頁籤選單縮合
| 題 名 | 遠隔治療機之屏蔽輻防安全評估=Radiation Safety Evaluation of Teletherapy Machine |
|---|---|
| 作 者 | 林招膨; 林松彥; 劉幕臺; 朱鐵吉; | 書刊名 | 放射治療與腫瘤學 |
| 卷 期 | 6:1 1999.03[民88.03] |
| 頁 次 | 頁63-72 |
| 分類號 | 416.36 |
| 關鍵詞 | 主射束; 二次輻射; 劑量限制; Primary beam; Secondary radiation; Dose constraint; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本部門為提昇放射線治療技術與醫療品質,新添乙部Siemens PRIMUS直線加速器 ( 10/15 MV 雙光子能量),因空間及治療流程考量, 原鈷六十治療室( LAI )擬裝設移 入原 LA Ⅱ之 6/10 MV 雙光子能量直線加速器,原鈷六十治療機則予移入隔鄰空間。 舊有 按鈷六十能量( LA Ⅰ)及 10 MV 光子( LA Ⅱ)計算的屏蔽建構物, 包括屏蔽厚度、迷 宮長度、鉛門設計…等,由於放射線能量提昇及空間重新規劃等因素,必須重新計算與評估 。 本論文根據 NCRP49、51、33、102 號報告書及 ICRP60 號報告書與行政院原子能委員會 游離輻射防護安全標準,考慮整體空間之主射束與二次輻射量及法規劑量限制後,需補強屋 頂厚度、迷宮長度及鉛門厚度。計算的過程及相關屏蔽問題將在文中討論。 |
| 英文摘要 | For upgrade radiotherapy techniques and medical quality, our department replaces Co-60 unit ( room LA Ⅰ) with the linear accelerator ( 6/10 MV dual energy, moved from room LA Ⅱ) and set up an new Siemens PRIMUS linear accelerator ( linac, 10/15 MV dual energy ) in LA Ⅱ. The Co-60 unit will move to another compartment. Since the higher radiation energy of linacs and new arrangement of the treatment room, the previous shielding including the thickness of barriers and lead door, the length of maze....etc, need be re-evaluated. Calculations are based on NCRP49,51,33,102,ICRP60 and AEC dose constraint, and the results show the shielding deficientcy on ceiling, maze and lead door. The process of the calculation and relative shielding problems will be discussed in this paper. |
本系統中英文摘要資訊取自各篇刊載內容。