Figure 1
(a) Beamline layout (not to scale). ESRF: storage ring; US: undulator source; VFM: vertical focusing mirror; HFM: horizontal focusing mirror; PC: polychromator; QWP: quarter-wave plate; M: minicoil magnet system; PSD: position-sensitive detector. (b) Electronics and triggering. Metis: thyristor-switched capacitive storage pulsed power supply; minicoil: miniature pulsed magnet system; MUSST: fast data acquisition card; delay: Stanford DG535 delay generator; pulse-train: Berkeley Nucleonics Corporation BNC 555 pulse generator; PSD: Quantum Detectors `Ultra' Si strip detector; spec: beamline control software. |