Radiation characteristics of homemade radiophotoluminescent glass dosimeter

Lee, Moon Sing; Liao, Yi Jen; Huang, Yen‐Hua; Lee, Jeng Hung; Hung, Shih‐Kai; Chen, Tou-Rong; Hsu, Shih Ming

doi:10.1016/j.radmeas.2011.02.010

Cited by 11 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silver-activated metaphosphate glass was produced from reagent-grade powders using a melting method (Lee et al, 2011). NaPO 3 , Al(PO 3 ) 3 and AgCl powders were mixed in a mullite crucible.…”

Section: Methodsmentioning

confidence: 99%

Radiophotoluminescence light scope for high-dose dosimetry

Sato

Zushi

Sakiyama

et al. 2015

Radiation Measurements

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

Section: Methodsmentioning

confidence: 99%

Radiophotoluminescence light scope for high-dose dosimetry

Sato

Zushi

Sakiyama

et al. 2015

Radiation Measurements

View full text Add to dashboard Cite

show abstract

“…However, the elemental composition of these phosphate glasses cannot be modified by users. We therefore fabricated an RPL phosphate glass dosimeter in our laboratory using a conventional method [12,13] , namely, melting industrial-grade powders of sodium metaphosphate (NaPO 3 ) and aluminum metaphosphate (Al(PO 3 ) 3 ) (Taihei Chemical Industrial Co. Ltd.). The powders were homogenized and placed in crucibles.…”

Section: A) Fabrication Of the Radio-photoluminescence Glass Dosimetermentioning

confidence: 99%

“…The evaluated wavelength of the peak was 650 nm. The proton beam irradiation on RPL(Cu) glass was done within an area of 0.55 cm 2 using a beam current of 40 pC/s, with a scanning speed of 0.2 ms/point, which gives a beam fluence of approximately 4×10 12 ions/cm 2 . Evaluation of concrete information about the sensitiveness of RPL(Cu) for the beam irradiation is left for future investigations.…”

Section: B) Comparison Of Rpl Spectra Of X-ray Irradiationmentioning

confidence: 99%

Evaluation of Radio-Photoluminescence Spectra of Copper-Doped Phosphate Glass Dosimeter Irradiated with Ionized Particles

Parajuli

Kada

Kawabata

et al. 2016

KEM

View full text Add to dashboard Cite

A radio-photoluminescence (RPL) dosimeter with a copper-ion luminescent center was fabricated to evaluate its response in ionized particle detection. A focused proton microbeam with varying energies up to 3 MeV and heavy ions of 490 MeV osmium (Os) were employed along with X-rays to evaluate its performance in micrometer-scale radiation monitoring. The response to ionized particles was evaluated under focused proton beam irradiation where the peak wavelength differed from that obtained under X-ray irradiation. Two peaks were observed under Os irradiation where the secondary-generated particles and photons have a significant effect on the dosimeter. The results suggest that the fabricated RPL dosimeter with copper luminescence center could be used to estimate the irradiation effect of primary ionized particles separately from the effects of secondary particles, photons, and environmental background radiation.

show abstract

“…A commercially available phosphate glass dosimeter (AGC Techno Glass GD-450) with a silver (Ag + ) activator was supplied by Chiyoda Technol. Note that the elemental composition of their glass cannot be modified according to the user's request, so handmade RPL glass was fabricated by a conventional method, [29][30][31] which involved the melting of industrial-grade powders of sodium metaphosphate (NaPO 3 ) and aluminum metaphosphate [Al(PO 3 ) 3 ] (Taihei Chemical Industrial). Reagent-grade silver chloride (AgCl) and copper chloride (CuCl) were separately added to crucibles and placed in an electric furnace after homogenization of the above powders at the appropriate composition.…”

Section: Preparation Of Rpl Glass Dosimeter For Microdosimetrymentioning

confidence: 99%

In situ ion-beam-induced luminescence analysis for evaluating a micrometer-scale radio-photoluminescence glass dosimeter

Kawabata

Kada

Parajuli

et al. 2016

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

Micrometer-scale responses of radio-photoluminescence (RPL) glass dosimeters to focused ionized particle radiation were evaluated by combining ion-beam-induced luminescence (IBIL) and proton beam writing (PBW) using a 3 MeV focused proton microbeam. RPL phosphate glass dosimeters doped with ionic Ag or Cu activators at concentrations of 0.2 and 0.1% were fabricated, and their scintillation intensities were evaluated by IBIL spectroscopy under a PBW micropatterning condition. Compared with the Ag-doped dosimeter, the Cu-doped dosimeter was more tolerant of the radiation, while the peak intensity of its luminescence was lower, under the precise dose control of the proton microprobe. Proton-irradiated areas were successfully recorded using these dosimeters and their RPL centers were visualized under 375 nm ultraviolet light. The reproduction of the irradiated region by post-RPL imaging suggests that precise estimation of irradiation dose using microdosimeters can be accomplished by optimizing RPL glass dosimeters for various proton microprobe applications in organic material analysis and in micrometer-scale material modifications.

show abstract

Radiation characteristics of homemade radiophotoluminescent glass dosimeter

Cited by 11 publications

References 7 publications

Radiophotoluminescence light scope for high-dose dosimetry

Radiophotoluminescence light scope for high-dose dosimetry

Evaluation of Radio-Photoluminescence Spectra of Copper-Doped Phosphate Glass Dosimeter Irradiated with Ionized Particles

In situ ion-beam-induced luminescence analysis for evaluating a micrometer-scale radio-photoluminescence glass dosimeter

Contact Info

Product

Resources

About