Research opportunities in Accelerator Physics CLASSE ......Internal target experiments Linacs:...
Transcript of Research opportunities in Accelerator Physics CLASSE ......Internal target experiments Linacs:...
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CLASSE
1 Georg H. Hoffstaetter Research Opportunity Night November 3, 2017
Research opportunities in Accelerator Physics
Georg Hoffstaetter, ERL accelerator group
Superconducting Energy Recovery Linac (in construction)
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Georg H. Hoffstaetter Research Opportunity Night November 03, 2017
CLASSE
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Domains of accelerator types
Synchrotron: Repetitive acceleration to high energy, low repetition rate and therefore low current. High energy, low current, relatively large beam size è Fixed target experiments,
Storage rings: Rare filling at high energy and storage for millions of turns, high current, requires very low loss rates. High energy, high current, relatively large beam size è Internal target experiments Linacs: Linear acceleration to moderately high energies that are limited by the available length. Current*Energy is limited by the available power. Moderately high energies, low current, small beam size è Fixed target experiments, moderately
Cornell’s 12GeV Synchrotron And Cornell’s storage ring CESR
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Georg H. Hoffstaetter Research Opportunity Night November 03, 2017
CLASSE
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Energy Recovery Linacs (ERLs)
approx. 500m
● Produce beam powers, and currents typical of synchrotrons. simultaneously ● Produce beam quality (density and brightness) of linacs.
Store energy in superconducting cavities while using electrons once.
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CLASSE
4 Georg H. Hoffstaetter Research Opportunity Night November 3, 2017
High-Power ERL to prototype Nuclear-Physics colliders and FELs
6 MeV 6 MeV
+/- 36 MeV
42, 78, 114, 150 MeV
Superconducting Energy Recovery Linac (in construction)
Existing world record high brightness linac
Existing world record DC electron gun Existing beam stop New high-current linac
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Georg H. Hoffstaetter Research Opportunity Night November 03, 2017
CLASSE
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Bunche dynamics in 3D field maps
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CLASSE
6 Georg H. Hoffstaetter Research Opportunity Night November 3, 2017
Single particle nonlinear dynamics
(ex. of undergrad honors thesis)
Multi particle beam dynamics
Coherent effects,
i.e. of many particles together (PhD)
Interaction of the beam
and environment (PhD)
Accelerator design, planning,
construction, and operation
Ex.: coupler kick
Ex.: intra beam scattering
Ex.: wake fields
0 1
1
0
mm
mm
Ex.: Coherent Synchrotron Radiation
Ex.: the Cornell FFAG ERL
PhD project: Particle- Beam effects in CBETA
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CLASSE
7 Georg H. Hoffstaetter Research Opportunity Night November 3, 2017
Building a High-Power ERL accelerator at Cornell
6 MeV 6 MeV
+/- 36 MeV
42, 78, 114, 150 MeV
Superconducting Energy Recovery Linac (in construction)
Existing world record high brightness linac
Existing world record DC electron gun Existing beam stop New high-current linac
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Georg H. Hoffstaetter Research Opportunity Night November 03, 2017
CLASSE
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Conclusion
• Help us design, build, study and operate this new kind of particle accelerator.
• ERL group meeting: Thursdays, 4pm, 383 Wilson lab (WebEx meeting with collaborators at Brookhaven National Laboratory)