TY - JOUR
T1 - Temperature measurements by thermal radiation during ArF excimer laser ablation with gelatin gel
AU - Ishihara, Miya
AU - Arai, Tsunenori
AU - Kikuchi, Makoto
AU - Nakano, Hironori
AU - Obara, Minoru
PY - 1998/12/1
Y1 - 1998/12/1
N2 - We measured temperature elevation during Photorefractive Keratectomy (PRK) by thermal radiation. The thermal radiation from ablating surface of gelatin gel (15%wt) by ArF excimer laser was detected by a MCT (Mercury Cadmium Telluride) detector with 1 μs rise time. The measured signal increased sharply just after the laser pulse and decreased quasi-exponentially. We calculated the temperature elevation using Stefan-Boltzmann radiation law. The maximum temperature elevation was 97 °C at 208 mJ/cm2 in laser fluence. The temperature elevation over 60 °C was kept for 85 μs. These temperature elevation might induce possible heat damage on ablated surface. Our high temporal resolution temperature monitoring may be available to achieve safety and precise PRK.
AB - We measured temperature elevation during Photorefractive Keratectomy (PRK) by thermal radiation. The thermal radiation from ablating surface of gelatin gel (15%wt) by ArF excimer laser was detected by a MCT (Mercury Cadmium Telluride) detector with 1 μs rise time. The measured signal increased sharply just after the laser pulse and decreased quasi-exponentially. We calculated the temperature elevation using Stefan-Boltzmann radiation law. The maximum temperature elevation was 97 °C at 208 mJ/cm2 in laser fluence. The temperature elevation over 60 °C was kept for 85 μs. These temperature elevation might induce possible heat damage on ablated surface. Our high temporal resolution temperature monitoring may be available to achieve safety and precise PRK.
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M3 - Conference article
AN - SCOPUS:0032257798
VL - 4
SP - 1873
EP - 1874
JO - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
JF - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
SN - 1557-170X
T2 - Proceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6)
Y2 - 29 October 1998 through 1 November 1998
ER -