@misc{oai:repo.qst.go.jp:00082230,
 author = {夏目祥揮 and Kajita, Shin and S. NEVEROV, Vladislav and I. KHUSNUTDINOV, Radmir and VESHCHEV, Evgeny and DE BOCK, Maarten and R. POLEVOI, Alexei and 田中宏彦 and OHNO, Noriyasu and Hiroaki, Ogawa and Shinichi, Kitazawa and Kajita, Shin and Hiroaki, Ogawa and Shinichi, Kitazawa},
 month = {Oct},
 note = {The computer tomography for divertor impurity monitor, which measures plasma emissions in the divertor region, for ITER has been conducted using a ray-tracing technique. We have attempted four different solution methods for the inversion problem and compared the results. The solution methods which minimize errors in logarithmic scale had better performance than the methods which minimize errors in linear scale. This is likely due to the fact that the values in the emission profile vary in a wide range of orders of magnitude. The accuracy of the reconstruction has been investigated by changing discharge conditions and the number of field-of-views used. The deterioration in accuracy was most noticeable when the emission profile was reconstructed using only two field-of-views. In addition, the accuracy deteriorated, making the estimation more challenging, under discharge conditions with low emission intensity because of the wider range of emission intensity under such conditions., The 29th International Toki Conference on Plasma and Fusion Research},
 title = {Computer tomography on divertor impurity monitor for ITER including wall reflection effects},
 year = {2020}
}