Development of a Novel Piezo Driven Device for Fast Helicity Reversal Experiments on the XMaS Beamline

Journal Article · Fri Jan 19 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2436391· OSTI ID:21049334

Bouchenoire, L; Brown, S D; Thompson, P ^[1]; Cain, M G; Stewart, M ^[2]; Cooper, M J ^[3]

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1. XMaS, The UK-CRG, ESRF, BP 220, F-38043 Grenoble CEDEX (France)
2. Functional Materials, National Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW (United Kingdom)
3. Dept of Physics, University of Warwick Gibbet Hill Road, Coventry, CV4 7AL (United Kingdom)

The XMaS diamond phase retarder has been combined with a phase sensitive detection method to probe weak signals buried in high backgrounds. The system was tested in x-ray magnetic circular dichroism (XMCD) studies. Fast reversal of the photon helicity was effected by a new piezo driven device operating at 10Hz and higher frequencies. The XMCD signal was detected through the use of a lock-in amplifier. This technique was successfully applied at the L2 and L3 edges of a GdCo2 foil.

• OSTI ID: 21049334
• Journal Information: AIP Conference Proceedings, Vol. 879, Issue 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436391; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COBALT
DETECTION
DIAMONDS
FOILS
GADOLINIUM
HELICITY
INTERMETALLIC COMPOUNDS
LOCK-IN AMPLIFIERS
MAGNETIC CIRCULAR DICHROISM
PHOTONS
PROBES
X RADIATION