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Title: Observation and analysis of pellet material del B drift on MAST

Abstract

Pellet material deposited in a tokamak plasma experiences a drift towards the low field side of the torus induced by the magnetic field gradient. Plasma fuelling in ITER relies on the beneficial effect of this drift to increase the pellet deposition depth and fuelling efficiency. It is therefore important to analyse this phenomenon in present machines to improve the understanding of the del B induced drift and the accuracy of the predictions for ITER. This paper presents a detailed analysis of pellet material drift in MAST pellet injection experiments based on the unique diagnostic capabilities available on this machine and compares the observations with predictions of state-of-the-art ablation and deposition codes.

Authors:
 [1];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [1];  [4];  [1];  [1];  [1];  [1];  [1]
  1. EURATOM, Culham Sci Ctr, Abingdon, Oxon England
  2. ORNL
  3. Austrian Academy of Sciences, Vienna, Austria
  4. CEA Cadarache, St. Paul lex Durance, France
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1056904
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 50; Journal Issue: 10; Journal ID: ISSN 0029--5515
Country of Publication:
United States
Language:
English

Citation Formats

Garzotti, L, Baylor, Larry R, Kochi, F, Pegourie, B, Valovic, M, Axon, K B, Dowling, J, Guri, C, Maddison, G P, Nehme, H, O'Gorman, T, Patel, A, Price, M, Scannell, R, and Walsh, M. Observation and analysis of pellet material del B drift on MAST. United States: N. p., 2010. Web. doi:10.1088/0029-5515/50/10/105002.
Garzotti, L, Baylor, Larry R, Kochi, F, Pegourie, B, Valovic, M, Axon, K B, Dowling, J, Guri, C, Maddison, G P, Nehme, H, O'Gorman, T, Patel, A, Price, M, Scannell, R, & Walsh, M. Observation and analysis of pellet material del B drift on MAST. United States. https://doi.org/10.1088/0029-5515/50/10/105002
Garzotti, L, Baylor, Larry R, Kochi, F, Pegourie, B, Valovic, M, Axon, K B, Dowling, J, Guri, C, Maddison, G P, Nehme, H, O'Gorman, T, Patel, A, Price, M, Scannell, R, and Walsh, M. 2010. "Observation and analysis of pellet material del B drift on MAST". United States. https://doi.org/10.1088/0029-5515/50/10/105002.
@article{osti_1056904,
title = {Observation and analysis of pellet material del B drift on MAST},
author = {Garzotti, L and Baylor, Larry R and Kochi, F and Pegourie, B and Valovic, M and Axon, K B and Dowling, J and Guri, C and Maddison, G P and Nehme, H and O'Gorman, T and Patel, A and Price, M and Scannell, R and Walsh, M},
abstractNote = {Pellet material deposited in a tokamak plasma experiences a drift towards the low field side of the torus induced by the magnetic field gradient. Plasma fuelling in ITER relies on the beneficial effect of this drift to increase the pellet deposition depth and fuelling efficiency. It is therefore important to analyse this phenomenon in present machines to improve the understanding of the del B induced drift and the accuracy of the predictions for ITER. This paper presents a detailed analysis of pellet material drift in MAST pellet injection experiments based on the unique diagnostic capabilities available on this machine and compares the observations with predictions of state-of-the-art ablation and deposition codes.},
doi = {10.1088/0029-5515/50/10/105002},
url = {https://www.osti.gov/biblio/1056904}, journal = {Nuclear Fusion},
issn = {0029--5515},
number = 10,
volume = 50,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}