Temperature measurements by thermal radiation during ArF excimer laser ablation with gelatin gel

Miya Ishihara, Tsunenori Arai, Makoto Kikuchi, Hironori Nakano, Minoru Obara

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1873-1874
ページ数2
ジャーナルAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
4
出版ステータスPublished - 1998 12月 1
イベントProceedings of the 1998 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 6) - Hong Kong, China
継続期間: 1998 10月 291998 11月 1

ASJC Scopus subject areas

  • 信号処理
  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 健康情報学

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