25th 12th week(05/27/24 - 05/31/24) schedule for LHD experiment
Date

Weekly report :Schedule of the dayDay Btof dire
the ctioweek nMorning (～ 12:15)

Afternoon (12:15 ～ 16:45)

WallGasExperiment implementation system

Remark

Sat:
H2 GD

5/ M
27 o.

Sun:
H2 GD
Mon:None(IA)[IA](10:30 ～ 16:45)ECH, NBI
Measurement of fluctuation of electron velocity distribution function from high harmonics electron cyclotron emission/Direct observation of bulk phase space dynamics
during the energetic particle driven Geodesic Acoustic Mode/Manipulation of radial electric field using perpendicular neutral beam injection for improved confinement

5/ Tu C
28 . W# Opt. Pol.
1CW
2CW
3CW

Rax
3.6
3.75
3.6Bax
1.0
1.375
2.75

gamma
1.25381.25381.2538

Bq
100.0
100.0
100.0

SC

NoneDiv
Cryo[MAP](10:30 ～ 14:45)ECH, NBI
Study of hydrogen molecular band emission, Micro-trench measurement of incident
ion angles and boron deposition at the divertor surface

5/ W CC
29 e. W

# Opt. Pol.
1CCW

Rax
3.6

Bax
2.75

gamma
1.2538

Bq
100.0

SC

[IA](14:45 ～ 16:45)ECH, NBI
Phase-space structure of fast-ions interacting with Alfven waves# Opt. Pol.
1CCW
2 ✓ CCW
3 ✓ CCWRax
3.75
3.6
3.6

Bax
0.5
0.50.75

gamma
1.25381.25381.2538

Bq
100.0
100.0
100.0

SCHe GD
DivCryo[IA](10:30 ～ 16:45)ECH, NBI
Wave-particle interaction at low frequency mode, Phase space dynamics triggered by MHD burst through Landau and transit-time damping, Investigation of interaction
between broadband phase space dynamics and wide frequency range of fluctuations during the energetic particle induced MHD burst event# Opt. Pol.
1CCW
2CCW
5/ Th C
✓3CCW
C
30 . W

Rax
3.53
3.6
3.55

Bax
2.80452.75
2.7887gamma
1.25381.25381.2538[IA](10:30 ～ 14:15)ECH, NBI
Phase-space tomography experiment, Compare
trapped electron modes in W7-X and LHD

5/ Fr C
31 . W# Opt. Pol.
1CW

Rax
3.55

Bax
2.7887gamma
1.2538

Bq
100.0

Bq
100.0
100.0
100.0

SC

NoneDivCryo[TC](14:15 ～ 15:30)ECH
Diagnostics of relativistic electrons in high electron
temperature plasmas
SC# Opt. Pol.
1
CWRax
3.55

