TJ-II:Magnetic surface mapping: Difference between revisions

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After [[TJ-II:Construction|construction]] of [[TJ-II]] was completed, the accuracy of the magnetic field was checked by measuring the vacuum flux surface mapping and comparing to theoretical predictions.  
After [[TJ-II:Construction|construction]] of [[TJ-II]] was completed, the accuracy of the magnetic field was checked by measuring the vacuum flux surface mapping and comparing to theoretical predictions.  
The mapping was done at a magnetic field strength of 10% of the nominal value.
The mapping was done at a magnetic field strength of 10% of the nominal value.
The detection process involved imaging the spots produced by electrons, emitted from an electron gun, when these intersected an array of fluorescent rods that swept the vacuum vessel cross section.  
The detection process involved imaging  
<ref>[http://dx.doi.org/10.1109/23.486038 J. Marin et al, '' Real time image integrator for magnetic surface mapping experimentsin TJ-I U torsatron'', IEEE Trans. Nucl. Science '''43''', 1 (1996) 234]</ref>
the spots produced by electrons, emitted from an electron gun, when these intersected an array of fluorescent rods that swept the vacuum vessel cross section.  
<ref>[http://www.jspf.or.jp/JPFRS/PDF/Vol1/jpfrs1998_01-183.pdf E. Ascasibar et al, ''Magnetic surface mapping experiments in TJ-II Heliac'', J. Plasma Fusion Res. SERIES '''1''' (1998) 183]</ref>
<ref>[http://www.jspf.or.jp/JPFRS/PDF/Vol1/jpfrs1998_01-183.pdf E. Ascasibar et al, ''Magnetic surface mapping experiments in TJ-II Heliac'', J. Plasma Fusion Res. SERIES '''1''' (1998) 183]</ref>
The agreement was found to be good.
The agreement was found to be good.