聚焦幾何形狀 的英文怎麼說

中文拼音 [jiāoxíngzhuàng]
聚焦幾何形狀 英文
focusing geometry
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : Ⅰ形容詞1 (物體受熱失去水分 呈現黃黑色並發硬、發脆) burnt; scorched; charred 2 (著急) worried;...
  • : 幾代詞1. (多少, 用於詢問數量和時間) how many 2. (表示不定的少數目) a few; several; some
  • : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
  • 聚焦 : [物理學] (使光或電子束等聚集於一點) focus; focusing; concentrate
  1. According to geometrical focusing theory, the gamma knife can focus in spirals 30 beams of co - 60 gamma rays through a collimator to form a high - quality high - dose radiation field. the size of radiation filed can be varied and shaped according to tumor size for 3d radiotherapy. therefore, it can effectively increase radiation dose to tumor tissues and decease radiation dose to normal tissues

    根據原理,將30束鈷60伽瑪射線通過準直后經一個固定的軸線旋轉成品質優良的高劑量區分佈,經治療計劃系統的優化,可使高劑量區的劑量分佈,在三維方向上和腫瘤的一致,從而實現三維適放射治療。
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