@article{oai:repo.qst.go.jp:00049596, author = {和田, 健 and Shirasawa, T. and Mochizuki, I. and Fujinami, M. and Takahashi, T. and 前川, 雅樹 and 河裾, 厚男 and Kimura, M. and Hyodo, T. and 和田 健 and 前川 雅樹 and 河裾 厚男}, journal = {JJAP Conference Proceedings}, month = {Feb}, note = {A low-energy positron diffraction (LEPD) experiment station was developed at the Slow Positron Facility, High Energy Accelerator Research Organization (KEK). An electron-accelerator-based slow-positron beam with an energy of 5 keV was magnetically transported and focused on a transmission-type Ni remoderator to achieve a 50 – 500 eV brightness-enhanced beam in a non-magnetic space. A LEPD detector with center holed retarding meshes, Chevron-type microchannel plates, and a delay-line detector (DLD) was installed. A newly developed pulse stretching system was used to stretch the initial positron-pulse width of 1.2-μs to 200 μs - 20 ms to avoid multiple hit events within the position analysis time of the DLD.}, pages = {011301-1--011301-6}, title = {Progress report on construction of a low-energy positron diffraction (LEPD) experiment station at KEK}, volume = {7}, year = {2019} }