Imaging with Polarized Neutrons

Journal of Imaging

卷:4

John Banhart¹  Nikolay Kardjilov¹  André Hilger¹  Ingo Manke¹  Markus Strobl² 

[1] Institute of Applied Materials, Helmholtz-Zentrum-Berlin, 14109 Berlin, Germany;

[2] Laboratory for Neutron Scattering and Imaging (LNS), Paul-Scherrer-Institute, 5232 Villigen, Switzerland;

关键词: neutron imaging;    polarized neutrons;    flux pinning;    magnetic field;   

DOI  :  10.3390/jimaging4010023

来源: DOAJ

【 摘 要 】

Owing to their zero charge, neutrons are able to pass through thick layers of matter (typically several centimeters) while being sensitive to magnetic fields due to their intrinsic magnetic moment. Therefore, in addition to the conventional attenuation contrast image, the magnetic field inside and around a sample can be visualized by detecting changes of polarization in a transmitted beam. The method is based on the spatially resolved measurement of the cumulative precession angles of a collimated, polarized, monochromatic neutron beam that traverses a magnetic field or sample.

【 授权许可】

Unknown