Bax
2.7887gamma
1.2538Bq100.0【Responsible person】S.Sakakibara 10:30-13:10 nNBI
modulation、56 GHz ECH/ H.Hayashi
modulation、Fast Thomson【Coordinator#1】T. Kawate
13:30-15:15 Fast CXS、NBI#4【Coordinator#2】M.Goto
GV close、ECE、HIBP
15:45-16:45 HIBP
H2, 【ECH】H.Igami
Ar, 【Gas・vacuum・shutter】A/B(id:723) Impurity【Low temp.】ohba.kouki
CH4 【LID power】M.Kawai/K.Nagahara pellet/TESPEL(id:724) Impurity gas puff
【Coil power】takami.shigeyuki(id:752) NBI: Injection into the【central ctrl.】nonomura.mikidischarges with low fields【data proc.】M.Ohsuna【EXP LAN】nakamura.osamu(MAP)【Responsible person】K.Tanaka /CXS shutters MUST be closed
H.Hayashi
before the change of mag. config.
【Coordinator#1】G.Motojima/K.Oga(id:724) Impurity gas puffwa(id:734) Probe: HDLP Probe【Coordinator#2】C.Suzuki/R.Seki
access near LCFS
【ECH】M.Nishiura(id:752) NBI: Injection into theH2, 【Gas・vacuum・shutter】C/Adischarges with low fields(id:760) Insertion of sample, etc:
Ar 【Low temp.】ohba.kouki
Exposure of a material sample to【LID power】M.Kawai/K.Nagahara divertor plasma by themanipulators【Coil power】takami.shigeyuki(id:762) Impurity powder dropper【central ctrl.】nonomura.miki【data proc.】M.Ohsuna【EXP LAN】inoue.tomoyuki(IA)【Responsible person】N.Tamura / C pellet, CH4 puff, Fast TS,H.Hayashi
Fast CXS, ECE, Doppler【Coordinator#1】H.Funaba
Reflectometer(event【Coordinator#2】M.Gototrigger mode)
H2, 【ECH】N.Kenmochi【Gas・vacuum・shutter】B/C
Ar, 【Low temp.】ohba.kouki
Impurity
CH4 【LID power】M.Kawai/K.Nagahara (id:723)
pellet/TESPEL【Coil power】takami.shigeyuki(id:724) Impurity gas puff
【central ctrl.】nonomura.miki(id:751) Mag. Conf.: Rax ＝【data proc.】M.Ohsuna
3.5, 3.53 m【EXP LAN】nakamura.osamu[MAP](15:30 ～ 16:45)ECH, NBI
Understanding of the evolution of cosmic organic dust
in reaction with plasma
SC# Opt. Pol.
1CWRax
3.6

Bax
2.75

gamma
1.2538Bq100.0

SCDiv
CryoH2,CH4,N2(IA)【Responsible person】S.Masuzaki /HIBP, CXS, PCI, MSE
H.Hayashi(TC)【Coordinator#1】R.Seki/M.Nishiura/M.Fast Thomson, OverlappedThomson laser
Kobayashi【Coordinator#2】Y.Takemura/M.Yoshi (MAP)
CXS, (EUV, VUV, VIS)
numa/C.Suzuki
spectrometers, Sample【ECH】R.Yanai
manipulator【Gas・vacuum・shutter】A/B(id:724) Impurity gas puff
【Low temp.】noguchi.hiroki(id:728) Mag. Conf.: 3.55 m =<Rax < 3.6 m【LID power】M.Kawai/K.Nagahara(id:760) Insertion of sample, etc:
【Coil power】takami.shigeyuki
Exposure of a material sample to【central ctrl.】nonomura.miki
divertor plasma by the【data proc.】M.Ohsuna
manipulators【EXP LAN】inoue.tomoyuki

LHD projectPrepared by

Daily Schedule

T.Kobayashi

DateExperimental Subject

2024/5/28(Tue)Measurement of fluctuation of electron velocity distribution function from high harmonics
electron cyclotron emission/Direct observation of bulk phase space dynamics during theenergetic particle driven Geodesic Acoustic Mode/Manipulation of radial electric fieldusing perpendicular neutral beam injection for improved confinement

Exp. No.

Experimental Session Group1370

IA89Time Table

10Session Coordinator

T. Kawate[2256] / M.Goto[2290]
11UP

1213

1415

16

1718

1920

21

DN

[IA]

Details and Experimental Conditions

Gas[IA](10:30 ～ 16:45) ECH, NBI

H2,Ar,CH

10:30-13:10 Measurement of fluctuation of electron velocity distribution function from high harmonics 4electron cyclotron emission (E. Kawamori (National Cheng Kung Univ.), H. Igami)
13:10-13:20 NBI calb. (3 shots)
13:20-13:30 [Change of Mag. Config.: 3.6 m, 1.0 T, 1.2538, 100% -> 3.75 m, 1.375T, 1.2538, 100%]
13:30-15:15 Direct observation of bulk phase space dynamics during the energetic particle driven
Geodesic Acoustic Mode (Y. Kawachi (Nagoya Univ.), T. Kobayashi)
15:15-15:45 [Change of Mag. Config.: 3.75 m, 1.375T, 1.2538, 100% -> 3.6 m, 2.75 T, 1.2538, 100%]
15:45-16:45 Manipulation of radial electric field using perpendicular neutral beam injection forimproved confinement (Z. Lin (UCI), M. Osakabe)
Sequence:3min#12
3OptionPolarityCWCWCW

22Rax(m)3.6
3.75
3.6Bax(T)
1.0
1.375
2.75

gamma
1.25381.25381.2538

Bq(%)
100.0
100.0
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): None , GD(After Exp.): None , Cryopump(During Exp.): on
Remarks(IA)
10:30-13:10 nNBI modulation、56 GHz ECH modulation、Fast Thomson
13:30-15:15 Fast CXS、NBI#4 GV close、ECE、HIBP
15:45-16:45 HIBP
【Precautions for today's LHD experiments】(id:723) Impurity pellet/TESPEL(id:724) Impurity gas puff
(id:752) NBI: Injection into the discharges with low fields

LHD projectPrepared byDaily Schedule

N.Tamura

Date

Experimental Subject

2024/5/29(Wed)Study of hydrogen molecular band emission, Micro-trench measurement ofincident ion angles and boron deposition at the divertor surface
Phase-space structure of fast-ions interacting with Alfven waves

Exp. No.

Experimental Session Group

Session Coordinator

1371

MAP/IA

G.Motojima[2142] / C.Suzuki[2255]
K.Ogawa[2229] / R.Seki[2201]

89Time Table

1011UP

1213

14[MAP]

15[IA]

161718

1920

Gas[MAP](10:30 ～ 14:45) ECH, NBI
10:30-12:30 Study of hydrogen molecular band emission (S. Brezinsek(FZJ), M. Goto)
12:33-14:03 Micro-trench measurement of incident ion angles and boron deposition at thedivertor surface (S. Abe(PPPL), Masuzaki)
14:06-14:12 NBI calib. (3 shots)
14:12-14:42 [Change of Mag. Config: 3.6m, 2.75T --> 3.75m, 0.75T]
Polarity
CCW

Rax(m)
3.6

Bax(T)
2.75

gamma
1.2538

Bq(%)
100.0

Polarity
CCW
CCW
CCW

Rax(m)
3.75
3.6
3.6Bax(T)
0.5
0.5
0.75

gamma
1.25381.25381.2538

Bq(%)
100.0
100.0
100.0

H2,Ar

Subcooled[IA](14:45 ～ 16:45) ECH, NBI
14:42-16:45 Phase-space structure of fast-ions interacting with Alfven waves（Nagaoka）
Sequence:3min#Option
12
✓3✓

22

DN

Details and Experimental Conditions

Sequence:3min#Option1

21

H2

Subcooled

Wall Conditioning

GD(Before Exp.): None , GD(After Exp.): He , Cryopump(During Exp.): onRemarks(MAP)
CXS shutters MUST be closed before the change of mag. config.
【Precautions for today's LHD experiments】(id:724) Impurity gas puff
(id:734) Probe: HDLP Probe access near LCFS
(id:752) NBI: Injection into the discharges with low fields(id:760) Insertion of sample, etc: Exposure of a material sample to divertor plasma by the manipulators(id:762) Impurity powder dropper

LHD projectPrepared by

Daily Schedule

N.Tamura

Date

Experimental Subject

2024/5/30(Thu)

Wave-particle interaction at low frequency mode, Phase space dynamics triggeredby MHD burst through Landau and transit-time damping, Investigation ofinteraction between broadband phase space dynamics and wide frequency rangeof fluctuations during the energetic particle induced MHD burst event

Exp. No.

