CN107271454B - 微波与磁化等离子体相互作用装置 - Google Patents
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Abstract
一种微波与磁化等离子体相互作用装置。它包括热钨盘(1)，圆柱形共振器(2)，探测器(3)，郎缪尔探针(4)，高频探针(5)，收集器(6)，扫频仪(7)。热钨盘(1)与波导管相连，波导管置于圆柱形共振器(2)的腔中，圆柱形共振器(2)又处于探测器(3)中，同时圆柱形共振器(2)的一侧与扫频仪(7)相连。波导管(2)穿过圆柱形共振器(2)后，其上依次安置郎缪尔探针(4)与高频探针(5)，最后与铜收集器(6)相连。本装置能使微波与磁化等离子体按照实验者预想的过程发生相互作用，并检测相互作用发生后，磁化等离子体与微波的参数。
Description
技术领域
本发明涉及能够实现微波与被磁化的等离子体在在一定条件下相互作用，并检测相互作用发生后微波与磁化等离子体参数的实验装置，属于电磁场领域。
背景技术
等离子体是一种由自由电子和带电离子为主要成分的物质形态，如果对气体持续加热，使分子分解为原子并发生电离，就形成了由离子、电子和中性粒子组成的“气体”，这种状态称为等离子体。除加热外，也有其他方法能够产生等离子体。但本装置中用于产生等离子体的方法是使用热钨盘加热钾蒸汽，从而使之电离。
微波是指波长介于红外线和特高频之间的射频电磁波。本装置采用共振器产生实验所需的微波。等离子体的应用中，通常通过磁场来束缚并影响等离子体，因此磁化等离子体对于微波吸收及微波对粒子作用的研究十分重要。
当等离子与微波发生相互作用时，一方面等离子体对微波具有一定的吸收和反射的能力，另一方面，微波也会对等离子体发生加热等作用。但是，这些相互作用的强度与效率，以及是否有其他反应发生，我们对此的了解是不够的，因此需要一个能够令两者相遇并发生相互作用的装置，从而从中观测实验结果，并总结归纳两者相互作用的特性。
而普通的微波与等离子体相互作用的装置往往无法确保等离子体是否磁化，及其被磁化的程度，因此，需要特定装置，使得等离子体在确保被磁化的情况下，与微波的发生相互作用，并通过改变磁化程度，观察作用效果，检测实验数据。
发明内容
本发明是一个为提供能使微波与磁化等离子体按照实验者预想的过程发生相互作用，并检测相互作用发生后，磁化等离子体与微波的参数的装置。
本发明所述微波与磁化等离子体相互作用装置，它包括热钨盘(1)，圆柱形共振器(2)，探测器(3)，郎缪尔探针(4)，高频探针(5)，收集器(6)，扫频仪(7)。
热钨盘(1)与波导管相连，波导管置于圆柱形共振器(2)的腔中，圆柱形共振器(2)又处于探测器(3)中，同时圆柱形共振器(2)的一侧与扫频仪(7)相连。波导管穿过圆柱形共振器(2)后，其上依次安置郎缪尔探针(4)与高频探针(5)，最后与收集器(6)相连。
所述波导管伸出圆柱形共振器(2)至收集器(6)的部分长度为80cm。
所述微波与磁化等离子体相互作用装置，置于附加的外磁场中。
本发明的优点：本发明中，共振器可以调节参与相互作用的微波的频率与强度，通过更换共振器，也可以改变共振器吸收等离子体的频率。可以通过调节射入热钨盘的钾蒸汽的密度，调节等离子体密度。调节外磁场的强度可实现对等离子体磁化程度的控制。整个实验过程的主要参数均可以控制，适用于观察各种不同初始条件下的微波与等离子体的相互作用过程。
本发明装置结构非常简单，且采用的设备多数为已经投产的设备，成本低廉，生产方便。
附图说明
图1是本发明所述微波与磁化等离子体相互作用装置沿轴向切开的结构示意图。
具体实施方式
具体实施方式一：下面结合图1说明本实施方式，本发明所述矩形波导微波与等离子体相互作用装置，它包括热钨盘(1)，圆柱形共振器(2)，探测器(3)，郎缪尔探针(4)，高频探针(5)，收集器(6)，扫频仪(7)。
热钨盘(1)与波导管相连，波导管置于圆柱形共振器(2)的腔中，圆柱形共振器(2)又处于探测器(3)中，同时圆柱形共振器(2)的一侧与扫频仪(7)相连。波导管穿过圆柱形共振器(2)后，其上依次安置郎缪尔探针(4)与高频探针(5)，最后与收集器(6)相连。
本实施方式在使用中，首先将整个装置置于外磁场中，且外磁场的方向如图中B0所示。然后向热钨盘喷射密度一定的钾蒸汽(8)使之受热电离为等离子体。等离子体由于受到磁场力的作用而沿波导向收集器(6)运动并被磁化，在进入圆柱形共振器(2)后与微波发生相互作用。郎缪尔探针(4)可以探测发生相互作用后等离子束流中电子的径向密度与能量分布，而高频探针(5)则可以探测等离子体束流中电子的轴向密度与能量分布。最终等离子体在收集器(6)被收集。
所述矩形波导微波与等离子体相互作用装置为轴对称结构。
具体实施方式二：本实施方式为对实施方式一的进一步说明，本实施方式所述波导管伸出圆柱形共振器(2)至铜收集器(6)的部分长度为80cm。
Claims (3)
1.一种微波与磁化等离子体相互作用装置，它包括热钨盘(1)，圆柱形共振器(2)，探测器(3)，郎缪尔探针(4)，高频探针(5)，收集器(6)，扫频仪(7),热钨盘(1)与波导管相连，波导管置于圆柱形共振器(2)的腔中，圆柱形共振器(2)又处于探测器(3)中，同时圆柱形共振器(2)的一侧与扫频仪(7)相连,波导管穿过圆柱形共振器(2)后，其上依次安置郎缪尔探针(4)与高频探针(5)，最后与收集器(6)相连。
2.根据权利要求1所述的微波与磁化等离子体相互作用装置，其特征在于，该装置为轴对称结构。
3.根据权利要求1所述的微波与磁化等离子体相互作用装置，其特征在于，该装置波导管伸出圆柱形共振器(2)至收集器(6)的部分长度为80cm。
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| CN112235930B (zh) * | 2020-10-10 | 2022-09-23 | 哈尔滨工业大学 | 一种辉光放电等离子体与微波波导相互作用的测量装置 |
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