A Tissue-Equivalent Radioluminescent Fiberoptic Probe for In-Vivo Dosimetry Based on Mn-Doped Lithium Tetraborate

Santiago, M.; Prokić, M.; Molina, P.; Marcazzó, J.; Caselli, E.

doi:10.1007/978-3-642-03902-7_104

Cited by 9 publications

(4 citation statements)

References 19 publications

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“…Several red-emitting phosphors have been studied as FOD detectors so far. For instance, Li 2 B 4 O 7 (Mn)-based FOD probes demonstrated to have a response similar to soft tissue and emission at 600 nm related to Mn-centres has been observed (Santiago et al, 2009). BC-430 red emitting plastic scintillator has been also investigated as a possible tissue equivalent FOD detector, which provides increased signal when coupled to a photodiode (Clift et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Performance of ZnSe(Te) as fiberoptic dosimetry detector

Ramírez

Martı́nez

Marcazzó

et al. 2016

Applied Radiation and Isotopes

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Section: Introductionmentioning

confidence: 99%

Performance of ZnSe(Te) as fiberoptic dosimetry detector

Ramírez

Martı́nez

Marcazzó

et al. 2016

Applied Radiation and Isotopes

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“…The commercial organic scintillator BCF-60 is made out of a polystyrene-based core and a PMMA cladding and with an extra mural absorber often used to eliminate optical crosstalk and radiation-resistance characteristics. The scintillation yield is proportional to the dose-rate, emitting approximately 7100 photon/MeV, hence it is suitable for dosimetry, and is characterized by an emission peak at 530 nm [13].…”

Section: Scintillating Fiber-optic Dosimeters (Sfods)mentioning

confidence: 99%

Validation of dose measurements by scintillating fiber optic dosimeters for medical applications

2013

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Organic scintillators have been promoted and widely used in scintillating fiber-optic dosimeters (SFOD) due to their tissue-equivalent characteristics, small sensitive volume combined with high spatial resolution, and emission of visible light proportional to the absorbed electron and gamma dose rate. In this paper we will present the validation of Monte Carlo simulations of dose measurements assisted by scintillating fiber optic dosimeters operating in the visible spectral range, in the context of the development of fiber optic dosimeters targeted to Brachytherapy. The Monte Carlo simulation results are compared to measurements performed with SFOD test probes, assembled with BCF-60 (Saint Gobain) samples of 1 mm diameter and 0.35 to 1.5 cm length, coupled to PMMA optical fiber. The optical signal resulting from scintillation and Cherenkov light is transmitted through an additional optical fiber link to a remote measuring device. For SFOD probes irradiation a dedicated PMMA phantom was used. The results were validated against measurements obtained with a properly calibrated pinpoint ionization chamber (PTW). The probes were positioned in a radial arrangement, with a radioactive source at its center point. The γ-rays source is a Nucletron Microselectron-V2 192 Ir. The dose curves are obtained according to the different positions in the phantom with the SFOD dosimeters. The system is able to use a Fiber Optic Multiplexer (FOM) controlled with Labview software.

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“…Such a fiber only has the role in guiding the optical signal to the optical detection part of the sensor . Other implementations used LTB:Mn; LTB:Cu and LTB:Cu,Ag,P (Santiago et al, 2009); GaN (Pittet et al, 2009). Three types of inorganic scintillating material (Gd 2 O 2 S:Tb, Y 3 Al 5 O 12 :Ce, and CsI:Tl) fixed with an optical epoxy to the end of a bundle of multimode POFs, used to guide the scintillating radiation towards a photomultiplier, were tested as a tritium sensors (Jang et al, 2010c).…”

Section: Extrinsic Optical Fiber Sensorsmentioning

confidence: 99%