COMPACT POLARIZING SOLLER GUIDES FOR COLD NEUTRONS

Journal article

A compact guide system composed of magnetised thin-suit mirrors deposited on to stretched plastic foils, and suitable for polarising cold neutron beams (wavelengths lambda >0.5 nm) is described. The optical requirements in designing thin-film polarising guides are discussed, and polarising efficiency and transmittance measurements made near the characteristic cut-off wavelength lambda +* approximately=0.65 nm are presented. The mechanical design parameters of this guide are compared with those of existing alternative devices: their main advantage is their ability to polarise large beam areas (about 50 mm*40 mm) in relatively small distances (length approximately 180 mm).

Authors: Hayter, J; Penfold, J; Williams, W

• Publication status: Published
• Journal: JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS
• Volume: 11
• Issue: 5
• Pages: 454-458
• Publication date: 1978-01-01
• DOI: 10.1088/0022-3735/11/5/021
• ISSN: 0022-3735
• Language: English