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Keckwick

Borough of Halton

Keckwick is an area in the Borough of Halton in Cheshire. Although there is no village as such, numerous toponyms attest to a particular identity in the area which straddles the West Coast Main Line between the village of Daresbury and the new town of Runcorn.

Excerpt from the Wikipedia article Keckwick (License: CC BY-SA 3.0, Authors).

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Latitude Longitude
N 53.347 ° E -2.646 °
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Delph Lane

Delph Lane
WA4 6SU
England, United Kingdom
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ALICE (accelerator)

Accelerators and Lasers In Combined Experiments (ALICE), or Energy Recovery Linac Prototype (ERLP) is a 35MeV energy recovery linac test facility at Daresbury Laboratory in Cheshire, England. The project was originally conceived as a test bed for the 4th Generation Light Source (4GLS), and consists of: A 350keV photoinjector laser. An 8.35MeV superconducting RF booster linac. A 35MeV superconducting RF main linac in which energy is recovered from used electron bunches and given to new bunches. An infrared free electron laser (FEL), using a permanent magnet undulator on permanent loan from Thomas Jefferson National Accelerator Facility (TJNAF). An ERL transport system that transports electron bunches through the FEL and back to the linac with the correct RF phase to decelerate them and thereby to recover energy from them.The ALICE accelerator is an Energy Recovery Linac (ERL) that incorporates all the features of the 4th generation light source albeit at smaller scale. An ERL is not restricted by the dynamic properties of storage rings and, therefore, can attain an unprecedented electron beam brightness limited only by the electron gun. Energy recovery allows also a significant increase in an average power of the light sources (without building a dedicated power station nearby!). The ability to produce ultra-short electron bunches well below 1ps and an availability of several light sources of different “colour” open up numerous possibilities for conducting investigations of fast processes on a femtosecond scale in molecular and solid state physics to name but a few. The ALICE project was extended by addition of a 19-cavity accelerating Non-Scaling FFAG ring, known as the EMMA project. Construction of the EMMA machine began in September 2009. As of March 31, 2011, full ring circumnavigation was completed to establish proof of principle.

EMMA (accelerator)
EMMA (accelerator)

The electron machine with many applications or electron model for many applications (EMMA) is a linear non-scaling FFAG (fixed-field alternating-gradient) particle accelerator at Daresbury Laboratory in the UK that can accelerate electrons from 10 to 20 MeV. A FFAG is a type of accelerator in which the magnetic field in the bending magnets is constant during acceleration. This means the particle beam will move radially outwards as its momentum increases. Acceleration was successfully demonstrated in EMMA, paving the way for future non-scaling FFAGs to meet important applications in energy, security and medicine. A linear non-scaling FFAG is one in which a quantity known as the betatron tune is allowed to vary unchecked. In a conventional synchrotron such a variation would result in loss of the beam. However, in EMMA the beam will cross these resonances so rapidly that their effect should not be seen. EMMA will use the ALICE accelerator as a source of electrons and will be situated in the same laboratory at STFC's Daresbury site. EMMA is a proof-of-principle machine; the experience gained in building this machine will be useful for future muon accelerators (which could be used in neutrino factories), and also for proton and carbon ion particle accelerators, which have applications for cancer therapy. Non-scaling FFAGs are a good candidate for use in an accelerator-driven subcritical reactor system in which a non-critical fission core is driven to criticality by a small accelerator. Future electrical power generation could be influenced heavily by the use power stations consisting of a sub-critical core containing a material such as thorium, and a small accelerator capable of providing extra neutrons via a spallation target. EMMA was funded by the BASROC consortium, under the CONFORM umbrella. Commissioning of EMMA began in June 2010 when the beam was injected and sent around part of the ring. Full ring commissioning commenced in August 2010. As of March 31 2011, full ring circumnavigation was completed to establish proof of principle.