نتایج جستجو برای: cyclic accelerator
تعداد نتایج: 115130 فیلتر نتایج به سال:
background: one of the main problems of dedicated iort accelerators is to determine dosimetric characteristics of the electron beams. monte carlo simulation of iort accelerator head and produced beam will be useful to improve the accuracy of beam dosimetry. materials and methods: liac accelerator head was modeled using the beamnrcmonte carlo simulation system. phase-space files were generated a...
In 1998, the Institute of Physics and Power Engineering (IPPE) and Experimental and Development Organization “Gidropress” in Russia, began the design and construction of a prototype leadbismuth eutectic (LBE) accelerator target, the Target Complex 1 (TC-1), under the International Science and Technology Center (ISTC) project #559 (“Pilot Flow Lead-Bismuth Target of 1 MW Power for Accelerator Dr...
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production targethon source combination, and a low q/m pre-accelerator for-radioactive ions. A working group including staff from the ANL Physics Division and current ATLAS users are preparing a r...
Invited ta Accelerator Ph 2, 2004. Correspond E-mail addr Work suppo contract numbe Support by gratefully ackno cations of parallel computational methods to charged-particle beam dynamics A. Kabel , Y. Cai, M. Dohlus, T. Sen, R. Uplenchwar Stanford Linear Accelerator Center, 2575 Sand Hill Road, Menlo Park, CA 94025, USA Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, D-22603 Hamburg, Germ...
Medical accelerators require arc-free operation. Due to high-field emission, arcing and outgassing can occur in high-power accelerators. Therefore, the accelerators inner surfaces have to be conditioned before its use at high gradient levels in Radiation Therapy machines. At Siemens, we have developed a technique to automatically condition accelerator structures by continually inspecting the a...
Finite affine groups are given by groups of translations and di- lations on finite cyclic groups. For cyclic groups of prime order we develop a time-scale (wavelet) analysis and show that for a large class of non-zero window signals/vectors, the generated full cyclic wavelet system constitutes a frame whose canonical dual is a cyclic wavelet frame.
objective: using megavoltage photons generated by medical linear accelerator is a common modality for the treatment of malignant. the crucial problem for using photon beams >8mv is the photoneutron yields that increase the risk of secondary cancer that treated with high-energy photon beams. the contaminated neutrons produced in different components of the accelerator head and rely on many param...
The OpenMP API provides a portable model for efficient, high level thread-parallel programming across platforms, vendors, operating systems. We are developing a model with the same advantages to address compute accelerators. In this talk, we explore today’s accelerator landscape, along with the perils of current programming methods. We demonstrate why OpenCL, while impressive and important, doe...
This paper describes an X-Band RF system for the Next Linear Collider Test Accelerator.[1] The RF system consists of a 90 MeV injector and a 540 MeV linac. The main components of the injector are two low-Q singlecavity prebunchers and two 0.9-m-long detuned accelerator sections. The linac system consists of six 1.8-mlong detuned and damped detuned accelerator sections powered in pairs. The rf p...
experimental study of the cyclic behavior of unsaturated materials is more complex than that of the saturated materials due to the required equipment, experience and time. furthering investigations in the field of unsaturated materials is necessary to better understand its complexity and sensitivity of unsaturated cyclic parameters to different determinants such as suction path, stress path, lo...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید