background: understanding of the incident electron energy and angular distributions from clinical electron accelerators (linacs) is important for dosimetry and treatment planning. the most important goals of this study were to evaluate the energy fluence and angular distributions of electron beams from a neptun 10pc linac using the monte carlo (mc) code. materials and methods: the linac electro...

the objective of this study was to determine the effect of irradiation of pomegranate seed (ps) on chemical composition, digestibility and kinetic of gas production. pomegranate seeds were exposed to gamma ray (gr) and electron beam (eb) at doses of 5, 10, 15 and 20 kgy. three ruminally fistulated rams were used for obtaining ruminal fluid for in vitro digestibility and gas production measuremen...

Maximizing the current and stability of the beam is an important goal in high-energy accelerators. Low-energy electron clouds can be produced from photoemission caused by synchrotron radiation, ionization of residual gas in beam-pipe, and secondary electrons. In lepton accelerators like CesrTA, low-energy electron clouds form primarily from synchrotron radiation of a positron beam and cause des...

Zinc phosphate, which is mainly used to protect metal form corrosion and abrasion, is one of the commonly used biomaterial and industry fields [1]. Herein, we demonstrate that the phase and microstructure of zinc phosphate prepared by phosphating on a stainless steel substrate can be significantly influenced by electron beam. Employing transmission electron microscopy (TEM) and aberration-corre...

One key limiting factor to a collider luminosity is beambeam interactions which usually can cause serious emittance growth of colliding beams and fast reduction of luminosity. Such nonlinear collective beam effect can be a very serious design challenge when the machine parameters are pushed into a new regime. In this paper, we present simulation studies of the beam-beam effect for a medium ener...

One of the main issues in the generation of a highbrightness electron beam is the preservation of beam emittance. Here we discuss one of possible source of the emittance dilution by the rf kick due to misalignment. The emittance of a high-brightness electron beam from a photoinjector is affected by the status of alignments due to deflection force by the accelerating field. The misaligned beam w...

Electron-beam-induced deposition EBID is a versatile microand nanofabrication technique based on electron-induced dissociation of metal-carrying gas molecules adsorbed on a target. EBID has the advantage of direct deposition of three-dimensional structures on almost any target geometry. This technique has occasionally been used in focused electron-beam instruments, such as scanning electron mic...

Aims. Understanding the properties of type III radio bursts in the solar corona and interplanetary space is one of the best ways to remotely deduce the characteristics of solar accelerated electron beams and the solar wind plasma. One feature of all type III bursts is the lowest frequency they reach (or stopping frequency). This feature reflects the distance from the Sun that an electron beam c...