"NIMS Open House 2011" was held for two days on June 30th and July 3rd, 2011. The purpose of the open house is to make NIMS's world-renowned facilities widely be known to the public. MANA's research facilities at Namiki Site were put on view to the general public as a one of the research division of NIMS on June 30th, 2011. MANA's researcher demonstrated their research facilities and showed their research results for visitors. We would like to sincerely thank everybody who visited MANA on June 30 , 2011.