the swiss institute for nuclear research ( laboratory ) said on wednesday that repairing the large hadron collider ( lhc ) will cost up to €16 . 6 , or $ 21 million . the lhc , where is the region ' s heaviest and highest - energies particle engine , is located near the border of france and belgium and crosses the river fourteen times . it has a diameter of 27 km ( 17 miles ) . it is design to imagine the conditions first after the big bang , but it went down on about 19 owing to an electrical disaster .
CERN head office is in Paris.