25th 9th week(05/06/24 - 05/10/24) schedule for LHD experiment
Date

Weekly report :Schedule of the day

Day Btof dire
the ctioweek nMorning (～ 12:15)

Afternoon (12:15 ～ 16:45)

WallGasExperiment implementation system

Remark

5/ M
6 o.

5/ Tu
7.

None

(TC)

[TC](10:30 ～ 16:45)ECH, NBI
Characterization of impurity ion dynamics, turbulence suppression by IPD, density limit in relation to edge turbulence

5/ W CC
8 e. W# Opt. Pol.
1
CCW
2
CCW
3
CCW
4
CCW

Rax
3.55
3.6
3.75
3.75

Bax
2.7887
2.75
2.64
1.375

gamma
1.25381.25381.25381.2538Bq100.0
100.0
100.0
100.0

SCHe GD【Responsible person】S.Masuzaki / Impurity gas puff (CH4)CXS (B profile), Realtime TS
H.Hayashi
LID(14:24-16:45), CO2, FIR,
【Coordinator#1】M.Nishiura
PCI, DBS, Fast TS【Coordinator#2】M.Yoshinuma【ECH】H.Takahashi(id:724) Impurity gas puff
H2, 【Gas・vacuum・shutter】C/A(id:728) Mag. Conf.: 3.55 m =<Rax < 3.6 m
CH4 【Low temp.】noguchi.hiroki【LID power】M.Kawai/K.Nagahara (id:731) Mag. Conf.: Using LID
coil【Coil power】tanoue.hiroyuki(id:752) NBI: Injection into the【central ctrl.】nonomura.mikidischarges with low fields【data proc.】M.Ohsuna(id:762) Impurity powder【EXP LAN】nakamura.osamu
dropper[TC](10:30 ～ 16:45)ECH, NBI
Investigation of turbulence and heat propagation, electron temperature anisotropy# Opt. Pol.
1
CW

Rax
3.6

Bax
2.75

gamma
1.2538

Bq
100.0

H2,
Ar

H2,He,
N2,Ne,Ar,Kr【Responsible person】M.Osakabe / Manipulator(10.5L), CXS,Spectroscopy(EUV, VUV, VIS),H.Hayashi
LID(3000A, 11:30-16:45)【Coordinator#1】M. Kobayashi【Coordinator#2】M. Shoji(id:724) Impurity gas puff
【ECH】H.Takahashi(id:731) Mag. Conf.: Using LID【Gas・vacuum・shutter】A/Bcoil(id:748) ECH: off-axis injection【Low temp.】noguchi.hiroki【LID power】M.Kawai/K.Nagahara (Combined)(id:760) Insertion of sample,【Coil power】tanoue.hiroyuki
etc: Exposure of a material【central ctrl.】nonomura.miki
sample to divertor plasma by【data proc.】M.Ohsuna
the manipulators【EXP LAN】nakamura.osamu

None

5/ Th C9. WDiv
Cryo

5/ Fr CC
10 . W

Rax
3.6
3.85
3.9

Bax
2.75
2.57142.5385gamma
1.25381.25381.2538

Bq
100.0
100.0
100.0

(id:724) Impurity
gas puff(id:748) ECH: offaxis injection(Combined)(MAP)Sample[MAP](10:30 ～ 16:45)ECH, NBI
Understanding of the evolution of cosmic organic dust, Te locking at magnetic island# Opt. Pol.
1CCW
2CCW
3 ✓ CCW(TC)FTS, fast CXS,
BS(position scan),
HIBP, MSE, PCI【Responsible person】T.Seki /H.Hayashi【Coordinator#1】T.Tokuzawa【Coordinator#2】A.Shimizu【ECH】R.Yanai【Gas・vacuum・shutter】B/C【Low temp.】noguchi.hiroki【LID power】M.Kawai/K.Nagahara【Coil power】takami.shigeyuki【central ctrl.】nonomura.miki【data proc.】M.Ohsuna【EXP LAN】inoue.tomoyuki

SCSCNone

LHD projectPrepared by

Daily Schedule

N.Tamura

Date

Experimental Subject

2024/5/8(Wed)Characterization of impurity ion dynamics, turbulence suppression by
IPD, density limit in relation to edge turbulenceExp. No.

