Magnetic compound refractive lens for focusing and polarizing cold neutron beams

Review of Scientific Instruments

Volumn 78, Issue 3, 2007, Pages

  Littrell, K C ^a   Te Velthuis, S G E ^a   Felcher, G P ^a   Park, S ^b   Kirby, B J ^b   Fitzsimmons, M R ^b  

^a ARGONNE NATIONAL LABORATORY   (United States)

^b LOS ALAMOS NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CYLINDRICAL LENSES; MAGNETIC REFRACTIVE LENS; SMALL ANGLE SCATTERING INSTRUMENTS; SPIN STATE;

ELECTROMAGNETIC INDUCTION; FOCUSING; NEUTRON BEAMS; PERMANENT MAGNETS; SPIN POLARIZATION; X RAYS;

MAGNETIC LENSES;

EID: 34047098414     PISSN: 00346748     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2709844     Document Type: Article

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24. In the sextupole the magnetic fields are directed radially. To maintain the polarization of all neutrons along a definite direction, the neutrons are polarized in the direction of the beam before the lens, where the polarization is rotated adiabatically toward the radial direction. At the exit of the lens the reciprocal process takes place.