Observation of weak impact of a stochastic magnetic field on fast-ion confinement

G. Fiksel; B. Hudson; D. J. Den Hartog; R. M. Magee; R. O'Connell; S. C. Prager; A. D. Beklemishev; V. I. Davydenko; A. A. Ivanov; Yu A. Tsidulko

doi:10.1103/PhysRevLett.95.125001

Observation of weak impact of a stochastic magnetic field on fast-ion confinement

G. Fiksel, B. Hudson, D. J. Den Hartog, R. M. Magee, R. O'Connell, S. C. Prager, A. D. Beklemishev, V. I. Davydenko, A. A. Ivanov, Yu A. Tsidulko

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Fast ions are observed to be very well confined in the Madison Symmetric Torus reversed field pinch despite the presence of stochastic magnetic field. The fast-ion energy loss is consistent with the classical slowing down rate, and their confinement time is longer than expected by stochastic estimates. Fast-ion confinement is measured from the decay of d-d neutrons following a short pulse of a 20 keV atomic deuterium beam. Ion confinement agrees with computation of particle trajectories in the stochastic magnetic field, and is understood through consideration of ion guiding center islands.

Original language	English (US)
Article number	125001
Journal	Physical review letters
Volume	95
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.95.125001
State	Published - Sep 16 2005

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.95.125001

Cite this

@article{10a82c7b699c40b08f329cf9c12fcbe3,

title = "Observation of weak impact of a stochastic magnetic field on fast-ion confinement",

abstract = "Fast ions are observed to be very well confined in the Madison Symmetric Torus reversed field pinch despite the presence of stochastic magnetic field. The fast-ion energy loss is consistent with the classical slowing down rate, and their confinement time is longer than expected by stochastic estimates. Fast-ion confinement is measured from the decay of d-d neutrons following a short pulse of a 20 keV atomic deuterium beam. Ion confinement agrees with computation of particle trajectories in the stochastic magnetic field, and is understood through consideration of ion guiding center islands.",

author = "G. Fiksel and B. Hudson and \{Den Hartog\}, \{D. J.\} and Magee, \{R. M.\} and R. O'Connell and Prager, \{S. C.\} and Beklemishev, \{A. D.\} and Davydenko, \{V. I.\} and Ivanov, \{A. A.\} and Tsidulko, \{Yu A.\}",

year = "2005",

month = sep,

day = "16",

doi = "10.1103/PhysRevLett.95.125001",

language = "English (US)",

volume = "95",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

TY - JOUR

T1 - Observation of weak impact of a stochastic magnetic field on fast-ion confinement

AU - Fiksel, G.

AU - Hudson, B.

AU - Den Hartog, D. J.

AU - Magee, R. M.

AU - O'Connell, R.

AU - Prager, S. C.

AU - Beklemishev, A. D.

AU - Davydenko, V. I.

AU - Ivanov, A. A.

AU - Tsidulko, Yu A.

PY - 2005/9/16

Y1 - 2005/9/16

N2 - Fast ions are observed to be very well confined in the Madison Symmetric Torus reversed field pinch despite the presence of stochastic magnetic field. The fast-ion energy loss is consistent with the classical slowing down rate, and their confinement time is longer than expected by stochastic estimates. Fast-ion confinement is measured from the decay of d-d neutrons following a short pulse of a 20 keV atomic deuterium beam. Ion confinement agrees with computation of particle trajectories in the stochastic magnetic field, and is understood through consideration of ion guiding center islands.

AB - Fast ions are observed to be very well confined in the Madison Symmetric Torus reversed field pinch despite the presence of stochastic magnetic field. The fast-ion energy loss is consistent with the classical slowing down rate, and their confinement time is longer than expected by stochastic estimates. Fast-ion confinement is measured from the decay of d-d neutrons following a short pulse of a 20 keV atomic deuterium beam. Ion confinement agrees with computation of particle trajectories in the stochastic magnetic field, and is understood through consideration of ion guiding center islands.

UR - https://www.scopus.com/pages/publications/27144498159

UR - https://www.scopus.com/inward/citedby.url?scp=27144498159&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.95.125001

DO - 10.1103/PhysRevLett.95.125001

M3 - Article

C2 - 16197080

AN - SCOPUS:27144498159

SN - 0031-9007

VL - 95

JO - Physical review letters

JF - Physical review letters

IS - 12

M1 - 125001

ER -

Observation of weak impact of a stochastic magnetic field on fast-ion confinement

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this