Miniature pulsed magnet system for synchrotron x-ray measurements.
We have developed a versatile experimental apparatus for synchrotron x-ray measurements in pulsed high magnetic fields. The apparatus consists of a double cryostat incorporating a liquid nitrogen bath to cool the miniature pulsed coil and an independent helium flow cryostat allowing sample temperatures from 4 up to 250 K. The high duty cycle miniature pulsed coils can generate up to 38 T. During experiments at 30 T a repetition rate of 6 pulsesmin was routinely reached. Using a 4 kJ power supply, the pulse duration was between 500 mus and 1 ms. The setup was used for nuclear forward scattering measurements on 57Fe up to 25 T on the ESRF beamline ID18. In another experiment, x-ray magnetic circular dichroism was measured up to 30 T on the ESRF energy dispersive beamline ID24.
van der Linden
Peter J E M
PJ
European Synchrotron Radiation Facility, Polygone Scientifique Louis Neel, 6 rue Jules Horowitz, F-38043 Grenoble, France.
Mathon
Olivier
O
Strohm
Cornelius
C
Sikora
Marcin
M