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Title: Pellet Injection Technology and Application to Mitigate Transient Events on ITER

Abstract

The technology to form and accelerate cryogenically solidified pellets of hydrogen isotopes has long been under development for fueling fusion plasmas. Injectors are being designed to provide this capability for fueling ITER with DT pellets injected from the inner wall. In addition to this fueling application, the pellet technology is being further developed for ITER to mitigate transient heat fluxes and energetic particle impacts from disruptions and edge localized modes (ELMs). Large shattered impurity pellets have been found to effectively mitigate disruptions and small pellets of deuterium have been used to trigger on demand rapid small ELMs to limit the transient heat flux damage from otherwise large naturally occurring ELMs. Both of these technologies are being implemented for ITER.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [2]
  1. ORNL
  2. ITER Organization, Cadarache, France
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1460242
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: IAEA Fusion Energy Conference (FEC 2016) - Kyoto, , Japan - 10/17/2016 4:00:00 AM-10/22/2016 4:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Baylor, Larry R., Combs, Stephen Kirk, Duckworth, Robert C., Lyttle, Mark S., Meitner, Steven J., Rasmussen, David A., and Maruyama, So. Pellet Injection Technology and Application to Mitigate Transient Events on ITER. United States: N. p., 2016. Web.
Baylor, Larry R., Combs, Stephen Kirk, Duckworth, Robert C., Lyttle, Mark S., Meitner, Steven J., Rasmussen, David A., & Maruyama, So. Pellet Injection Technology and Application to Mitigate Transient Events on ITER. United States.
Baylor, Larry R., Combs, Stephen Kirk, Duckworth, Robert C., Lyttle, Mark S., Meitner, Steven J., Rasmussen, David A., and Maruyama, So. Thu . "Pellet Injection Technology and Application to Mitigate Transient Events on ITER". United States. doi:. https://www.osti.gov/servlets/purl/1460242.
@article{osti_1460242,
title = {Pellet Injection Technology and Application to Mitigate Transient Events on ITER},
author = {Baylor, Larry R. and Combs, Stephen Kirk and Duckworth, Robert C. and Lyttle, Mark S. and Meitner, Steven J. and Rasmussen, David A. and Maruyama, So},
abstractNote = {The technology to form and accelerate cryogenically solidified pellets of hydrogen isotopes has long been under development for fueling fusion plasmas. Injectors are being designed to provide this capability for fueling ITER with DT pellets injected from the inner wall. In addition to this fueling application, the pellet technology is being further developed for ITER to mitigate transient heat fluxes and energetic particle impacts from disruptions and edge localized modes (ELMs). Large shattered impurity pellets have been found to effectively mitigate disruptions and small pellets of deuterium have been used to trigger on demand rapid small ELMs to limit the transient heat flux damage from otherwise large naturally occurring ELMs. Both of these technologies are being implemented for ITER.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 2016},
month = {Thu Sep 01 00:00:00 EDT 2016}
}

Conference:
Other availability
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