Remote inspection with multi-copters, radiological sensors and SLAM techniques Henrique Carvalho, Alberto Vale, Rúben Marques, Rodrigo Ventura, Yoeri Brouwer and Bruno Gonçalves EPJ Web Conf., 170 (2018) 07014 Published online: 10 January 2018 DOI: 10.1051/epjconf/201817007014