نتایج جستجو برای: electron accelerator
تعداد نتایج: 322049 فیلتر نتایج به سال:
There has been growing clinical evidence of the value targeted alpha therapy for treatment several cancers. The work slowed by lack availability key emitting isotopes, especially Ac-225. It can be produced photonuclear reaction, Ra-226(?,n)Ra-225. Ra-225 decays via beta-decay to Ac-225 with a half-life 14.9 days. This paper will provide technical description radium targets and target chamber th...
The Brookhaven Accelerator Test Facility (ATF) is a dedicated user facility for accelerator physicists. Its design is optimized to explore laser acceleration and coherent radiation production. To characterize the lowemittance, picoseconds long electron beam produced by the ATF's photocathode RF gun, we have installed electron beam profile monitors for transverse emittance measurement, and devel...
A new approach to intraoperative radiotherapy makes use of a mobile electron linear accelerator delivering therapeutic radiation doses in an operating room suite. This unconventional technology has raised questions concerning protection for personnel and the necessity of shielding the adjoining areas. In this study, the leakage and scatter radiation from the mobile electron accelerator is measu...
There is urgent need to develop new acceleration techniques capable of exceeding gigaelectron-volt-per-metre (GeV m(-1)) gradients in order to enable future generations of both light sources and high-energy physics experiments. To address this need, short wavelength accelerators based on wakefields, where an intense relativistic electron beam radiates the demanded fields directly into the accel...
An experiment on phase-locked injection of ~ 100 fs electron bunches in a plasma beat wave accelerator is presented. We consider using an IFEL microbunching technique to produce ultrashort electron bunches prebunched at the exact wavelength of the plasma wave 340 Jim (~lTHz). It is proposed to generate 100 MW of 1 THz radiation by difference frequency generation in a nonlinear crystal, mixing t...
The goal of electron linear accelerator project in institute for research in fundamental sciences(IPM) is to build its components as many as they can in Iran. This accelerator is a traveling wave type. Investigations show that there are various techniques in forming and connecting the accelerating tube cavities. The shrinking method applied for constructing the accelerating tube is selected bas...
The interference of stray electrons (also called ‘‘electron clouds’’) with accelerator beams is important in modern intense-beam accelerators, especially those with beams of positive charge. In magnetic wigglers, used, for instance, for transverse emittance damping, the intense synchrotron radiation produced by the beam can generate an electron cloud of relatively high density. In this paper th...
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