arXiv:2201.04346v1 [physics.ins-det] 12 Jan 2022 Prepared for submission to JINST December 27th, 2021 A Novel Nuclear Emulsion Detector for Measurement of Quantum States of Ultracold Neutrons in the Earth’s Gravitational Field Naoto Muto 1 Hartmut Abele 2 Tomoko Ariga 3 Joachim Bosina 2,4 Masahiro Hino 5 Katsuya Hirota 1,6 Go Ichikawa 6,7 Tobias Jenke 4 Hiroaki Kawahara 1 Shinsuke Kawasaki 6 Masaaki Kitaguchi 1,8 Jakob Micko 2,4 Kenji Mishima 6,7 Naotaka Naganawa 1,9 Mitsuhiro Nakamura 1,8,9 Stéphanie Roccia 4 Osamu Sato 1,9 René I. P. Sedmik 2 Yoshichika Seki 10 Hirohiko M. Shimizu 1,6 Satomi Tada 1 Atsuhiro Umemoto 1,11 1 Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan; muto@flab.phys.nagoya-u.ac.jp, hirota@phi.phys.nagoya-u.ac.jp,kawahara@flab.phys.nagoya-u.ac.jp,kitaguchi@phi.phys.nagoya-u.ac.jp, naganawa@flab.phys.nagoya-u.ac.jp,nakamura@flab.phys.nagoya-u.ac.jp,sato@flab.phys.nagoya-u.ac.jp, shimizu@phi.phys.nagoya-u.ac.jp, tada@flab.phys.nagoya-u.ac.jp 2 Atominstitut, Technische Universität Wien, Stadionallee 2, 1020 Vienna, Austria; hartmut.abele@tuwien.ac.at, joachim.bosina@tuwien.ac.at, rene.sedmik@tuwien.ac.at 3 Kyushu University, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan; tomoko.ariga@cern.ch 4 Institut Laue-Langevin, 71 avenue des Martyrs CS 20156, 38042 GRENOBLE Cedex 9, France; jenke@ill.fr, micko@ill.fr, roccia@ill.fr 5 Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka, 590-0494, Japan; hino.masahiro.2x@kyoto-u.ac.jp 6 High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, 305-0801,Japan; go.ichikawa@kek.jp,shinsuke.kawasaki@kek.jp,kenji.mishima@kek.jp 7 Japan Proton Accelerator Research Complex (J-PARC) Center, Tokai, Ibaraki, 319-1195, Japan 8 Kobayashi-Maskawa Institute for Origin of Particles and the Universe (KMI), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan 9 Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan 10 Center for Physics and Mathematics, Osaka Electro-Communication University, Neyagawa, Osaka 572-8530, Japan; seki@osakac.ac.jp 11 Division of Physics, University of Tsukuba, Tennodai, Tsukuba 305-8571, Japan; umemoto.atsuhiro.gu@u.tsukuba.ac.jp E-mail: muto@flab.phys.nagoya-u.ac.jp