TJ-II:Experimental proposals

TJ-II Model

Creation of a new proposal

PLEASE READ these brief instructions!!!

1. Log in to the FusionWiki. If you don't have an account, request one by clicking 'Create account' in the left-hand menu.
2. Type the name of your proposal page in the field below. The required format is: 'TJ-II:Title of my proposal' (without the apostrophes). Note the 'TJ-II:' at the beginning!
3. Click 'Create new proposal'. Your proposal page will be created. Edit and save (please use 'Show preview' before saving the final version).

Your proposal will automatically be included in the lists below (provided you don't delete the relevant lines at the end of your proposal). You may need to reload this page to update the lists.

Experimental campaign =

2018 Spring

Proposal title

Studies of LIquid Metal Insertion in TJ-II

= Name and affiliation of proponent

Paco Tabares, Eider Oyarzabal, David Tafalla

Details of contact person at LNF (if applicable)

Paco Tabares

Description of the activity, including motivation/objectives and experience of the proponent (typically one-two pages)

Continuation of previous experiments: Insertion of Sn, LiSn and Li fingers in CPS support

If applicable, International or National funding project or entity

1P120 MINECO, TF LMD EuroFusion

Description of required resources

Required resources:

• Number of plasma discharges or days of operation:
• Essential diagnostic systems:
• Type of plasmas (heating configuration):
• Specific requirements on wall conditioning if any:
• External users: need a local computer account for data access: yes/no
• Any external equipment to be integrated? Provide description and integration needs:

Biasing Power source ad Control

Preferred dates and degree of flexibility

10-03-2018 to 05-06-2018

References

F L Tabares et al. Experimental tests of LiSn alloys as potential liquid metal for the Divertor target in a Fusion Reactor. Nucl Mat Ene. (2017) in press

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F L Tabares et al Comparative studies of Li and LiSn…. Phys Scripta 2017 (in press) Back to list of experimental proposals

Experimental campaign =

2018 Spring

Proposal title

Studies of LIquid Metal Insertion in TJ-II

= Name and affiliation of proponent

Paco Tabares, Eider Oyarzabal, David Tafalla

Details of contact person at LNF (if applicable)

Paco Tabares

Description of the activity, including motivation/objectives and experience of the proponent (typically one-two pages)

Continuation of previous experiments: Insertion of Sn, LiSn and Li fingers in CPS support

If applicable, International or National funding project or entity

1P120 MINECO, TF LMD EuroFusion

Description of required resources

Required resources:

• Number of plasma discharges or days of operation:
• Essential diagnostic systems:
• Type of plasmas (heating configuration):
• Specific requirements on wall conditioning if any:
• External users: need a local computer account for data access: yes/no
• Any external equipment to be integrated? Provide description and integration needs:

Biasing Power source ad Control

Preferred dates and degree of flexibility

10-03-2018 to 05-06-2018

References

F L Tabares et al. Experimental tests of LiSn alloys as potential liquid metal for the Divertor target in a Fusion Reactor. Nucl Mat Ene. (2017) in press

---

F L Tabares et al Comparative studies of Li and LiSn…. Phys Scripta 2017 (in press) Back to list of experimental proposals

Experimental campaign

2018 Spring

Proposal title

Studies of LIquid Metal Insertion in TJ-II

= Name and affiliation of proponent

Paco Tabares, Eider Oyarzabal, David Tafalla

Details of contact person at LNF (if applicable)

Paco Tabares

Description of the activity, including motivation/objectives and experience of the proponent (typically one-two pages)

Continuation of previous experiments: Insertion of Sn, LiSn and Li fingers in CPS support

If applicable, International or National funding project or entity

1P120 MINECO, TF LMD EuroFusion

Description of required resources

Required resources:

• Number of plasma discharges or days of operation:
• Essential diagnostic systems:
• Type of plasmas (heating configuration):
• Specific requirements on wall conditioning if any:
• External users: need a local computer account for data access: yes/no
• Any external equipment to be integrated? Provide description and integration needs:

Biasing Power source ad Control

Preferred dates and degree of flexibility

5-11-2019 to 20-12-2019

References

F L Tabares et al. Experimental tests of LiSn alloys as potential liquid metal for the Divertor target in a Fusion Reactor. Nucl Mat Ene. (2017) in press

