The positron cannon is ready to fire.

正电子炮准备好了。

It begins to decay and emit positrons, aka, anti electrons.

它开始衰放正电子，也就是反电子。

Positrons are the antimatter counterparts to electrons.

正电子是电子的反物质。

I'm sorry, we have a positron cannon?

抱歉 我们还有正电子炮？

The positron cannon is ready to fire, and you're safe.

正电子炮已准备好开火 你安全了。

Using a PET scan technology that he helped develop and partly owns.

使用正电子发射扫描技术，这个是博士协助开发的技术拥有部分所有权。

One possible explanation is that these excess positrons are a by-product of dark matter interactions.

这些多余的正电子是暗物质间相互作用的副产物。

A positron for example is just like an electron but it has positive charge.

比如一个正电子，就是一个电子，但是带有一个单位正电荷。

The collision first forms a neutron, and then a positron.

碰撞首先一个中子，然一个正电子。

Furthermore, antimatter research is the basis for Positron Emission Tomography (PET), a crucial tool in modern medical imaging.

此外，反物质研究是正电子发射断层扫描（PET）的基础，而正电子发射断层扫描是现代医学像的重要工具。

And when an electron and a positron or a proton and antiproton meet, they annihilate.

当一个电子与正电子相遇，或者一个质子与反质子相遇，它们就会抵消。

Its new results show more positrons than expected.

最新观测结果显示，这些粒子带的正电子要比想象的多。

Thus, humanity recognized the positron, a positively charged copy of the electron.

因此，人类认识到了正电子，一种带正电的电子拷贝。

When electrons collide with the foil, positrons are formed in the flow.

当电子与金属箔相撞时，正电子在流动中形。

They used PET scans to look at the flow of oxygen and sugar in the brains.

他们使用PET（正电子发射断层扫描技术）扫描来观察大脑中氧气和糖分的流动。

The positron then immediately finds an electron, the two annihilate making a tiny flash of light, a photon.

正电子马上找到一个电子，这两个湮灭时产光子的微小闪光。

Next, a magnet comes into play and spreads positrons and electrons in different directions.

接下来，一个磁铁开始发挥作用，把正电子和电子分散到不同的方向。

These may be an electron and its antimatter equivalent, a positron, or two heavier leptons, a muon and an antimuon.

它们可能是一个电子和它的反物质等价物，一个正电子，或者两个更重的轻子，一个介子和一个反介子。

Positrons are essentially electrons with positive charge.

正电子本质上是带正电荷的电子。

Within the limits of accuracy of the experiment, positron spin-flipping seems to happen at the same frequency as electron spin-flipping.

在实验精度可以达到的范围内，正电子的自旋反转似乎与电子的自旋反转发在同一微波频率上。