Accelerator Test Facility
Encyclopedia
1) The Accelerator Test Facility (BNL-ATF) is a user facility within Brookhaven National Laboratory
Brookhaven National Laboratory
Brookhaven National Laboratory , is a United States national laboratory located in Upton, New York on Long Island, and was formally established in 1947 at the site of Camp Upton, a former U.S. Army base...

 (BNL) in New York, USA. Commencing operation in 1989, the BNL-ATF carries out research and development on advanced accelerator physics and studies the interactions of high power electromagnetic radiation and high brightness electron beams, including plasma-acceleration and laser-acceleration of electrons.

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2) The Accelerator Test Facility (KEK-ATF) is a test accelerator in the KEK
KEK
, known as KEK, is a national organization whose purpose is to operate the largest particle physics laboratory in Japan, which is situated in Tsukuba of Ibaraki prefecture. Established in 1997. The term "KEK" is also used to refer to the laboratory itself, which employs approximately 900 employees...

 laboratory in Tsukuba, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. It is a test bed for production of the beam for the proposed International Linear Collider
International Linear Collider
The International Linear Collider is a proposed linear particle accelerator. It is planned to have a collision energy of 500 GeV initially, and, if approved after the project has published its Technical Design Report, planned for 2012, could be completed in the late 2010s. A later upgrade to 1000...

 (ILC) linear electron-positron collider.

Its main goal is to create the super-low-emittance
Beam emittance
The beam emittance of a particle accelerator is the extent occupied by the particles of the beam in space and momentum phase space as it travels. A low emittance particle beam is a beam where the particles are confined to a small distance and have nearly the same momentum...

beam which is needed for the ILC.
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