一束

This invention relates to a method and device for generating cold atomic beam. Said method includes heating hot atom source in vacuum chamber to form atomic saturated vapor pressure atmosphere, cooling hot atom by three-D MOT to below 200uk and trapped to form cold atomic cloud, by the quarter wave plate reflection mirror in MOT the laser radiation pressure being unbalanced to make cold atom emitting along said direction, four tape arranged straight line set with contrary current direction is set in atom beam emission direction, which makes the atom emitted to forward to obtain cold atom beam with low speed, large flux and small transverse speed, laser beam vertical with atom beam set in the direction of cold atom emitting for atom beam state preparation to realize state concordant emitted cold atom beam.

本发明涉及一种冷原子束产生方法和装置，该方法包括在抽真空的真空室内，加热热原子源，在真空室中形成相应的原子饱和蒸汽压气氛；采用三维MOT对热原子进行冷却，冷却到200μk以下，并被捕获形成冷原子云团；通过三维MOT中开小孔的四分之一波片反射镜，而使得在该方向上激光辐射压力不平衡，使冷原子沿此方向出射；在冷原子束出射方向上，还置有载有彼此电流方向相反的四根成锥形排列的直导线，从而原子出射时将在磁场的作用下，不会沿横向膨胀而向前射出；便得到了出射速度低的、通量较大的、横向速度非常小的连续冷原子束；同时在冷原子束的出射方向上，设置有与原子束垂直的激光束，用于原子束的态制备，实现态一致的出射冷原子束。

Life is apure flame,and we live by an invisiblesun within us.

生命是一束纯净的火焰，我们依靠自己内心

Life is apure flame,and we live by an invisible sun within us.

生命是一束纯净的火焰，咱们依靠本人内心看不见的太阳而存在。

Life is apure flame,and we live by an invisible sun within us.

生命是一束纯净的火

Life is apure flame,and we live by aninvisible sun within us.

生命是一束纯净的火焰，我们依靠自己内心看不见的太阳而存在。

Life is apure flame,and we liveby an invisible sun within us.

生命是一束纯净的火焰，我们依靠自己内心看不见的太阳而存在。

PRIMUS new PowerLighter with a narrow flame makes it simple to light your stove or camp fire. A temperature of 1300℃ facilitates lighting liquid fuels in bad weather.

PRIMUS 新型PowerLighter点火器通过一束短火焰来点燃您的炉子或篝火。1300度的瞬间高温即使在恶劣的天气下依然保持高性能。

PRIMUS new Power Lighter with a narrow flame makes it simple to light your stove or camp fire. A temperature of 1300℃ facilitates lighting liquid fuels in bad weather.

PRIMUS 新型 Power Lighter 点火器通过一束短火焰来点燃您的炉子或篝火。1300度的瞬间高温即使在恶劣的天气下依然保持高性能。

At that time, I had to survive dried huss and huss soup as everyday meal.

总是昏暗的灯光，偶有的一束彩色光束照射在某一对的身上，迷幻而安静。

08 In a world filled with darkness, we all need some kind of light, whether it's a great flame that show s us how to win back what we've lost, or a powerful beacon intended to scare away potential mons ters, or a few glowing bulbs that reveal to us the hidden truth of our past.

在充满黑暗的世界里，我们都需要一些光明。它可以是指导我们挽回失去的东西的一束火焰；也可以是驱除潜在的恶魔的灯塔；或者是照亮我们隐藏真相的灯泡。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。