Kashiwa, about 30 km northeast of Tokyo, is known for its humble beginnings as a 1970s bedroom community for Tokyo workers.

The tranquil residential city of 406,000 in Chiba Prefecture rarely enters the national spotlight, except when Kashiwa Reysol, the local soccer team, is playing at home.

But on a street just six minutes from JR Kashiwa Station, the Bec-Miru facility that Motohiro Takamatsu opened in October is turning heads by offering residents a chance to scan their own groceries, garden soil and other items for radiation.