Test of the telegraph equation for transport dynamics in plasma

Shigeru Inagaki, Kimitaka Itoh, Sanae I. Itoh, Yusuke Kosuga, Maxime Lesur, Naohiro Kasuya

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We have tested the telegraph equation for transport dynamics in magnetized plasma by comparing its resultswith experimental observations in the Large Helical Device [S. Inagaki et al., Nucl. Fusion 53, 113006 (2013)]. The telegraph equation includes a finite relaxation time for turbulence intensity in response to the changes in global plasma parameters. This model was applied to nondiffusive radial heat pulse propagation under the periodic modulation of the heating power. The model showed some success in reproducing the amplitudes of higher harmonics. However, the phase relation between the temperature gradient and heat flux was opposite to that in experimental observations.

Original languageEnglish
Article number1203002
Pages (from-to)1-2
Number of pages2
JournalPlasma and Fusion Research
Issue number2015
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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