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Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Progress and Status ofActive Beam Spectroscopy for ITER
Manfred von Hellermann
10th ITPA diagnostic MeetingKurchatov, Moscow, TRINTI Troitsk
April 10 -14, 2006
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Acknowledgements
FOM / FZJ : Serge Brons, Roger Jaspers,
Olaf Neubauer, Andrey Litnovsky,
Michael Pap
ITER/ IT: Chris Walker, Christian Ingesson, Robin
Barnsley, George Vayakis
Kurchatov: Alexey Gorshkov, Konstantin Vukolov
TNO: Willem Vliegenthart, Kees Moddemeijer
TRINITI: Sergei Tugarinov
UKAEA : Nick Hawkes, Bob Walton, Cliff Marren
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Performance ReviewDNB IssuesPeriscope developmentRadial overlap issuesPort swap Mirror developmentMaintenance IssuesCXRS Pilot Experiment on TextorShared Software Development (EU,RF,US)
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Performance Studiesreviewed…..
EU EFDA contracts 2005EU/RF CXRS Meeting 2005Shared Pilot Experiment 2006
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Performance requirements
1) signal-to-noisea) detection efficiency and instrumentationb) energy dependence for beam stopping and
emission rates2) spatial resolution
a)measurement requirement tableb)overlap of upper and equatorial port viewsc) magnetic field measurements
3) minimisation of blanket cutsa) neutron reductionb) steerability
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
plasmaAplasma = spectrometer Aspectrometer
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
spspb
sol
zz
dd
AndsQn
I
..
2
20
4
1
)(exp
1)(
CX spectral intensity
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
2
2
2
2
exp),,(yxyx
b w
y
w
x
vwwE
Pzyxn
Approximation of Gaussian DNB profile
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
To: P.L.Mondino, E.Di Pietro, T.Inoue, A.Costley, V.Mukhovatov From: A.PanasenkovDate: October 27, 1999
Peak current density60mA/cm^2
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
rTz
wrerf
BLgZe
cdrncI
N
S
obsde
perp
pffeff
zstopzzeCXn
2/
)/(
sin8
}exp{
)(
2
2
,
2/1
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Radial Resolution
Need for Upper and Equatorial periscopes
Poloidal and Toroidal Velocity Measurements
Upper Port 2
Upper Port 3
Radial Resolution for U-ports 2 and 3
a/20
a/30
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
a/20
a/30
w-DNB=0.07m
a/20
a/30
w-DNB=0.07m
a/30
w-DNB=0.07m
a/30
w-DNB=0.07m
a/20E-port
U-port
Radial Resolution for Upper and Equatorial Port
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Beam Issues……
Beam divergenceModulation ??Duty CycleMaintenanceBlanket Cut
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Neutral beam stopping cross-sections
Effective CX Emission rates
0
5
10
15
20
25
30
35
20 40 60 80 100 120 140 160 180 200 220 240E(keV/amu)
Q(1
0-15
m-3
)
HeII
NeX
NVIICVI
BeIV
0
10
20
30
40
40 60 80 100 120 140 160 180 200Beam Energy (keV/amu)
Sign
al-t
o-no
ise
rati
o
He(4%)
C(1.2%)Be(2%)
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TECTilted DNB aimed at magnetic axis
Can blanket cut be reduced without loss of performance ?
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Positive ion source
Negative ion source
Energy(keV/amu) (80+/-10) (D0) (100+/-20)(H0)
Power(MW) 2.8 (full E) 2.2
Neutral Current (A) 16.6 (full E) 22
Species mix 0.85:0.08:0.07 1:0:0
Divergence(mrad) 4.3 5 (10)
Spot size (m) <0.07 <0.1 (0.3)
modulation desirable desirable
Duty cycle 1:4 1:4
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Pos. ion source Neg. ion source
stop(10-20m2) 2.63,4.16,5.32 2.28
Zeta (r/a=0.3) 0.016, 0.002, 0.0004
0.026
cx(HeII)(10-22m2) 3.77, 16.1, 15.9 1.89
cx(CVI)(10-22m2) 25.5, 35.6,17.9 16.02
cx(BeIV)(10-22m2) 14.4, 31.5,22.7 8.42
SNR(HeII) 18 12
SNR(CVI) 58 53
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Port plug allocation
Reference plug : Upper port 3
Alternative plug : Upper port 2
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Serge Brons, FZJAlexey Gorshkov, Kurchatov
Port 3
Port 2
2 legged optics and separate pipe with first mirror andshutter
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Intersections of lines-of-sight with blanket structure
Port plug 3 Port plug 2
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Retractable 3-pipe concept
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Graphical representation of the deflection in meters of the whole unit . The centre of the mirror is bend upward.
DeflectionAnalysis
FZJ
Michael Pap
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
OPTICS
Recent studies at TNO DelftWillem VliegenthartKees Modemeijer
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Alternative Cassegrain configurationImaging of entire DNB path0<r/a<1
Courtesy TNO
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
TNO 2005, Willem Vliegenthart
Cassegrain optics with improvedImaging qualities
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Proposed arrangement of fibre head24 radial channels along DNB5 fibres across (2w)
Core region:15 channels high resolution (<a/30)
Outer region:9 channels low resolution(<a/20)
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Inverse imaging of central 1mm fibre onto DNB, box scale 50 mm, preliminary design, courtesy TNO
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Alignment issues
1) Pre-alignment in assembly phase2) Alignment by rotation of mirror tubes3) Fine-alignment by fibre-holder adjustments
Alignment control1) Radial positions by BES Doppler shifts2) Height and angle with respect to DNB a) In vessel inspection (TV cameras) b) Use of 2-dim fibre array and maximisation of BES signal
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Measuring Capabilities of ITER Core CXRS
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
MSE
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Uport 2
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Port 2
Port 3
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Upper port 2
Upper port 3
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Uport 2
ITER CXRS PILOT
EU:Roger Jaspers & Manfred von Hellermann
RF: Sergei Tugarinov
Pilote Experiment on TEXTOR
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
High Throughput: F/3High Resolution: 2.5 Å/mm
TRINITI Spectrometer, S.Tugarinov
Aims1. Optimisation of spectral instruments and detectors
2. Sensitivity study for MSE and ratiometry for top port
2
2
cos1
sin
I
IP
Aims1. Optimisation of spectral instruments and detectors
2. Sensitivity study for MSE and ratiometry for top port
3. Multi-tasking set-up: MSE/BES/CXRS-D/He/C
s.o.l
bCX
CXz
dsnQ
I4n
CXBES
BESCX
e
z
QI
QI
n
n
CXRS: Ti , vpol,vtor, nz*nb
BES: nb, Pdep, MSE ( Bt, Bpol, q , Rmeas, Er.)
No absolute calibrations!!!!No absolute calibrations!!!!No absolute calibrations!!!!No absolute calibrations!!!!No absolute calibrations!!!!No absolute calibrations!!!!
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
SummaryReview of first mirror position, mirror material,Mirror heating and coolingAllocation of CXRS/BES Upper portReview of opticsSpecification of fibre linkDesired overlap of Core and Edge CXRSUse of beam emission spectroscopyRadial resolution and incremental scansAlignment proceduresMagnetics :Total magnetic fields , pitch angles
Trilateral Eureg io Cluster
FO M -Instituut vo o r PlasmafysicaA sso ciatio n EU RATO M -FO M
TEC
M. von Hellermann
Summary, continuedMeasuring capabilityInstrumentationPilote experiment on TEXTOR