VACUUM PROPERTY IMPROVEMENT OF A L=1 HELIOTRON TORSATRON DEVICE BY HIGHER HARMONIC MODULATION ON A HELICAL-COIL/

Authors
MATSUOKA A KOGOSHI S KATSURAI M
Citation
A. Matsuoka et al., VACUUM PROPERTY IMPROVEMENT OF A L=1 HELIOTRON TORSATRON DEVICE BY HIGHER HARMONIC MODULATION ON A HELICAL-COIL/, Journal of the Physical Society of Japan, 63(1), 1994, pp. 121-126
Citations number
4
Categorie Soggetti
Physics
Journal title
Journal of the Physical Society of Japan → ACNP
ISSN journal
00319015
Volume
63
Issue
1
Year of publication
1994
Pages
121 - 126
Database
ISI
SICI code
0031-9015(1994)63:1<121:VPIOAL>2.0.ZU;2-9
Abstract
A winding law of a helical coil with higher harmonic modulation can pr oduce a deep magnetic well because of a suitable Vertical field format ion. The sin (n phi) modulation (n = 1, 2, 3, 4) on a L = 1 helical co il makes magnetic surfaces resembling those of L = n helical coil at t heta = 0. Also it increases a magnetic ripple and rotational transform on a magnetic axis.