Absolute differential cross sections for the reaction ep-->epgamma have been measured at a four-momentum transfer with virtuality Q2 = 0.33 GeV2 and polarization epsilon = 0.62 in the range 33.6 to 111.5 MeV/c for the momentum of the outgoing photon in the photon-proton center of mass frame. The experiment has been performed with the high-resolution spectrometers at the Mainz Microtron MAMI. From the photon angular distributions, two structure functions which are a linear combination of the generalized polarizabilities have been determined for the first time.

Small-angle options of the upgraded ultrasmall-angle x-ray scattering beamline BW4 at HASYLAB Rev. Sci. Instrum. 77, 085106 (2006); 10.1063/1.2336195 X-ray absolute intensity measurement at HASYLAB ultrasmall angle x-ray scattering beamline BW4 Rev. Sci. Instrum. 68, 4009 (1997); 10.1063/1.1148374 X1A: Secondgeneration undulator beamlines serving soft xray spectromicroscopy experiments at the NSLS Rev.

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Several hairs belonging to Napoleon I were analyzed through synchrotron induced x-ray fluorescence analysis. This study revealed the presence of many toxic elements, often far above the lethal content, and with important concentration variations from one hair to another and even from one place to another in a same sample. This does not seem to favor the simple hypothesis of poisoning through arsenic ingestion.