Experimental Session Group1372

IA89Time Table

10Session Coordinator

H.Funaba[2144] / M.Goto[2290]
11UP

1213

1415

1617181920

Gas[IA](10:30 ～ 16:45) ECH, NBI
10:30-12:15 Wave-particle interaction at low frequency mode (K. Ida)
12:15-12:30 [Change of Mag. Config.: 3.53m, 2.8045T -> 3.6m, 2.75T]
12:30-14:24 Phase space dynamics triggered by MHD burst through Landau and transit-time damping (K. Ida)
14:24-14:33 NBI calib. (3 shots)
14:33-16:45 Investigation of interaction between broadband phase space dynamics and wide frequency range offluctuations during the energetic particle induced MHD burst event (Y. Kawachi (Nagoya U.), T. Kobayashi)Sequence:3minOption✓Polarity
CCW
CCW
CCW

Rax(m)
3.53
3.6
3.55

Bax(T)
2.80452.75
2.7887gamma
1.25381.25381.2538

Bq(%)
100.0
100.0
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): He , GD(After Exp.): None , Cryopump(During Exp.): onRemarks(IA)C pellet, CH4 puff, Fast TS, Fast CXS, ECE, Doppler Reflectometer(event trigger mode)【Precautions for today's LHD experiments】(id:723) Impurity pellet/TESPEL(id:724) Impurity gas puff
(id:751) Mag. Conf.: Rax ＝ 3.5, 3.53 m

22

DN

[IA]

Details and Experimental Conditions

#1
2
3

21

H2,Ar,CH
4

LHD projectPrepared byDaily Schedule

N.Tamura

Date

Experimental Subject

2024/5/31(Fri)

Phase-space tomography experiment, Compare trapped electron modes in W7-X
and LHD
Diagnostics of relativistic electrons in high electron temperature plasmasUnderstanding of the evolution of cosmic organic dust in reaction with plasma

Exp. No.

Experimental Session Group

Session Coordinator

IA/TC/MAP

R.Seki[2201] / Y.Takemura[2167]
M.Nishiura[2184] / M.Yoshinuma[2172]
M.Kobayashi[2169] / C.Suzuki[2255]

1373
89Time Table

1011

UP

1213

[IA]

14[TC]

15

16

[MAP]

1718

1920

2122

DN

Details and Experimental Conditions

Gas[IA](10:30 ～ 14:15) ECH, NBI
10:30-13:10; Phase-space tomography experiment(T. Kobayashi)# NBI calib. (3 shots) must be done by 12:00.
13:10-14:20; Compare trapped electron modes in W7-X and LHD(A. Krämer-Flecken, T.Tokuzawa)

H2,CH4

NBI pattern #3: (#1, #2, #3, #4, #5) – (#2, #3, #4, #5) – (#2, #3, #4) – (#3, #4)
Sequence:3min#1

OptionPolarity
CW

Rax(m)
3.55

Bax(T)
2.7887gamma
1.2538

Bq(%)
100.0

Subcooled[TC](14:15 ～ 15:30) ECH

14:20-15:25 Diagnostics of relativistic electrons in high electron temperature plasmas (H. Funaba)

H2

Sequence:3min#1

OptionPolarity
CW

Rax(m)
3.55

Bax(T)
2.7887gamma
1.2538

Bq(%)
100.0

Subcooled[MAP](15:30 ～ 16:45) ECH, NBI
15:25-15:40 [Change of Mag. Config.: 3.55m, 2.7887T -> 3.60m, 2.75T)
15:40-16:45; Understanding of the evolution of cosmic organic dust in reaction with plasma(I.
Sakon (U. Tokyo), M. Kobayashi)Sequence:3min#Option1

Polarity
CW

Rax(m)
3.6

Bax(T)
2.75

gamma
1.2538

Bq(%)
100.0

H2,N2

Subcooled

Wall Conditioning

GD(Before Exp.): None , Cryopump(During Exp.): onRemarks(IA)
HIBP, CXS, PCI, MSE(TC)Fast Thomson, Overlapped Thomson laser(MAP)
CXS, (EUV, VUV, VIS) spectrometers, Sample manipulator【Precautions for today's LHD experiments】(id:724) Impurity gas puff
(id:728) Mag. Conf.: 3.55 m =< Rax < 3.6 m(id:760) Insertion of sample, etc: Exposure of a material sample to divertor plasma by the manipulators