An apparatus has been developed for electron-atom Compton scattering experiments that can employ a pulsed laser and picosecond electron beam in pump-and-probe scheme. The design technical details of the are described. Furthermore, experimental results on Xe atom its ground state presented to illustrate performance gun detection spectrometric capabilities scattered electrons. scope future applic...

The results of measuring the luminescence ambient air and solutions an organic compound during their irradiation with a high-current pulsed electron beam average energy E e =170 keV duration 2 ns, generated by RADAN-303 accelerator, are presented. It is shown that, under such exposure, transformation dissolved bisphenol A occurs, which accompanied increase in absorption coefficient solution wav...

The experiments described by H. E. Rowe and C. E. Muehe. Jr. in previous Quarterly Progress Reports had to do with the noise characteristics of magnetically focused electron beams. Although the experiments were conducted with vacua of less than 10-6 mm Hg. the long drift tube insured almost complete neutralization of the electron beam by positive ions. Thus. it was never possible, for example. ...

Point sources in complex spacetime, which generate acoustic and electromagnetic pulsed-beam wavelets, are rigorously defined and computed with a view toward their realization.

This paper describes computer simulations and measurements on an electron bunch from a pulsed, high gradient gap. MAFIA and PBGUNS were used to calculate the emittance, brightness and energy spread of the electron beam for peak currents ranging from 10 A to 1 kA and pulse durations ranging from 0.3 ps to 10 ps. Under optimum conditions, normalized emittance of 10 pi m-rad, beam brightness of 3x...

High-current pulsed electron-beam (HCPEB) surface modification of Al-Co-Cr-Fe-Ni high-entropy alloy (wt. %) Al—15.64; Co—7.78; Cr—8.87; Fe—22.31; Ni—44.57, fabricated via wire-arc additive manufacturing was studied. The initial condition the sample is characterized by a highly inhomogeneous distribution chemical elements that form alloy. samples were irradiated with different electron beam ener...

In pulsed traveling-wave high-intensity electron linacs large beam energy spreads are caused by the transient beam loading phenomenon. This energy spread is not only critical in high-energy accelerators, as the next generation of linear colliders, but it causes also problems in modern low-energy high-intensity linacs. Different compensation schemes were proposed recently for SLED driven structu...

Compositionally graded combinatorial films have been characterized by a high throughput automated spectroscopic reflectometer. The data from this instrument were used to map the thickness and index of refraction of the compositionally varying films. Combinatorial films produced by dual-beam, dual-target pulsed laser deposition and characterized with the reflectometer include the BaTiO3–SrTiO3 s...