Photoinjected energy recovery linac upgrade for the National Synchrotron Light Source

Ben‐Zvi, I.; Babzien, M.; Blum, E.B.; Casey, W. R.; Chang, X.; Graves, W.; Hastings, J. B.; Hulbert, Steven L.; Johnson, E.; Kao, C.‐C.; Kramer, S.L.; Krinsky, S.; Mortazavi, P.; Murphy, J.B.; Ozaki, Satoshi; Pjerov, S.; Podobedov, B.; Rakowsky, G.; Rose, J.; Shaftan, T.; Sheehy, B.; Siddons, D. P.; Smedley, J.; Srinivasan-Rao, T.; Towne, N.; Wang, Jiunn-Ming; Wang, Xijie; Wu, Juhao; Yakimenko, V.; Yu, Lihua

doi:10.1109/pac.2001.987512

Cited by 5 publications

(5 citation statements)

References 10 publications

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“…The CHESS project at Cornell [116] foresees a beam of 5 GeV and 100 mA (500 MW), with 240 TESLA type superconducting cavities (gradient of 20 MV/m), a cryogenic plant of 16 MW, an electrostatic gun of 500 keV equipped with a photocathode. The prototype targets a current of 100 mA at 100 MeV, a cryogenic plant of 500 W. The PERL project [117] (BNL) aims at 3 to 7 GeV, an average current of 200 mA, with TESLA types cryogenic modules. The LUX project (LBL) [118] comports a superconducting LINAC of 600 MeV recirculating four times for reaching an energy of 2.5 GeV and in vacuum undulators.…”

Section: State-of-the-artmentioning

confidence: 99%

X radiation sources based on accelerators

Couprie

Filhol

2008

Comptes Rendus. Physique

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Light sources based on accelerators aim at producing very high brilliance coherent radiation, tuneable from the infrared to X-ray range, with picosecond or femtosecond light pulses.The first synchrotron light sources were built around storage rings in which a large number of relativistic electrons produce "synchrotron radiation" when their trajectory is subjected to a magnetic field, either in bending magnets or in specific insertion devices (undulators), made of an alternating series of magnets, allowing the number of curvatures to be increased and the radiation to be reinforced.These "synchrotron radiation" storage rings are now used worldwide (there are more than thirty), and they simultaneously distribute their radiation to several tens of users around the storage ring.The most effective installations in term of brilliance are the so-called 3rd generation synchrotron radiation light sources. The radiation produced presents pulse durations of the order of a few tens of ps, at a high rate (of the order of MHz); it is tuneable over a large range, depending on the magnetic field and the electron beam energy and its polarisation is adjustable (in the VUV-soft-X range). Generally, a very precise spectral selection is made by the users with a monochromator.The single pass linear accelerators can produce very short electron bunches (∼ 100 femtosecond). The beam of very high electronic density is sent into successive undulator modules, reinforcing the radiation's longitudinal coherence, produced according to a Free Electron Laser (FEL) scheme by the interaction between the electron bunch and a light wave. The very high peak brilliance justifies their designation as 4th generation sources. The number of users is smaller because an electron pulse produces a radiation burst towards only one beamline. Energy Recovery Linacs (ERL) let the beam pass several times in the accelerator structures either to recover the energy or to accelerate the electrons during several turns, and thus provide subpicosecond beams for a greater number of users.A state-of-the-art of X sources using conventional (and not laser plasma based) accelerators is given here, underlying the performance already reached or forecast and the essential challenges.

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Section: State-of-the-artmentioning

confidence: 99%

X radiation sources based on accelerators

Couprie

Filhol

2008

Comptes Rendus. Physique

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“…Aside from this Russian work, all of the other proposed projects assume that a superconducting recirculated linac will be used. The main proposals at present are the Cornell/Jlab energy recovery linac (ERL) proposal [45,46], Brookhaven's PERL proposal [47], LBNL's LUX project [48,49], Daresbury's 4GLS proposal [50], and University of Erlangen's ERLSYN proposal [51]. There is some effort in Japan too, but no serious proposal as yet.…”

Section: Recirculated Linac Light Sourcesmentioning

confidence: 99%

Recirculated and Energy Recovered Linacs

Krafft

2004

Physics and Technology of Linear Accelerator Systems

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Linacs that are recirculated share many characteristics with ordinary linacs, including the ability to accelerate electron beams from an injector to high energy with relatively little (normalized) emittance growth and the ability to deliver ultrashort bunch duration pulses to users. When such linacs are energy recovered, the additional possibility of accelerating very high average beam current arises. Because this combination of beam properties is not possible from either a conventional linac, or from storage rings where emittance and pulse length are set by the equilibrium between radiation damping and quantum excitation of oscillations about the closed orbit, energy recovered linacs are being considered for an increasing variety of applications. These possibilities extend from high power free-electron lasers and recirculated linac light sources, to electron coolers for high energy colliders or actual electronion colliding-beam machines based on an energy recovered linac for the electrons.

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“…The approach for much of the source builds upon demonstrated and developed designs such as TESLA [6] and the FNAL A0 [5] systems, but is complementary to other work being proposed in this area [11]. However, the demands necessary to achieve a dedicated scientific source require significant departures from these existing designs.…”

Section: Discussionmentioning

confidence: 99%

A dedicated synchrotron light source for ultrafast X-ray science

Corlett

DeSantis

Hartmann³

et al.

PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268)

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We describe a proposed femtosecond synchrotron radiation x-ray source based on a flat-beam RF gun and a recirculating superconducting linac that provides beam to an array of undulators and bend magnets. X-ray pulse durations of <100 fs at a 10 kHz repetition rate are obtained by a combination of electron pulse compression, transverse temporal correlation of the electrons, and x-ray pulse compression.

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Photoinjected energy recovery linac upgrade for the National Synchrotron Light Source

Cited by 5 publications

References 10 publications

X radiation sources based on accelerators

X radiation sources based on accelerators

Recirculated and Energy Recovered Linacs

A dedicated synchrotron light source for ultrafast X-ray science

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