A Japan-U.S. joint research organization opened one of its radiation research facilities in Hiroshima to the public Monday to raise awareness of the effects of radiation on human health, ahead of the anniversary on Tuesday of the atomic bombing of the city.

Although the Hiroshima facility will only be open to the public for two days, the Radiation Effects Research Foundation will open another research facility in the city of Nagasaki on Thursday and Friday to coincide with the city's Aug. 9 A-bomb anniversary.

This marks the 25th annual public opening of the facility in Minami Ward, Hiroshima. It aims to share research content and help the public better understand the health effects of radiation. The research facility has been collecting data from hibakusha since the institute was established in 1975, when it succeeded the research efforts of its predecessor, the Atomic Bomb Casualty Commission.

Some of the exhibition booths explain the risks of radiation, as well as the role of blood. Visitors can also experiment with freezing cells in liquid nitrogen for preservation, which tends to be popular with children when the experiment is successful.

"The (facility was) full of things I didn't know were there, like health research on second generation hibakusha. Even as a Hiroshima resident, I learned a lot," said Sanae Yamamoto, a 41-year-old housewife from Asakita Ward in the city who visited the facility with her children.