Energy loss spectra of iron

Diagnosing Energy Loss: PHENIX Results on High-pT Hadron Spectra

Measurements of inclusive spectra of hadrons at large transverse momentum over a broad range of energy in different collision systems have been performed with the PHENIX experiment at RHIC. The data allow to study the energy and system size dependence of the suppression observed in RAA of high-pT hadrons at √ sNN= 200 GeV. Due to the large energy range from √ sNN= 22 GeV to 200 GeV, the results...

Effect of strain on low-loss electron energy loss spectra of group III-nitrides

Improving the energy resolution of X-ray and electron energy-loss spectra.

We discuss some practical problems of improving the resolution of X-ray and electron spectra. Iterative Bayesian methods promise greater resolution enhancement than Fourier techniques but they also give rise to spectral artifacts. Satellite peaks are generated adjacent to strong peaks in the original spectrum and oscillatory artifacts become prominent after a large number of iterations, particu...

Determining the band gap and mean kinetic energy of atoms from reflection electron energy loss spectra.

Reflection electron energy loss spectra from some insulating materials (CaCO3, Li2CO3, and SiO2) taken at relatively high incoming electron energies (5-40 keV) are analyzed. Here, one is bulk sensitive and a well-defined onset of inelastic excitations is observed from which one can infer the value of the band gap. An estimate of the band gap was obtained by fitting the spectra with a procedure ...

Extracting the Ag surface and volume loss functions from reflection electron energy loss spectra

Reflection electron energy loss spectra have been measured for silver using incoming electrons with energies between 5 and 40 keV, in a surface and volume-sensitive geometry. Bulk and surface loss functions are extracted from these data and various consistency checks are applied to the obtained loss functions. Depositing minute amounts of Al onto the Ag surface causes a severe reduction in surf...