Infrared radiation thermometer using a silver halide optical fiber for thermal ablation

Yoo, Wook Jae; Cho, Dong Hyun; Jang, Kyoung Won; Shin, Sang Hun; Seo, Jeong Ki; Chung, Soon−Cheol; Lee, Bongsoo; Park, Byung Gi; Moon, Jooho; Cho, Young-Ho; Kim, Sin

doi:10.1007/s10043-009-0073-9

Cited by 7 publications

(7 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 10 shows the temperature of water, which was measured using a thermocouple, versus the output voltage of FOT as a function of the IR signal. The output voltage of the FOT increased as the temperature of water increased because the intensity of the IR signal transmitted through the IR fiber is proportional to the temperature of the heat source [ 17 , 18 , 19 , 20 , 21 , 22 ]. The mathematical form of the linear fit line to the curve is also presented in Figure 10 and R 2 was found to be 0.9982.…”

Section: Resultsmentioning

confidence: 99%

“…Next, to measure IR signals induced by temperature, an embedded-type thermometer probe (CH 2) of a FOT was also constructed. As an IR fiber, we selected a silver halide optical fiber (PIR 900/1000, Art Photonics, Berlin, Germany) that can serve as a sensing element and an IR waveguide at the same time [ 17 , 18 , 19 , 20 , 21 , 22 ]. Diameters are 0.9 mm for the core only and 1 mm including the cladding.…”

Section: Materials and Experimental Setupmentioning

confidence: 99%

“…Unlike general non-contact types of FOTs [ 17 , 18 , 19 , 20 , 21 ], this type of thermometer probe can be directly embedded in a water environment and also can measure inner temperature in real time [ 22 ]. The completed thermometer probe was connected to a thermopile (A2TPMI334OAA060, Perkin Elmer, Wiesbaden, Germany) with a sensing range from 2 to 22 μm and an amplifier system [ 21 , 22 ]. The output voltage signals from the thermopile-amplifier system are transmitted to a data acquisition (DAQ) board (USB-6008, National Instruments, Seoul, Korea) and a laptop running the program LabVIEW (NI LabVIEW™ 2013, National Instruments).…”

Section: Materials and Experimental Setupmentioning

confidence: 99%

“…Next, in the cases of FOTs, they normally use a silver halide optical fiber as an infrared optical fiber (IR fiber) to measure temperature by transmitting IR signals emitted from a heat source [ 17 , 18 , 19 , 20 , 21 , 22 ]. As a non-contact temperature sensor, those based on IR fibers have been fabricated to use in examination or treatment rooms where magnetic resonance imaging (MRI) or radiofrequency ablation (RFA) devices are installed [ 20 , 21 ]. Previous reports demonstrated that IR fiber-based FOTs have immunity to high EMI and RFI.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Temperature and X-rays on Plastic Scintillating Fiber and Infrared Optical Fiber

Lee

Shin

Jang

et al. 2015

Sensors

Self Cite

View full text Add to dashboard Cite

In this study, we have studied the effects of temperature and X-ray energy variations on the light output signals from two different fiber-optic sensors, a fiber-optic dosimeter (FOD) based on a BCF-12 as a plastic scintillating fiber (PSF) and a fiber-optic thermometer (FOT) using a silver halide optical fiber as an infrared optical fiber (IR fiber). During X-ray beam irradiation, the scintillating light and IR signals were measured simultaneously using a dosimeter probe of the FOD and a thermometer probe of the FOT. The probes were placed in a beaker with water on the center of a hotplate, under variation of the tube potential of a digital radiography system or the temperature of the water in the beaker. From the experimental results, in the case of the PSF, the scintillator light output at the given tube potential decreased as the temperature increased in the temperature range from 25 to 60 °C. We demonstrated that commonly used BCF-12 has a significant temperature dependence of −0.263 ± 0.028%/°C in the clinical temperature range. Next, in the case of the IR fiber, the intensity of the IR signal was almost uniform at each temperature regardless of the tube potential range from 50 to 150 kVp. Therefore, we also demonstrated that the X-ray beam with an energy range used in diagnostic radiology does not affect the IR signals transmitted via a silver halide optical fiber.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Materials and Experimental Setupmentioning

confidence: 99%

Section: Materials and Experimental Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Temperature and X-rays on Plastic Scintillating Fiber and Infrared Optical Fiber

Lee

Shin

Jang

et al. 2015

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…These sensors offer many advantages over conventional electrical sensors, including small size, good flexibility, remote operation, immunity to EMI or RFI, and resistance to harsh environments [ 1 – 3 ]. A number of optical thermometry methods using optical fibers have been developed, and it has been reported that fiber-optic sensors can measure temperature using infrared (IR) optical fibers [ 4 – 8 ], fiber Bragg gratings (FBGs) [ 9 – 11 ], or special materials that change some physical characteristic such as color, absorbance, and reflectance in accordance with temperature variation [ 12 – 15 ].…”

Section: Introductionmentioning

confidence: 99%

Development of a 2-Channel Embedded Infrared Fiber-Optic Temperature Sensor Using Silver Halide Optical Fibers

Yoo

Jang

Seo

et al. 2011

Sensors

Self Cite

View full text Add to dashboard Cite

A 2-channel embedded infrared fiber-optic temperature sensor was fabricated using two identical silver halide optical fibers for accurate thermometry without complicated calibration processes. In this study, we measured the output voltages of signal and reference probes according to temperature variation over a temperature range from 25 to 225 °C. To decide the temperature of the water, the difference between the amounts of infrared radiation emitted from the two temperature sensing probes was measured. The response time and the reproducibility of the fiber-optic temperature sensor were also obtained. Thermometry with the proposed sensor is immune to changes if parameters such as offset voltage, ambient temperature, and emissivity of any warm object. In particular, the temperature sensing probe with silver halide optical fibers can withstand a high temperature/pressure and water-chemistry environment. It is expected that the proposed sensor can be further developed to accurately monitor temperature in harsh environments.

show abstract

Near-infrared measurement of water temperature near micro-magnetic particle layer in a fluidic channel under induction heating

Han

Kakuta

2020

Experimental Thermal and Fluid Science

View full text Add to dashboard Cite

Infrared radiation thermometer using a silver halide optical fiber for thermal ablation

Cited by 7 publications

References 9 publications

Effects of Temperature and X-rays on Plastic Scintillating Fiber and Infrared Optical Fiber

Effects of Temperature and X-rays on Plastic Scintillating Fiber and Infrared Optical Fiber

Development of a 2-Channel Embedded Infrared Fiber-Optic Temperature Sensor Using Silver Halide Optical Fibers

Near-infrared measurement of water temperature near micro-magnetic particle layer in a fluidic channel under induction heating

Contact Info

Product

Resources

About