Upgrade of JCNS SANS instrument KWS-2 for improved performance and beam-time efficiency Aurel Radulescu, Jia-Jhen Kang, Marie-Sousai Appavou and Aristeidis Papagiannopoulos EPJ Web Conf., 286 (2023) 03006 Published online: 09 October 2023 DOI: 10.1051/epjconf/202328603006