Magnetic compton scattering using the elliptical multipole wiggler at sector 11-ID-B.

Journal Article · Sat Jan 01 04:00:00 EST 2000 · J. Phys. Chem. Solids

DOI:https://doi.org/10.1016/S0022-3697(99)00315-7· OSTI ID:942751

Montano, P A; Ruett, U; Beno, M A; Jennings, G; Kimball, C W

Magnetic Compton scattering has been used to measure the momentum distribution of magnetic electrons in several materials. The polarization and frequency tunability of the elliptical multipole wiggler (EMW) makes it an ideal source for magnetic Compton scattering experiments. We performed the measurements using 50, 100 and 150 keV photons simultaneously. The EMW was operated at K{sub y}=14 (E{sub c}=32 keV) and K{sub x} between 0.6 and 1.03. The degree of circular polarization was about 80% or higher. The sample was mounted between the poles of an electromagnet in a field of 0.8 T. The majority of Compton scattering measurements were performed by switching the magnet polarity. Tests using an iron foil target gave a similar magnetic Compton profile by either switching the magnetic field or the photon helicity. A 9-element Ge solid state detector array was used for detection.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; OUS
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942751
• Report Number(s): ANL/MSD/JA-34203
• Journal Information: J. Phys. Chem. Solids, Journal Name: J. Phys. Chem. Solids Journal Issue: 2000 Vol. 61; ISSN 0022-3697; ISSN JPCSAW
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPTON EFFECT
DETECTION
ELECTROMAGNETS
ELECTRONS
FOILS
HELICITY
IRON
MAGNETIC FIELDS
MAGNETS
MATERIALS
MULTIPOLES
PHOTONS
POLARIZATION
SOLIDS
TARGETS