---

F L Tabares et al Comparative studies of Li and LiSn…. Phys Scripta 2017 (in press) Back to list of experimental proposals

Experimental proposals, Spring 2018

Deadline: March 7, 2018

1. TJ-II:Observation of suprathermal ions with Neutral Particle Analyzers during electron cyclotron heating in the TJ-II stellarator
2. TJ-II:Poloidal 2D scans to investigate potential and density profiles in the TJ-II stellarator using dual Heavy ion beam probe diagnostic
3. TJ-II:Validation of bootstrap predictions
4. TJ-II:Transport analysis by means of the Transfer Entropy
5. TJ-II:Understanding an often observed transient rise in core electron temperature during pellet injection into TJ-II plasmas
6. TJ-II:Improving fuelling efficiency in TJ-II ECRH plasmas
7. TJ-II:The influence of a core fast electron population on pellet fuelling efficiency in TJ-II
8. TJ-II:Studies of LIquid Metal insertion in TJ-II
9. TJ-II:Fast Camera studies with triple bundle
10. TJ-II:Turbulence and radial electric field asymmetries in high iota magnetic configuration measured by Doppler reflectometry
11. TJ-II:Influence of electron / ion root and ion mass on the radial and frequency structure of zonal flows in TJ-II
12. TJ-II:Blobs vs streamers
13. TJ-II:Investigation of the ECRH power level and deposition radius on impurity confinement after injection by laser blow-off in TJ-II
14. TJ-II:Evaluation of Neoclassical transport correction terms in TJ-II
15. TJ-II:Turbulence studies during transient pellet induced regimes
16. TJ-II:Infrared thermography of the NBI Beam Stop: NBI contribution to plasma fuelling
17. TJ-II:Dependence of NBI-driven Alfvén Eigenmodes on NBI energy and power
18. TJ-II:ECRH system calibration
19. TJ-II: Radiation asymmetries and potential variations

Experimental proposals, Spring 2017

Deadline: January 26, 2017

1. TJ-II:Search for physical mechanisms that lead to increase of turbulence following pellet injection
2. TJ-II:Effect of pellet injection on the radial electric field profile of stellarators
3. TJ-II:Excitation of zonal flow oscillations by energetic particles
4. TJ-II:Radial electric field of low-magnetic-field low-collisionality NBI plasmas
5. TJ-II:Comparison of transport of on-axis and off-axis ECH-heated plasmas
6. TJ-II:Impurity injection by laser blow-off: influence of main ions charge/mass on impurity confinement and transport
7. TJ-II:PelletFuelling
8. TJ-II:Impurity density and potential asymmetries
9. TJ-II:Investigation of turbulence spreading and information transfer in the TJ-II stellarator
10. TJ-II:Role of isotope effect on biasing induced transitions in the TJ-II stellarator
11. TJ-II:Investigation of the mechanism of decoupling between energy and particle transport channels: Proposal for joint experiments in TJ-II and H-J
12. TJ-II:Alfven Eigenmodes and biasing in TJ-II
13. TJ-II:Potential asymmetries at low magnetic field
14. TJ-II:NBI contribution to plasma fuelling
15. TJ-II:Investigation of plasma asymmetries in the TJ-II stellarator and comparison with Gyrokinetic simulations
16. TJ-II:Effect of ECRH on the characteristics of Alfven Eigenmodes activity
17. TJ-II:Investigating the Alfvén Wave damping
18. TJ-II:L-H Transition and Isotope Effect in low magnetic ripple configurations
19. TJ-II:Measurements of radial correlation length and tilting of turbulent eddies by Radial Correlation Doppler Reflectometry
20. TJ-II:Measurement of Te and ne of Blobs analyzing recycling helium emission in front of a poloidal limiter
21. TJ-II:Potential Assymetries at low magnetic field

See also

• TJ-II:Experimental program (not yet in use)
• Experimental programs for earlier years (2002-2017) (Intranet, password required)
• A new proposal page is created on the basis of this Proposal template. You do not need to view or modify it. Note for administrators: at the end of the template, the category of the proposal is specified (e.g, 'Autumn 2018'), which will determine to which list of proposals the proposal belongs.