On December 22, 2011, the 3-GeV proton beam transport facility (3NBT) successfully transported the 3-GeV proton beam ejected from the 3-GeV Rapid Cycling Synchrotron (RCS) to the neutron production target in the Materials and Life Science Experimental Facility (MLF) through the beam study operation which began on December 9, 2011 in J-PARC. We also confirmed that the intensity of neutrons extracted to the neutron instruments is equivalent to that obtained before The Great East Japan Earthquake occurred. Further beam study will be continued for the beam delivery for the user experiments at MLF which is scheduled to resume from January 24, 2012.
Proton beam profile delivered to the neutron production target in the Materials and Life Science experimental Facility, which was measured by the beam monitor at the proton beam window in the first beam study operation after The Great East Japan Earthquake.