section: Introductionmentioning

confidence: 99%

Radiophotoluminescence light scope for high-dose dosimetry

Sato

Zushi

Sakiyama

et al. 2015

Radiation Measurements

Self Cite

View full text Add to dashboard Cite

A radiophotoluminescence (RPL) light scope is a remote-sensing technique for measuring in situ the radiation dose in an RPL detector placed at a distance. The RPL light scope is mainly composed of an ultraviolet (UV) pulse laser, telescopic lenses, a photomultiplier tube, and camera modules. In a performance test, some RPL detectors were placed at distances up to 30 m and were illuminated with a pulsed UV laser beam. The photoluminescence responses of the RPL detectors were analyzed using this scope. Their radiation doses were determined from the amplitude of the given component of the photoluminescence responses. The RPL readout could be repeated without fading, and its amplitude exhibited good linearity at a dose ranging from 0.1 to 60 Gy. Furthermore, a two-dimensional distribution of radiation dose was obtained by laser scanning on an RPL detector. It was confirmed that the RPL light scope was a useful remote-sensing tool for high-dose dosimetry.

show abstract

Visualization of high radiation field by radiophotoluminescence photography

Cited by 20 publications

References 14 publications

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

Visualization of Radiation Dose Distribution Utilizing Radiophotoluminescence in Glass Dosimeter

Measurement of Spatial Dose Distribution of High Radiation Field by Radiophotoluminescence Photography

Radiophotoluminescence light scope for high-dose dosimetry

Contact Info

Product

Resources

About