point gamma 中文意思是什麼

point gamma 解釋
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  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  • gamma : n 1 希臘語的第三個字母〈Γ γ ＝ 〈英國〉 G g〉；第三位的東西；【蟲類】γ紋蛾；【天文學】（亮度居於...
  1. Programme for hot cell shielding with gamma point sources

    對點狀射線源熱室屏蔽的檢驗程序
  2. Basing on the mcnp software, the author solved the matter by calculating the value of point to replacing the value of cell or surface. the research searched out a new means to solve similar matters. by using the studying result, the author programmed the gamma code, with the interface of window, which can simulate the course that a y - detector measures the radioactivity in soil and calculate the dose ratio and the chart of energy deposition

    作者以以上方法為基礎開發出了就地譜儀模擬軟體gamma ，軟體基於mcnp軟體平臺，具有可視化介面，用於模擬譜儀現場測量，可視化窗口界面使用戶可以方便地調節探測器內部結構的幾何尺寸及窗材料、測量高度、射線能量及發射率、核素在土壤中的分佈規律等參數，方便工程技術人員的使用。
  3. At first, measuring the electron recoil spectra of target room gamma ray. through the resolution of spectra we get the gamma ray spectra caused by target room. then we transform it to the zero point, the place of neutron source, and calculate the leakage gamma ray spectra t from iron sphere caused by target room gamma ray by mcnp program

    靶室產生的射線本底，通過實驗測量和模擬計算相結合的方法加以扣除，首先測量靶室產生的射線康普頓反沖電子譜，解譜得到靶室泄漏譜，將所解得的靶室泄漏譜歸一到原點，即中子源處，利用mcnp蒙卡程序輸運計算靶室射線穿透鐵球后所泄漏的能譜，最後從d ? t中子穿透鐵球伴生射線泄漏能譜s中扣除。
  4. The object of single photon emission computed tomography ( spect ) is to reconstruct an unknown radioactivity distribution inside the body from projection data consisting of the number of photon collected on a collimated gamma camera. these projections are not simple line integrals but have point - spreads due to the imperfect collimator of the detector and attenuation due to the compton scattering. so

    這種投影數據與透射ct中的數據不同，由於存在著光子的點擴散（由準直器引起）和衰減（由散射引起） ，已經不能用簡單的線積分來描述這個問題，因此相對于透射ct而言，這個領域將面臨很多困難。
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