Experimental Session Group

1359

TC
89Time Table

10Session Coordinator

M.Nishiura[2184] / M.Yoshinuma[2172]
11UP

1213141516171819202122

DN

[TC]

Details and Experimental Conditions

Gas[TC](10:30 ～ 16:45) ECH, NBI
H2,CH410:30-11:27 Characterization and modelling of the parallel dynamics of impurity ions (Jaime de la
Riva Villen(Ciemat), N. Tamura)
11:27-11:37 [Change of Mag. Config: 3.55m, 2.7887T -> 3.6m, 2.75T]
11:37-12:58 Understanding Turbulence Suppression Mechanisms in Boron-IPD Experiments (T.
Kinoshita(Kyushu U.), K. Tanaka)
13:01-13:07 NBI calib. (3 shots)
13:07-13:27 [Change of Mag. Config: 3.6m, 2.75T -> 3.75m, 2.64T]
13:27-14:21 Characterization and modelling of the parallel dynamics of impurity ions (Jaime de la
Riva Villen(Ciemat), N. Tamura)
14:24-15:24 Density limit in relation to edge turbulence(G. Motojima)
15:24-15:44 [Change of Mag. Config: 3.75m, 2.64T -> 3.75m, 1.375T]
15:44-16:45 Density limit in relation to edge turbulence(G. Motojima)
Sequence:3min#Option1234

Polarity
CCW
CCW
CCW
CCW

Rax(m)
3.55
3.6
3.75
3.75

Bax(T)
2.7887
2.75
2.64
1.375

gamma
1.25381.25381.25381.2538

Bq(%)
100.0
100.0
100.0
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): None , GD(After Exp.): He , Cryopump(During Exp.): off
Remarks(TC)
Impurity gas puff (CH4)CXS (B profile), Realtime TS
LID(14:24-16:45), CO2, FIR, PCI, DBS, Fast TS【Precautions for today's LHD experiments】(id:724) Impurity gas puff
(id:728) Mag. Conf.: 3.55 m =< Rax < 3.6 m(id:731) Mag. Conf.: Using LID coil
(id:752) NBI: Injection into the discharges with low fields(id:762) Impurity powder dropper

LHD projectPrepared byDaily Schedule

N.Tamura

Date

Experimental Subject

2024/5/9(Thu)

Investigation of turbulence and heat propagation, electron temperature
anisotropy

Exp. No.

Experimental Session Group1360

TC
89

Time Table

10Session Coordinator

T.Tokuzawa[2217] / A.Shimizu[2454]
11UP

121314151617181920Gas[TC](10:30 ～ 16:45) ECH, NBI
10:30-15:40 Investigation of turbulence and heat propagation characteristics in modulated ECHexperiments (N.Kenmochi)
15:40-16:45 Experimental study of the electron temperature anisotropy by using the LHD
Thomson scattering system (I. Yamada)Polarity
CW

Rax(m)
3.6

Bax(T)
2.75

gamma
1.2538

Bq(%)
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): He , GD(After Exp.): None , Cryopump(During Exp.): on
Remarks(TC)FTS, fast CXS, BS(position scan), HIBP, MSE, PCI【Precautions for today's LHD experiments】(id:724) Impurity gas puff(id:748) ECH: off-axis injection (Combined)

22

DN

[TC]

Details and Experimental Conditions

Sequence:3min#Option
121

H2,Ar

LHD projectPrepared byDaily Schedule

M.Kobayashi

DateExperimental Subject

2024/5/10(Fri)

Understanding of the evolution of cosmic organic dust, Te locking atmagnetic island

Exp. No.

Experimental Session Group

1361

MAP
89Time Table

10Session Coordinator

M. Kobayashi[2169] / M. Shoji[2151]
11UP

1213

14

15

16

17

18

1920

21

DN

[MAP]

Details and Experimental Conditions

Gas[MAP](10:30 ～ 16:45) ECH, NBI
10:30-11:30 Understanding of the evolution of cosmic organic dust in reaction with plasma (I.
Sakon(U. Tokyo), M. Kobayashi)
11:30-16:45 Electron temperature locking at edge magnetic island during detachment (M. Kobayashi)# [Change of Mag. Config.: 3.6m, 2.75T -> 3.85m, 2.5714T} will be done around 12:40.

H2,He,N2,Ne,Ar,Kr

NBI pattern #7: (#1, #2, #3, #4, #5) - (#1, #2, #3, #4) - (#1, #2, #3) - (#1, #2)
Sequence:3min#123Option✓PolarityCCWCCWCCWRax(m)3.6
3.85
3.9Bax(T)
2.75
2.57142.538522

gamma
1.25381.25381.2538

Bq(%)
100.0
100.0
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): None , Cryopump(During Exp.): off
Remarks(MAP)Sample Manipulator(10.5L), CXS, Spectroscopy(EUV, VUV, VIS), LID(3000A, 11:30-16:45)【Precautions for today's LHD experiments】(id:724) Impurity gas puff
(id:731) Mag. Conf.: Using LID coil
(id:748) ECH: off-axis injection (Combined)(id:760) Insertion of sample, etc: Exposure of a material sample to divertor plasma by the manipulators