... electron double resonance 电子双共振 electron ejection 电子发射 electron emission 电子发射 ...
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1.1场发射显示技术研究概况 场致电子发射(Field Electron Emission)是指在外加电场的作用下,材料表面势垒降低和宽度变窄,电子因为隧穿效应穿透势垒进入真空的发射过程。
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正电子发射 positron radiation ; PET-CT ; positron emission tomography-computed tomography
正电子发射断层扫描 PET ; positron emission tomography ; positron emission computed tomography ; positive electron tomography
热电子发射 hot electron emission ; [电子] thermionic emission ; thermo-electronic emission ; thermal electron emission
电子发射体 [物] electron emitter
俄歇电子发射 auger electron emission
二次电子发射 secondary emission ; second electron emission ; secondary-electron emission
自动电子发射 auto-electronic emission ; emission autoelectronic
二次电子发射系数 secondary electron yield ; SEY ; secondary electron emission yield
正电子发射断层显像 positron emission tomography ; PET ; positron emission computed tomography ; position emission computerized tomography
The electron emission of the cathode is enhanced by forming a high secondary electron emission property film on the surface.
通过阴极表面涂覆的二次电子发射材料,进一步增强阴极的电子发射能力。
参考来源 - 纳米氧化锌冷阴极的制备与研究The most important application field of diamond is that the diamond film is being widely used in high frequency,high power, or high temperature electric devices as an electron emission material.
在金刚石膜的应用前景中最为重要的一个领域是,金刚石膜作为电子发射材料在高频、大功率和高温电子器件中的使用。
参考来源 - 纳米金刚石薄膜次级电子发射特性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
在患者安静状态下和在使用潘生丁时,用正电子发射断层摄影测量其特殊微血管血流速。
Positron emission tomography imaging was performed to measure specific microvascular blood flow at rest and during pharmacological vasodilation by IV dipyridamole.
他们做了一个成像测试正电子发射断层或PET测试脑功能,看看大脑是如何使用好葡萄糖或糖。
And they did an imaging test called positron emission tomography or PET to test for brain function by looking to see how well the brain USES glucose or sugar.
通话20分钟后,医生给每个人注射一种具有放射性的糖,然后利用正电子发射断层摄影仪对他们的大脑进行扫描。
Twenty minutes into the call, clinicians injected a radioactive form of sugar into each person, then began imaging their brains with a Positron Emission Topography machine.
So we can actually pop an electron or eject an electron from any single orbital that is occupied within the atom.
任何一个被占据轨道,打出一个电子,或者说发射出一个电子。
So what we're saying here is the incident energy, so the energy coming in, is just equal to the minimum energy that's required to eject an electron.
这里我们来讨论一下,入射能量正好等于,发射出一个电子所需要的最低能量的情况。
We're only using up a little bit to eject the electron, then we'll have a lot left over.
如果我们只需要用很少一部分来发射出电子,那么我们可以得到很多的剩余能量。
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