The new C-2W Thomson scattering (TS) diagnostic consists of two individual subsystems for monitoring electron temperature (Te) and density (ne): one system in the central region is currently operational, and the second system is being commissioned to monitor the open field line region. Validating the performance of the TS’s custom designed system components and unique calibration of the detection system and diagnostic as a whole is crucial to obtaining high precision Te and ne profiles of C-2W’s plasma. The major components include a diode-pumped Nd:YAG laser which produces 35 pulses at up to 20 kHz, uniquely designed collection lenses with a fast numerical aperture, and uniquely designed polychromators with filters sets to optimize a Te ranging from 10 eV to 2 keV. This paper describes the design principles and techniques used to characterize the main components of the TS diagnostic on C-2W, as well as the results of Rayleigh scattering calibrations performed for the whole system response.

1.
M. W.
Binderbauer
 et al,
AIP Conf. Proc.
1721
,
030003
(
2016
).
2.
M. C.
Thompson
,
T. M.
Schindler
,
R.
Mendoza
,
H.
Gota
,
S.
Putvinski
,
M. W.
Binderbauer
, and
TAE Team
,
Rev. Sci. Instrum.
89
,
10K114
(
2018
).
3.
K.
Zhai
 et al, in
APS-DPP Conference Poster
,
2016
.
4.
K.
Zhai
,
T.
Schindler
,
A.
Ottaviano
,
H.
Zhang
,
D.
Fallah
,
J.
Wells
,
E.
Parke
,
M. C.
Thompson
, and
TAE Team
, “Thomson scattering systems on C-2W field-reversed configuration plasma experiment,”
Rev. Sci. Instrum.
(these proceedings).
5.
B.
LeBlanc
 et al, in
APS-DPP Conference Poster
,
2017
.
6.
J. A.
Reusch
,
M. T.
Borchardt
,
D. J.
Den Hartog
,
A. F.
Falkowski
,
D. J.
Holly
,
R.
O’Connell
, and
H. D.
Stephens
,
Rev. Sci. Instrum.
79
,
10E733
(
2008
).
7.
V.
Ashoori
,
M.
Shayganmanesh
, and
S.
Radmard
, in
Heat Generation and Removal in Solid State Lasers
(
InTech
,
2012
), Chap. 12, pp.
341
376
.
8.
General Atomics Polychromator Systems User Manual Polychromator Model GAPB-1064-IK-I Document 4-3248-3MAN, Revision A,
2017
.
9.
EKSPLA ANL940 Laser Series, Technical Description Revision 1711,
2017
.
10.
EKSPLA NL313 Laser Series, Technical Description Revision 1.1,
2017
.
11.
T. M.
Deterly
,
B. D.
Bray
,
C. L.
Hsieh
,
J. A.
Kulchar
,
C.
Liu
, and
D. M.
Ponce
,
IEEE Trans. Plasma Sci.
38
(
7
),
1699
(
2010
).
12.
M.
Born
and
E.
Wolf
,
Principles of Optics Electromagnetic Theory of Propagation, Interference and Diffraction of Light
(
Cambridge University Press
,
1980
).
13.
M.
Sneep
and
W.
Ubachs
,
J. Quant. Spectrosc. Radiat. Transfer
92
,
293
(
2005
).
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