TY - JOUR
T1 - Subradiant spontaneous undulator emission through collective suppression of shot noise
AU - Ratner, D.
AU - Hemsing, E.
AU - Gover, A.
AU - Marineelli, A.
AU - Nause, A.
N1 - Publisher Copyright:
© 2015, American Physical Society. All rights reserved.
PY - 2015/5/21
Y1 - 2015/5/21
N2 - The phenomenon of Dicke's subradiance, in which the collective properties of a system suppress radiation, has received broad interest in atomic physics. Recent theoretical papers in the field of relativistic electron beams have proposed schemes to achieve subradiance through suppression of shot noise current fluctuations. The resulting "quiet" beam generates less spontaneous radiation than emitted even by a shot noise beam when oscillating in an undulator. Quiet beams could have diverse accelerator applications, including lowering power requirements for seeded free-electron lasers and improving efficiency of hadron cooling. In this paper we present experimental observation of a strong reduction in undulator radiation, demonstrating the feasibility of noise suppression as a practical tool in accelerator physics.
AB - The phenomenon of Dicke's subradiance, in which the collective properties of a system suppress radiation, has received broad interest in atomic physics. Recent theoretical papers in the field of relativistic electron beams have proposed schemes to achieve subradiance through suppression of shot noise current fluctuations. The resulting "quiet" beam generates less spontaneous radiation than emitted even by a shot noise beam when oscillating in an undulator. Quiet beams could have diverse accelerator applications, including lowering power requirements for seeded free-electron lasers and improving efficiency of hadron cooling. In this paper we present experimental observation of a strong reduction in undulator radiation, demonstrating the feasibility of noise suppression as a practical tool in accelerator physics.
UR - http://www.scopus.com/inward/record.url?scp=84934880941&partnerID=8YFLogxK
U2 - 10.1103/PhysRevSTAB.18.050703
DO - 10.1103/PhysRevSTAB.18.050703
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84934880941
SN - 1098-4402
VL - 18
JO - Physical Review Special Topics - Accelerators and Beams
JF - Physical Review Special Topics - Accelerators and Beams
IS - 5
M1 - 050703
ER -