Dec. 2005

• Thirty-four magnets, which are one third of all the magnets for the proton-beam transportation from 3GeV Synchrotron to Material and Life Science Facility, were placed to the tunnel of the transportation line. (Dec. 22, 2005)
• The design of the piping for the container of the Mercury target to be used in Material and Life Science Facility was studied, and we reached the goal in the He leak tests. (Dec. 22, 2005)
• We completed the construction of the decay pipe for generating nentrinos in Neutrino Facility. (Dec. 22, 2005)
• We made the apparatus to demonstrate the performance of the beam profile monitors in Hadron Experimental Facility. (Dec. 22, 2005)

Nov. 2005

• We started R&D works to reduce the pressure wave generated in the liquid mercury for the neutron source with the Magnetic IMpact Testing Machine(MIMTM). (Nov. 25, 2005)
• We developed the technique to use the concrete shield, which is located in the vacuum vessel to protect magnets in the Hadron Experimental Facility, packed in the aluminum container. (Nov. 25, 2005)
• The first bending magnet in the 50GeV Proton Synchrotron was transported to the accelerator tunnel and, on November 15, was placed to the floor by six 6 persons including the KEK Director Yoji Totsuka and the J-PARC Director Shoji Nagamiya. (Nov. 25, 2005)
• The 8th Symposium on Power Supply Technology for Accelerator (in Japanese) was held on Dec. 8(Thu) and 9(Fri). (Nov. 7, 2005)

Oct. 2005

• We started the installation of the Drift Tubes in the Linac tunnel. (Oct. 28, 2005)
• The coils using Mineral Insulator Cables (MICs), for the magnets in Hadron Experimental Hall, are being tested in vacuum by turning on the electricity. (Oct. 28, 2005)
• The apparatus to do the position adjustment of the electromagnetic horn system in Neutrino Facility is being developed. (Oct. 28, 2005)
• J-PARC Newsletter No.22 dispatch (Oct. 28, 2005)

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Aug. 2005

• J-PARC Newsletter No.21 dispatch (Aug. 17, 2005)
• Agreement between KEK and JAERI on the creation of the "J-PARC CENTER" was signed. (Aug. 8, 2005)

May. 2005

• J-PARC Newsletter No.20 dispatch (May. 16, 2005)
• The 3rd Mini-workshop on the K1.8/K1.1 secondary beamlines at the Hadron Experimental Facility was held at KEK on May 13(Fri) and 14(Sat).
• The 2nd meeting of the Neutrino Facility Technical Advisory Committee (nu-TAC) was held at KEK from April 26(Tue) to 28(Thu).
• The 3rd Meeting of Neutron Source Technical Advisory Committee was held on Oct. 26, 2004.
• Manufacturing of liners, helium vessel and supporting devices, the major components of the target station, are under progress at a vendor's factory.
• Thirty Letters of Intent (more than 400 physicists in total) for the experiments, beamlines etc at Nuclear and Particle Physics Facility were submitted from the world, and are available from this Web site.