Ion Production with a High-power Short-pulse Laser for Application to Cancer Therapy
نویسندگان
چکیده
Ion production process with a high-power (~50TW) short-pulse (20fs) laser is to be utilized as a compact injector of the synchrotron for cancer therapy. In the scheme, an RF voltage with the frequency of 160 MHz is applied to the laser produced ion-beam within the energy space to reduce the momentum spread to ±1%, which is further cooled down to ±0.1 % by an electron beam cooling to realize needed characteristics of the beam to be safely accelerated by a pulse synchrotron.
منابع مشابه
اثر کانال یونی بر خودکانونی شدن پالس لیزری گاؤسی در پلاسماهای کم چگال
We have considered the self-focusing of a Gaussian laser pulse in unmagnetized plasma. High-intensity electromagnetic fields cause the variation of electron density in plasma. These changes in the special conditions cause the acceleration of electrons to the higher energy and velocities. Thus the equation of plasma density evolution was obtained considering the electrons ponderomotive force. T...
متن کاملافروزش سریع- شوکی رهیافتی نوین برای همجوشی محصور سازی اینرسی
A new concept for inertial confinement fusion called fast-shock ignition (FSI) is introduced as a credible scheme in order to obtain high target gain. In the proposed model, the separation of fuel ignition into two successive steps, under the suitable conditions, reduces required ignitor energy for the fuel ignition. The main procedure in FSI concept is compressing the fuel up to stagnation. T...
متن کاملشبیهسازی ذرهای شتاب دادن الکترونها در پلاسمای کم چگال
One of the interesting Laser-Plasma phenomena, when the laser power is high and ultra intense, is the generation of large amplitude plasma waves (Wakefield) and electron acceleration. An intense electromagnetic laser pulse can create plasma oscillations through the action of the nonlinear pondermotive force. electrons trapped in the wake can be accelerated to high energies, more than 1 TW. Of t...
متن کاملCalculation of total dose and dose equivalent distribution in the treatment of lung cancer using MR-guided carbon therapy
Nowadays, in order to improve the accuracy of treatment in radiation therapy, there are many attempts to use magnetic resonance imaging (MRI) due to the advantages of excellent soft tissue contrast and ultra-fast pulse sequences. On the other hand, carbon-ion radiation therapy is developing rapidly due to the benefits of greater relative biological effectiveness (RBE) and the application in the...
متن کاملProspects for Proton Accelerators Driven by the Radiation Pressure from a Sub-pw Co2 Laser *
Laser acceleration of ion beams is normally realized via irradiating thin-foil targets with near-IR solid-state lasers with up to petawatt (PW) peak power. Despite demonstration of significant achievements, further progress towards practical application of such beam sources is hindered by the challenges inherent in constructing still more intense and higher-contrast lasers. Our recent studies o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002