New multipole wiggler/undulator beamline (BL-16) at the Photon Factory

Abstract

Articles you may be interested inDesign of high heat load whitebeam slits for wiggler/undulator beamlines at the Advanced Photon Source Rev. Sci. Instrum. 66, 1792 (1995 10.1063/1.1146464 Thermomechanical analysis of the whitebeam slits for a wiggler/undulator beamline at the Advanced Photon Source Rev.Design and experience of the initial operation of a new beamline (BL-16) for a 3.6-m-long, 53pole wiggler/undulator constructed at the Photon Factory are described. The insertion device has hybrid permanent magnets with a period of 12 cm and a maximum magnetic field of 1.47 T. In the undulator mode, the energy of the fundamental peak can be varied from 40 to 400 e V. In the wiggler mode, an x-ray beam (critical energy of 6 ke V) 50-100 times more intense than that from the bending magnets is obtained. The beamline consists of two time-shared branch lines; a side beamline for soft x-rays in the undulator operation, to which photon beams are deflected sideways by a cylindrical SiC mirror, and a straight line for hard x rays under the wiggler operation. On the hard x-ray line, a fixed-exit sagittal-focusing double-crystal monochromator has been installed and commissioned. Collimating and refocusing mirrors will be installed in 1989. On the undulator beamline, a soft x-ray monochromator utilizing sophisticatedly devised aberration correction optics is commissioned.

Anisotropy of hexagonal boron nitride core absorption spectra by x-ray Raman spectroscopy

“…19 The beam line consists of a collimating mirror, a sagittally focusing double Si͑111͒ crystal monochromator, and a vertically focusing mirror. The flux is believed to be about 10 13 photons/sec, and the spectral width ͑FWHM͒ measured was 1.1 eV at 6 keV.…”

Resonant x-ray Raman scattering in BKα emission spectra of boron oxide (B2O3Muramatsu1, Oshima2, Kato3 1993Phys. Rev. Lett.34190View full textAdd to dashboardCite

“…Spectroscopic measurements of B2O3 were carried out with a fluorescent x-ray spectrometer (FXS) of a novel design [17] installed on an undulator beam line (BL-16U) at the Photon Factory [18]. The purity of the commercially obtained solid B2O3 sample exceeds 99.9%.…”

Static structure factor and electron correlation effects studied by inelastic x-ray scattering spectroscopy

“…In the normalization procedure, the data were least-squares fitted to the function A/E b and extrapolated to infinity. As the normalization constants corresponding to the total number of valence electrons plus a small estimated correction for Pauli-excluded transition from the carbon, nitrogen, and oxygen K-shells to the already occupied valence shell orbitals, 14 …”