Properties of Radiophotoluminescent Glass Dosemeter Systems Using Pulsed Laser UV Excitation

Piesch, E.; Burgkhardt, B.; Fischer, M.; Röber, H.G.; Ugi, S.

doi:10.1093/oxfordjournals.rpd.a079826

Cited by 48 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, the PL around 635 nm included some dose-independent intrinsic components. PL has been reported to have at least three different decay time components: the short-term component (<2 µs), the RPL component (2-10 µs), and the long-term component (>20 µs) (Piesch et al, 1986). The short-and long-term components are dose independent and are called "predose" in the RPL readout process.…”

Section: Methodsmentioning

confidence: 99%

“…The RPL light scope employs a remote-sensing technique to measure in situ the radiation dose of an RPL detector placed at a distance. The operating principle of the RPL light scope is based on the analysis of the decay time components of the photoluminescence (PL) (Piesch et al, 1986). Figure 1 shows a photograph of a performance test of the RPL light scope.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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%

Section: Introductionmentioning

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

“…Radiophotoluminescence (RPL) of silver-activated metaphosphate glass (glass dosimeter) is well known to be proportional to absorbed dose (Piesch et al, 1986).…”

Section: Introductionmentioning

confidence: 99%

Flexible sheet with radiophotoluminescence glass beads for remotely monitoring high beta-surface-contamination

Zushi

Sato

Kato

et al. 2014

Radiation Measurements

View full text Add to dashboard Cite

A flexible sheet was made with radiophotoluminescence (RPL) glass beads on an experimental basis for visualization of high beta-surface-contamination. A simple RPL observation system for remote contamination monitoring was constructed with a homemade UV floodlight and a commercially available digital camera with supplementary optical lenses and filters. In preliminary experiments, RPL images were well observed with the digital camera of the present system. Their precise RPL intensity was determined after the correction of nonlinear response of the camera. It was expected from experiments that RPL images of beta-surface-contamination could be quantitatively evaluated through calibration, i.e., the conversion of camera images to dose data on the sheet-type glass dosimeter.

show abstract

“…As the basic characteristics of these Ag m X+ centres have been studied, a readout system has been developed for the measurement of the RPL of the glass dosimeter [4][5][6] based on a time-resolved technique using a pulsed UV nitrogen laser excitation. The basic principle of the conventional reader is as follows [4]: the radiation-induced component (normally, the orange RPL with lifetime values of 2 μs < t ≤ 20 μs) is only integrated by subtracting the radiation independent short-term (t ≤ 2 μs) and long-term (t > 20 μs) components of the pre-dose fluorescence from the total RPL values.…”

Section: Introductionmentioning

confidence: 99%

Silver-activated radiophotoluminescent glass: band assignments and a novel readout system using a modulated UV laser diode

Kurobori¹,

Zheng²,

Zhao³

2010

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

We investigated the assignments and characteristics of the X-ray-induced colour centres in a silver-activated radiophotoluminescent glass. The inducedabsorption spectrum was decomposed into six Gaussian bands, which were, in turn, attributed to the Ag + , Ag 3 + or Ag 3 2+ , Ag 2 + , Ag 2+ , Ag 0 and hole-trap centres, respectively, by means of optical and thermal measurements. All components of the blue and orange radiophotoluminescence (RPL) in a silver-activated phosphate glass were confirmed to be X-ray-induced colour centres. We also proposed and constructed a new readout system for the measurement of the RPL of the glass dosimeter that considers the characteristics of the radiation-induced bands.

show abstract

Properties of Radiophotoluminescent Glass Dosemeter Systems Using Pulsed Laser UV Excitation

Cited by 48 publications

References 0 publications

Radiophotoluminescence light scope for high-dose dosimetry

Radiophotoluminescence light scope for high-dose dosimetry

Flexible sheet with radiophotoluminescence glass beads for remotely monitoring high beta-surface-contamination

Silver-activated radiophotoluminescent glass: band assignments and a novel readout system using a modulated UV laser diode

Contact Info

Product

Resources

About