@article{oai:jaxa.repo.nii.ac.jp:00032958, author = {中川, 道夫 and 山内, 誠 and 折戸, 正紀 and 内田, 正美 and 桜井, 敬久 and 平山, 秀也 and NAKAGAWA, M. and YAMAUCHI, M. and ORITO, M. and UCHIDA, M. and SAKURAI, H. and HIRAYAMA, H.}, journal = {宇宙科学研究所報告. 特集: 大気球研究報告}, month = {Oct}, note = {We made two types of detector to observe the cyclotron emission line emitted by strong magnetic field around Her X-1. One is a single wire Xe gas proportional counter with field adjusting ring, the other is a NaI scintillation counter with a thin PR gas proportional counter on its window. To observe the emission line, it is necessary to reduce the background event below 8.3×10^<-2> photons/cm^2・sec. We had achived it with both counters in the energy range of 30-90 KeV by balloon experiment., 資料番号: SA0166777000}, pages = {41--82}, title = {Her X-1 観測用新型硬 X 線検出器}, volume = {17}, year = {1986} }