25th 8th week(04/29/24 - 05/03/24) 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

RemarkH2【Responsible person】K.Tanaka /H.Hayashi【Coordinator#1】H.Nakano【Coordinator#2】T.Tokuzawa【ECH】N.Kenmochi【Gas・vacuum・shutter】B/C【Low temp.】ohba.kouki【LID power】M.Kawai/K.Nagahara【Coil power】takami.shigeyuki【central ctrl.】maeno.hiroya【data proc.】M.Ohsuna【EXP LAN】inoue.tomoyuki

H2,Ar【Responsible person】N.Tamura /(IA)HIBP, MSE, LID(cancel, 12:05H.Hayashi【Coordinator#1】T.kobayashi/K.Ogawa 13:30)【Coordinator#2】A.Shimizu/T.Kawate (TC)ECE, cECE, HIBP, realtime-TS,BS【ECH】R.Yanai【Gas・vacuum・shutter】A/B(id:724) Impurity gas puff
【Low temp.】ohba.kouki(id:730) ECH: Overdense heating(id:731) Mag. Conf.: Using LID coil
【LID power】M.Kawai/K.Nagahara(id:733) High plasma current exp.
【Coil power】tanoue.hiroyuki(100 kA =< Ip < 150kA) (Combined)【central ctrl.】maeno.hiroya(id:748) ECH: off-axis injection【data proc.】M.Ohsuna(Combined)(id:752) NBI: Injection into the【EXP LAN】nakamura.osamu

4/ M
29 o.

4/ Tu
30 .

None

[TC](10:30 ～ 16:45)ECH, NBI
Validation of neutral beam current drive in LHD for numerical estimation, Assessment of geometrical effect on transport through quadrupole field scan

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

Rax
3.6
3.6
3.6

Bax
2.75
1.375
1.375

gamma1.2538
1.17391.2538SCNoneDiv
Cryo[TC](10:30 ～ 11:45)ECH, NBI
Demonstration of real-time ECH plasma control by thedata assimilation system ASTI

5/ Th C
2. W

Bq
100.0
100.00.0# Opt. Pol.
1CW

Rax
3.6

Bax
2.75

gamma
1.2538

Bq
100.0

SC

[IA](11:45 ～ 13:30)ECH, NBI
Interaction between GAM and turbulence# Opt. Pol.
1CW
2CW

Rax
3.75
3.75

Bax
1.375
1.3

gamma
1.25381.2538Bq
100.0
100.0SCRax
3.6

Bax
2.75

gamma
1.2538Bq
100.0(id:738) Mag. Conf.: Exp.
with low gamma(Combined)(id:744) Mag. Conf.: Bq =0%, 150%, 200%
(id:752) NBI: Injection
into the discharges withlow fields(TC)Realtime-TS, BS, C-CXS(Ti) with
NBI#5

[TC](13:30 ～ 16:45)ECH, NBI
Characteristics of millimeter wave vortex on heating,current drive, and propagation in high-density plasmas# Opt. Pol.
1CW(TC)Required Diag.:
MSE, FIDA, CXS, PCI,
Reflectometer

SCDiv
Cryodischarges with low fields

5/ Fr3.

LHD projectPrepared byDaily Schedule

N.TamuraDate2024/5/1(Wed)Experimental Subject

Validation of neutral beam current drive in LHD for numericalestimation, Assessment of geometrical effect on transport throughquadrupole field scanExp. No.

Experimental Session Group1357

TC
89Time Table

10Session Coordinator

H.Nakano[2209] / T.Tokuzawa[2217]
11U
P

12

13

14

15

16

17

18

1920

Gas

[TC](10:30 ～ 16:45) ECH, NBI
10:30-12:05 Validation of neutral beam current drive in LHD for numerical estimation (H. Nuga)
12:05-12:15 NBI calib. (3 shots)
12:15-12:30 [Change of Mag. Config.: 3.6m, 2.75T, 1.2538, 100% -> 3.6m, 1.375T, 1.1739, 100%]
12:30-16:45 Assessment of geometrical effect on transport through quadrupole field scan (H.
Yamada (U. Tokyo), N. Tamura)# [Change of Mag. Config.: 3.6m, 1.375T, 1.1739, 100% -> 3.6m, 1.375T, 1.2538, 0%] will be donearound 2 pm.
# Demagnetization will be done for the reversal of IS coil polarity.
Polarity
CCW
CCW
CCW

