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Varian Medical Systems is an American radiation oncology treatments and software maker based in Palo Alto, California. Their medical devices include linear accelerators (LINACs) and software for treating cancer and other medical conditions with radiotherapy , radiosurgery , proton therapy , and brachytherapy .
The design of a linac depends on the type of particle that is being accelerated: electrons, protons or ions. Linacs range in size from a cathode-ray tube (which is a type of linac) to the 3.2-kilometre-long (2.0 mi) linac at the SLAC National Accelerator Laboratory in Menlo Park, California.
Linac 3, also referred to as the Lead Linac [16] was constructed inside the former tunnel of Linac 1 and got commissioned in the summer of 1994 (construction started October 1992). It had been specially constructed to accelerate heavy ions, after tests with Linac 1 and an increasing demand from the scientific community suggested to build a new ...
Varian Associates was one of the first high-tech companies in Silicon Valley.It was founded in 1948 by Russell H. and Sigurd F. Varian, William Webster Hansen, and Edward Ginzton to sell the klystron, the first vacuum tube which could amplify electromagnetic waves at microwave frequencies, and other electromagnetic equipment.
The linear accelerator, now serving the PSB, was replaced in 1978 by Linac 2, leading to an further increase in intensity. [7] During this period acceleration of light ions entered the scene. Linac 1, which was replaced by Linac 2, was equipped to accelerate deuterons that were accelerated in the PS, and transferred to the ISR where they ...
The Varian brothers' parents, John and Agnes Varian, were born and raised in Ireland, [4] and were members of the Theosophical Society in Dublin. They emigrated to the United States in 1894, [5] and settled in Syracuse, New York, where they became involved with a theosophical group headed by William Dower.
In 2008, Varian bought Oxford Diffraction, a British company specializing in X-ray diffraction equipment. On 27 July 2009, Agilent Technologies announced it would buy Varian Inc, for $1.5 Billion. On 14 October 2014, Agilent made the strategic decision to close its NMR business. Agilent entered the NMR business in 2010, with the acquisition of ...
The Linac Coherent Light Source (LCLS) is a free electron laser facility located at SLAC. The LCLS is partially a reconstruction of the last 1/3 of the original linear accelerator at SLAC, and can deliver extremely intense x-ray radiation for research in a number of areas. It achieved first lasing in April 2009. [23]