Discharges with safety factor, q, <1 in a noncircular tokamak

T. H. Osborne; R. N. Dexter; S. C. Prager

doi:10.1103/PhysRevLett.49.734

Discharges with safety factor, q, <1 in a noncircular tokamak

T. H. Osborne, R. N. Dexter, S. C. Prager

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24 Scopus citations

Abstract

Characteristics of plasmas in Tokapole II (a noncircular poloidal divertor tokamak) with directly measured q as low as 0.4 are discussed. This is a q regime bounded by well studied q>1 tokamaks and q0.1 reversed-field pinches. After q drops below 1, soft-x-ray sawtooth oscillations begin. During the oscillations the central q values remain stationary and below 1, while a small oscillation in the edge q values near q=1 is observed.

Original language	English (US)
Pages (from-to)	734-737
Number of pages	4
Journal	Physical review letters
Volume	49
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.49.734
State	Published - 1982

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.49.734

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title = "Discharges with safety factor, q, <1 in a noncircular tokamak",

abstract = "Characteristics of plasmas in Tokapole II (a noncircular poloidal divertor tokamak) with directly measured q as low as 0.4 are discussed. This is a q regime bounded by well studied q>1 tokamaks and q0.1 reversed-field pinches. After q drops below 1, soft-x-ray sawtooth oscillations begin. During the oscillations the central q values remain stationary and below 1, while a small oscillation in the edge q values near q=1 is observed.",

author = "Osborne, {T. H.} and Dexter, {R. N.} and Prager, {S. C.}",

year = "1982",

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journal = "Physical review letters",

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T1 - Discharges with safety factor, q, <1 in a noncircular tokamak

AU - Osborne, T. H.

AU - Dexter, R. N.

AU - Prager, S. C.

PY - 1982

Y1 - 1982

N2 - Characteristics of plasmas in Tokapole II (a noncircular poloidal divertor tokamak) with directly measured q as low as 0.4 are discussed. This is a q regime bounded by well studied q>1 tokamaks and q0.1 reversed-field pinches. After q drops below 1, soft-x-ray sawtooth oscillations begin. During the oscillations the central q values remain stationary and below 1, while a small oscillation in the edge q values near q=1 is observed.

AB - Characteristics of plasmas in Tokapole II (a noncircular poloidal divertor tokamak) with directly measured q as low as 0.4 are discussed. This is a q regime bounded by well studied q>1 tokamaks and q0.1 reversed-field pinches. After q drops below 1, soft-x-ray sawtooth oscillations begin. During the oscillations the central q values remain stationary and below 1, while a small oscillation in the edge q values near q=1 is observed.

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ER -

Discharges with safety factor, q, <1 in a noncircular tokamak

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