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positron n.【物理學】正子,陽電子,正電子。

positronium

Positrons and neutrinos are produced during the process , and are the telltale trace of the nuclear fusion reaction inside the sun V ,那就可以和另外一粒質子結合,釋放能量。這過程產生正電子及中微子,它們是太陽內部核融合反應的印記。

A series of staging investigations were undertaken , including positron emission tomography ( pet ) scan , which revealed high risk of metastasis to the cervical lymph nodes 一系列的檢查(包括正子造影)發現有高機率頸部淋巴結轉移。

The basic electronics of positron imaging systems are composed of the preamplifier , shaper , main amplifier , constant fraction discriminator ( cfd ) and so on 有用的數據采入計算機后,對其進行相關的處理后進行圖像重建。

Positron emission tomography is a kind of the highest level medical imaging equipments among the nuclear medical domain 正電子發射斷層成像( positronemissiontomography )是核醫學領域內最高水平的功能成像技術。

Radionuclide imaging devices - characteristics and test conditions - part 1 : positron emission tomographs iec 61675 - 1 : 1998 ; german version en 61675 - 1 : 1998 放射性核素影像裝置.性能和試驗條件.第1部分:定位放

Positron imaging as a biomedical research technique and clinical diagnostic procedure has been widely used 正電子成像( positronimaging )作為一種生物醫學研究技術和臨床診斷手段已經得到了廣泛的應用。

Positron emission tomography ( pet ) is a non - invasive method to detect the distribution of radionuclide in vivo 正電子發射體層攝影術是一種無創性的探測生理性放射性核素在機體內分布的斷層顯像技術。

It shows that the technique of annihilation of slow positron is a good method in monitoring the defect in sio2 同時也說明慢正電子湮沒技術在研究sic上的sio _ 2中缺陷的變化是可行的實驗方法。

In march of this year , ipc acquired positron public safety systems , the montreal - based global provider of public safety solutions Ipc進行自主研發和生產,其系統的穩定性通常高達99 . 999 % 。

Antimatter / matter reactions have practical applications in medical imaging , see positron emission tomography ( pet ) 反物質/物質反應在醫學成像有實際應用,注意正電子放射斷層攝影術( pet ) 。

The engineering of the electron - positron collider that we have completed also ranks among the world ' s most advanced technologies 我們的正負電子對撞機工程在全世界也是居于前列的。

Radionuclide imaging devices - characteristics and test conditions - part 1 : positron emission tomographs 放射性核素影像裝置.性能和試驗條件.第1部分:正電子放射層析x射線攝影機

Radionuclide imaging devices - characteristics and test conditions - part 1 : positron emission tomographs 放射性核素成像設備.特征和試驗條件.第1部分:正電子放射x線體層照片

Meanwhile , positrons from the decay of a form of radioactive sodium are separately slowed and accumulated 同時,來自放射性鈉一種形式的衰減正電子被慢慢分開且累積起來。

Radionuclide imaging device - characteristics and test conditions - part 1 : positron emission tomograph 放射性核素成像設備性能和試驗規則第1部分:正電子發射斷層成像裝置

Cyclotron systems for positron emissions tomography - part 1 : requirements for constructional radiation protection 正電子釋放斷層攝影術用回旋加速器系統.第1部分:結構

Cyclotron systems for positron emission tomography - part 2 : radiation protection labyrinths and wall entrances 正電子放射層析x射線攝影法用回旋加速器系統.第2部分

Radionuclide imaging devices - characteristics and test conditions - positron emission tomographs 放射性核素影像裝置.性能和試驗條件.正電子放射層析x射線攝影機

Quality control of nuclear medicine instruments - part 4 : constancy testing of positron emission tomographs 核醫療測量系統的質量檢驗.第4部分:正電子放射x線體