TF ripple loss of alpha particles in TFTR DT experiments

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Quantitative evaluation of TF ripple loss of DT alpha particles is a central issue for reactor design because of potentially severe first wall heat load problems. DT experiments on TFTR allow experimental measurements to be compared to modeling of the underlying alpha physics, with code validation an important goal. Modeling of TF ripple loss of alphas in TFTR now includes neoclassical calculations of alpha losses arising from first orbit loss, stochastic ripple diffusion, ripple trapping and collisional effects. Recent Hamiltonian coordinate guiding center code (ORBIT) simulations for TFTR have shown that collisions enhance the stochastic TF ripple losses at TFTR. ... continued below

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5 p.

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Redi, M.H.; Budny, R.V. & Darrow, D.S. August 1, 1995.

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Description

Quantitative evaluation of TF ripple loss of DT alpha particles is a central issue for reactor design because of potentially severe first wall heat load problems. DT experiments on TFTR allow experimental measurements to be compared to modeling of the underlying alpha physics, with code validation an important goal. Modeling of TF ripple loss of alphas in TFTR now includes neoclassical calculations of alpha losses arising from first orbit loss, stochastic ripple diffusion, ripple trapping and collisional effects. Recent Hamiltonian coordinate guiding center code (ORBIT) simulations for TFTR have shown that collisions enhance the stochastic TF ripple losses at TFTR. A faster way to simulate experiment has been developed and is discussed here which uses a simple stochastic domain model for TF ripple loss within the TRANSP analysis code.

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5 p.

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INIS; OSTI as DE96007489

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  • Other Information: PBD: Aug 1995

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  • Other: DE96007489
  • Report No.: PPPL--3139
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/206583 | External Link
  • Office of Scientific & Technical Information Report Number: 206583
  • Archival Resource Key: ark:/67531/metadc668574

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  • August 1, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 15, 2016, 7:10 p.m.

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Redi, M.H.; Budny, R.V. & Darrow, D.S. TF ripple loss of alpha particles in TFTR DT experiments, report, August 1, 1995; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc668574/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.