Rax(m)
3.6
3.6
3.6

Bax(T)
2.75
1.375
1.375

gamma
1.25381.17391.2538Bq(%)
100.0
100.00.0

Subcooled

Wall Conditioning

GD(Before Exp.): None , GD(After Exp.): None , Cryopump(During Exp.): on
Remarks(TC)Required Diag.: MSE, FIDA, CXS, PCI, Reflectometer【Precautions for today's LHD experiments】(id:738) Mag. Conf.: Exp. with low gamma (Combined)(id:744) Mag. Conf.: Bq = 0%, 150%, 200%
(id:752) NBI: Injection into the discharges with low fields

22

DN

[TC]

Details and Experimental Conditions

Sequence:3min#Option12321

H2

LHD projectPrepared byDaily Schedule

N.Kenmochi
T.TokuzawaN.Tamura

Date

Experimental Subject

2024/5/2(Thu)

Demonstration of real-time ECH plasma control by the data assimilation system ASTIInteraction between GAM and turbulence
Characteristics of millimeter wave vortex on heating, current drive, and propagationin high-density plasmas

Exp. No.

Experimental Session Group

Session Coordinator

1358

TC/IA

T.kobayashi[2231] / A.Shimizu[2454]
K.Ogawa[2229] / T.Kawate[2256]

89Time Table

10UP

11[TC]

12

13

14[IA]

15[TC]

1617

18

19

20

21

DN

Details and Experimental Conditions

Gas[TC](10:30 ～ 11:45) ECH, NBI
10:30-11:45 Demonstration of real-time ECH plasma control by the data assimilation system ASTI (S. Murakami (KyotoUniv.), N. Kenmochi)# NBI calib. (3 shots) will be done between 10:30-11:45.

H2,Ar

NBI pattern #7: (#1, #2, #3, #4, #5) - (#1, #2, #3, #5) - (#1, #2, #3) - (#2, #3)
Sequence:3min#Option
1Polarity
CW

Rax(m)
3.6

Bax(T)
2.75

gamma
1.2538

Bq(%)
100.0

Subcooled[IA](11:45 ～ 13:30) ECH, NBI
11:45-12:05 [Change of Mag. Config.: 3.6m, 2.75T -> 3.75m, 1.375T]
12:05-13:30 Interaction between GAM and turbulence (T. Tokuzawa)# [Change of Mag. Config. 3.75m, 1.375T -> 3.75m, 1.3T] will be done between 12:05 and 13:30.
Sequence:3min#Option
12

Polarity
CW
CW

Rax(m)
3.75
3.75

Bax(T)
1.375
1.3

gamma
1.25381.2538

Bq(%)
100.0
100.0

H2,Ar

Subcooled[TC](13:30 ～ 16:45) ECH, NBI
13:30-14:05 [Change of Mag. Config. 3.75m, 1.25T -> 3.6m, 2.75T]
14:05-15:17 Characteristics of millimeter wave vortex on heating, current drive, and propagation in high-density plasmas(S. Kubo (Chubu Univ.), M. Nishiura)
15:17-16:45 Demonstration of real-time ECH plasma control by the data assimilation system ASTI (S. Murakami (KyotoUniv.), N. Kenmochi)
Sequence:3min#Option1

Polarity
CW

Rax(m)
3.6

Bax(T)
2.75

gamma
1.2538

Bq(%)
100.0

Subcooled

Wall Conditioning

GD(Before Exp.): None , GD(After Exp.): None , Cryopump(During Exp.): onRemarks(TC)Realtime-TS, BS, C-CXS(Ti) with NBI#5(IA)HIBP, MSE, LID(cancel, 12:05-13:30)(TC)ECE, cECE, HIBP, realtime-TS, BS【Precautions for today's LHD experiments】(id:724) Impurity gas puff
(id:730) ECH: Overdense heating(id:731) Mag. Conf.: Using LID coil
(id:733) High plasma current exp. (100 kA =< Ip < 150kA) (Combined)(id:748) ECH: off-axis injection (Combined)(id:752) NBI: Injection into the discharges with low fields(id:757) ECH: Optical Vortex injection

22H2,Ar