@article{oai:niigata-u.repo.nii.ac.jp:00002592, author = {Numakura, T. and Cho, T. and Kohagura, J. and Hirata, M. and Minami, R. and Miyata, Y. and Tomii, Y. and Miyake, Y. and Kiminami, S. and Shimizu, K. and Morimoto, N. and Itou, M. and Imai, T. and Miyoshi, S. and Ogura, K.}, issue = {10}, journal = {Review of Scientific Instruments, Review of Scientific Instruments}, month = {Oct}, note = {Our proposed “matrix-type” semiconductor detectors are applied for studying the local energy balance of bulk electrons in the tandem-mirror GAMMA 10. The matrix-type detector array consists of compactly produced six “rows” having different thicknesses of thin dead layers (SiO2) on its surface. Each row has seven channel units (“columns”) for measuring radiation profiles in the radial direction of plasmas. These various SiO2 layers are, thus, employed as “unbreakable ultrathin radiation-absorption filters” having various thicknesses to distinguish x rays from charge-exchange neutral particles and analyze the radial profiles of both plasma ion and electron temperatures simultaneously. The radial profiles of the energy confinement time and the thermal diffusivity obtained from the local energy balance analysis imply that the improvement of the plasma confinement is associated with the strong shear of radial electric fields due to a high plasma confining potentials.}, pages = {10F302-1--10F302-3}, title = {Experimental estimation of the local energy balance of the potential-confining electrons in tandem-mirror plasmas}, volume = {77}, year = {2006} }