A new diagnostic technique has been developed that couples a spectrometer and an image-intensified camera into the traditional motional Stark effect (MSE) system on DIII-D. The image-intensified camera syncs with the photo-elastic modulators to spectrally resolve the Stokes parameters across the Stark multiplet. Polarization dependent phase shift, likely from a plasma facing mirror, leads to the spectropolarimeter measuring a variation in the polarization angle across the MSE spectrum of ∼8°.
REFERENCES
1.
F. M.
Levinton
et al., Phys. Rev. Lett.
63
, 2060
(1989
).2.
D.
Wroblewski
et al., Rev. Sci. Instrum.
61
, 3552
(1990
).3.
C. T.
Holcomb
et al., Rev. Sci. Instrum.
79
, 10F518
(2008
).4.
M. C. C.
Messmer
et al., Nucl. Fusion
58
, 016030
(2017
).5.
R. T.
Mumgaard
et al., Rev. Sci. Instrum.
87
, 11E527
(2016
).6.
B. W.
Rice
et al., Rev. Sci. Instrum.
66
, 373
(1995
).7.
M. J.
Lanctot
et al., Rev. Sci. Instrum.
83
, 10E319
(2012
).8.
B. S.
Victor
et al., Rev. Sci. Instrum.
87
, 11E126
(2016
).9.
B. W.
Rice
et al., Rev. Sci. Instrum.
70
, 815
(1999
).10.
M. A.
Makowski
et al., Rev. Sci. Instrum.
76
, 023706
(2005
).11.
L. L.
Lao
et al., Nucl. Fusion
25
, 1611
(1985
).12.
A.
Thorman
, Ph.D. thesis, Australian National University
, 2018
.13.
A.
Thorman
, J. Quant. Spectrosc. Radiat. Transfer
207
, 8
(2018
).14.
N. A.
Pablant
et al., Rev. Sci. Instrum.
81
, 10D729
(2010
).© 2021 Author(s).
2021
Author(s)
You do not currently have access to this content.
