Radial profiles of electron temperature and density are measured at high spatial (∼1 mm) and temporal (⩾10 μs) resolution using a thermal supersonic helium jet. A highly accurate detection system is applied to well-developed collisional-radiative model codes to produce the profiles. Agreement between this measurement and an edge Thomson scattering measurement is found to be within the error bars (≲20%). The diagnostic is being used to give profiles near the ion cyclotron resonant heating antenna on TEXTOR to better understand RF coupling to the core.

1.
B.
Schweer
,
M.
Brix
, and
M.
Lehnen
,
J. Nucl. Mater.
266
,
673
(
1999
).
2.
O.
Schmitz
 et al,
Plasma Phys. Controlled Fusion
50
,
115004
(
2008
).
3.
U.
Kruezi
,
H.
Stoschus
,
B.
Schweer
,
G.
Sergienko
, and
U.
Samm
,
Rev. Sci. Instrum.
83
,
065107
(
2012
).
4.
A.
Pospieszczyk
 et al,
Nucl. Instrum. Methods Phys. Res. B
72
,
207
(
1992
).
5.
J. M.
Muñoz-Burgos
,
O.
Schmitz
,
S. D.
Loch
, and
C. P.
Ballance
,
Phys. Plasmas
19
,
012501
(
2012
).
6.
R. J.
Colchin
,
D. L.
Hillis
,
R.
Maingi
,
C. C.
Klepper
, and
N. H.
Brooks
,
Rev. Sci. Instrum.
74
,
2068
(
2003
).
7.
N. H.
Brooks
 et al,
Rev. Sci. Instrum.
79
,
10F330
(
2008
).
8.
G.
van Oost
 et al,
Fusion Technol.
12
,
449
(
1987
).
9.
O.
Neubauer
 et al,
Fusion Sci. Technol.
47
,
76
(
2005
).
10.
J. A.
Stillerman
,
T. W.
Fredian
,
K. A.
Klare
, and
G.
Manduchi
,
Rev. Sci. Instrum.
68
,
939
(
1997
).
11.
A.
Hidalgo
,
F. L.
Tabarés
, and
D.
Tafalla
,
Plasma Phys. Controlled Fusion
48
,
527
(
2006
).
12.
H. J.
van der Meiden
 et al,
Rev. Sci. Instrum.
77
,
10E512
(
2006
).
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