منابع مشابه
Vibrational spectroscopy of clusters using a “magnetic bottle” electron spectrometer
The design of a high resolution “magnetic-bottle ”-type time-of-flight electron spectrometer suitable for the study of mass-separated metal and semiconductor cluster anions is described. A high collection efficiency is achieved by using magnetic fields to guide the photoelectrons, so that vibrationally resolved photoelectron spectra can be recorded at a low laser pulse energy (<lo ruJ focused t...
متن کاملA magnetic-lens electron spectrometer; radiations from 5.3 year cobalt60.
An impro ved magnetic-lens spectrometer , similar in principle to tha t described by D eutsch, Elliott, and Evans 1 has been cOllsi,ru cted. The struc t ure, operation, and method of calibrat ion, using a ThB + C deposit, is d escrib ed. R es ults of m easurem ents of t he primary beta-ray specti'um of COHO a nd of t he gamma-ray spect; um converted in a uran ium radiator a rc gi ven. These g i...
متن کاملPerformance of a short "magnetic bottle" electron spectrometer.
In this article, a newly constructed electron spectrometer of the magnetic bottle type is described. The instrument is part of an apparatus for measuring the electron spectra of free clusters using synchrotron radiation. Argon and helium outer valence photoelectron spectra have been recorded in order to investigate the characteristic features of the spectrometer. The energy resolution (E/ΔE) ha...
متن کاملElectron-time Of-flight Spectrometer
A velocity selector is described which is designed for measurement of the total collision cross section of electrons in the energy region below one volt. The system determines the distributions of times of flight of single electrons over a measured path at selected pressures of a specimen gas. The electrons are generated by repetitive illumination of a photo-emitter by a spark gap, pass over a ...
متن کاملLarge enhancements of magnetic anisotropy in oxide-free iron nanoparticles
Magnetic characterization of spherical, oxide-free, bcc iron nanoparticles synthesized with b-diketone surfactants has been performed. The results of this characterization, which included particles with diameters ranging between 2 and 5 nm show that the nanoparticles have an average anisotropy of 1.9 1070.3 10 J/m, which is more than an order of magnitude greater than the magnetocrystalline ani...
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ژورنال
عنوان ژورنال: Journal of the Spectroscopical Society of Japan
سال: 1973
ISSN: 1884-6785,0038-7002
DOI: 10.5111/bunkou.22.285