섬유

experimental approach to polarimetric density measurement on ft machine

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 258
an experimental study of plasma bi-refringence (cotton-mouton effect) in the ft plasma carried out by using an hcn laser (337 $mu$ m) is reported. the experiment is intended to test the feasibility of polarimetric plasma density measurements in high-toroidal-field tokamaks. the results show that for a plasma density of n//e $equals$ 10**1**4 cm**3 and a toroidal field of b//t $equals$ 8 t, the effect of plasma bi-refringence is very strong and corresponds to the theoretical expectation. the discrepancy between experimental and computed data is mainly due to refractive power losses of the hcn beam. 6 refs
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