放射線量計 的英文怎麼說

中文拼音 [fàngshèxiànliángjì]
放射線量計 英文
dosage meter
  • 放 : releaseset freelet go
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 放射線 : bone seeker
  • 放射 : radiate; emit; blas; radiation; emission; shooting; shedding; abjection; emanation; effluence
  1. In this thesis, ga is used to optimize the beam weights of intensity modulated radiation therapy ( imrt ) inverse planning, and 2d and 3d isodose contour as well as dose volume histogram ( dvh ) are used to evaluate the treatment plan

    本文應用遺傳演算法優化逆向調強放療計劃中射束的權重，用二維等劑量線、三維劑量分佈和劑量體積直方圖來評估計劃的優劣。
  2. Dose - rate meter

    放射線劑量率計
  3. Based on the original data of tm in 1988, 1992 and 1998, then after some processing and analysis, the author have the thematic data of land - use by interpretation. on the basis of them, the author made the analysis of land - use for this area based on the spacial analysis of gis and the method of comparison between result of land - use classification as follows : the method of aggregating analysis, the analysis of urbanization, the analysis of the transformation rate of cultivated land, the analysis of the driving force of land - use change and the sustainable use of land. the conclusions may be demonstrated below : the cultivated land decreases with the patchs fragment ; road spreads radialy surround second - ring road ; the urban land expands quickly toward southwest along the major roads and be concentrative. rural land and industry increse rapidly with dispersing ; 0thers change slowly. the major driving forces of land - use change in this area are the rapid expansion of urban and rapid growth of population, foreign investment and the development of tertiary industry which was based upon the real estate. according the trendency of land - use change, the author consider that we must insist on the way of the sustainable use of land based on protecting the cultivated land

    在此基礎上，應用分類結果比較法，在gis各種空間分析功能（幾何量算、統計分析、疊加分析及緩沖區分析）的支持下，對該區土地利用變化進行了如下分析：土地利用綜合分析、城市化進程分析、耕地轉化率分析、土地利用變化因素分析及土地的可持續利用分析。結果表明：該區土地利用變化主要表現為耕地大量減少，斑塊破碎化；交通用地沿二環線呈放射狀向四周擴展；城鎮用地沿交通干線向西南方向擴張迅速，用地趨于集中；農村居民點和工礦業用地增加，用地趨于分散；其它用地變化較慢。這一用地變化的主導因素是城鎮用地擴展快、人口增長迅速、外資的大量投入及以房地產為主的第三產業的快速發展。
  4. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。
  5. Laser diodes : feedback and stimulated emission. cavity design ; double heterostructure concept. quantum well, wire, dot active regions. strained layers ; pseudomorphic active regions

    回饋與受激放射。共振腔設計，雙異質結構之概念，量子井、量子線與量子點之主動層。應變層，假晶材料之主動層。
  6. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - dosimetry for radiation protection over the energy ranges 8 kev to 1, 3 mev and 4 mev to 9 mev

    校準劑量計和劑量強度計及測定作為光子能函數靈敏度用x和基準放射線.能量范圍在8kev - 1 ， 3mev和4mev - 9mev放射保護用放射量測定
  7. Dosimeters with ionization chambers for photon and electron radiation in radiotherapy ; rules for manufacture

    放療用電離室的光子射線和電子射線劑量計.製造規則
  8. Radiation operating - rooms in domestic big hospitals are usually designed as massive concrete structure, which has enough depth, density and quality itself and can prevent ray penetration

    摘要國內大型醫院的放射操作室常設計為大體積混凝土，利用混凝土本身的厚度、密實度及質量來防放射線的穿透。
  9. 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

    根據幾何聚焦原理，將30束鈷60伽瑪射線通過準直后經一個固定的軸線旋轉聚焦，形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形狀一致，從而實現三維適形放射治療。
  10. X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - radiation characteristics and production methods

    校準劑量計和劑量強度計及測定作為光子能函數靈敏度用x和基準放射線.第1部分:放射特性和產生方法
  11. Design, location and application criteria for installed area gamma radiation dose rate monitoring equipment for use in nuclear power plants during normal operation and anticipated operational occurrences

    在正常操作和預料使用偶發事件中，核發電廠使用的射線輻射面積放射線量率監控設備的設計安裝和應用準則
  12. Some key factors in design of kev radioactive ion beam facility are discussed. they are extension of primary ion beam line, target / ion source, selection of target materials, optical calculation of the radioactive ion beam system, measurement of weak radioactive ion beam and overall efficiency of the system

    本文介紹了kev放射性核束裝置中幾個關鍵部分的設計和初步實驗結果，包括系統總體概況，初級束流線，靶源系統，靶材料選擇，系統光路，低能放射性弱束流的測量，放射性劑量及輻射防護，系統總體效率評估等。
  13. Before we actualize the radiation to the patient, we must plan the therapy and simulate the process of the treatment, calculate the distribution of the radiation doses to evaluate the treatment planning. due to the computer visualization technology, we got an accurate way, intuitionistic and efficient, to constitute the treatment planning

    為了實現精確的放射治療，我們需要在實際進行放射治療之前，制定正確的放療計劃，並對射線的放療過程進行模擬，計算放射劑量的分佈情況，從而明確放療效果，確定放療計劃的優劣。
  14. According to the principal of radiobiologg and the structure, this article discusses the important meaning of the measurement test for safe operation of the linear accelerator

    本文根據放射生物學原理和醫用直線加速器的結構，全面地論述了計量檢測對于直線加速器安全運行的重要意義。
  15. For radioactive workplace and the transportation and storage of radioactive isotope, the employer should equip risk - prevention equipment and alarm devices, and ensure the employees exposed to radiation equipped with dose meter

    對放射工作場所和放射性同位素的運輸、貯存，用人單位必須配置防護設備和報警裝置，保證接觸放射線的工作人員佩戴個人劑量計。
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