@article{oai:nipr.repo.nii.ac.jp:00001421,
 author = {Minami, Shigeyuki and Tsutsumi, Shiro and Takeya, Yoshio},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Mar},
 note = {P(論文), We have been measuring the ion temperature by means of a retarding potential analyzer (RPA) aboard the sounding rocket whose velocity is comparable to the ion thermal velocity. In order to determine the ion temperature T_i from the RPA data, an optimum fitting procedure is used. It was believed that the deduction of T_i at low ram velocity by computer methods without assumption of ion mass number was impossible. This paper deals with an improved accurate fitting procedure to obtain T_i and mixed ion mass number. We advocate the usefulness of the improved error evaluation function. We also show the actual data analysis procedure.},
 pages = {180--192},
 title = {A method of ion temperature determination with retar ding potential analyzer by computer},
 volume = {26},
 year = {1983}
}