新型中子透射超镜反射偏振器
New neutron transmission supermirror remanent polarizer
摘要：
提出了一种新的中子透射超镜反射偏振器。偏振器是紧凑的。它由两个固态偏振部分组成。部分偏振器具有超镜结构的磁性层的反平行磁化。极化器的两个部分都具有剩磁。这使得它可以在小磁场中用作偏振器和分析器。偏振器可用于处理大截面和宽角分布的光束。该装置的组装被大大简化，因为它不需要沿着半径弯曲一大堆短板，而只需要压缩它。通过偏振器的光束的角轮廓的宽度不会改变！偏振器对于光束的（-）自旋分量具有高透射率。通过偏振器的光束是高度偏振的。本文讨论了中子极化CoFe/TiZr和Fe/Si反射超镜（m = 2.0和2.5）的特性。提出了一种在饱和磁场中有效使用具有自旋翻转器的偏振器的变型。
英文摘要：
A new neutron transmission supermirror remanent polarizer is proposed. The polarizer is compact. It consists of two solid state polarizing parts. Parts of the polarizer have antiparallel magnetization of magnetic layers of supermirror structures. Both parts of the polarizer have magnetic remanence. This allows it to be used as a polarizer and analyzer in small magnetic fields. The polarizer can be used when working with beams of large cross-section and with a wide angular distribution. Assembly of the device is greatly simplified, because it is not required to bend a large stack of short plates along the radius, but only to compress of its. The width of the angular profile of the beam passed through the polarizer does not change! The polarizer has a high transmittance for the (-) spin component of the beam. The beam passed through the polarizer is highly polarized. Properties of neutron polarizing CoFe/TiZr and Fe/Si remanent supermirrors (m = 2.0 and 2.5) are discussed. A variant of effective use of the proposed polarizer with a spin-flipper for operation in saturating magnetic fields is proposed.
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