mixed field of neutrons and muons) -<} From Alcove 2~4 -<} Measurement of muon attenuation in rock (continued) -<} Measurement of nuclide production by muons (continued) -<} Measurement of muon and secondary paIiicIe spatial distribution (continued) 5 4. SCHEDULES (Apr. 2009 - Oct. 2009 and Nov. 2009 - Mar. 2012) Experimental schedules between April 2009 and March 2012 are shown in Table 1, which includes Japanese visitor schedules and Pbar & NuMI access requests. TIle first work in 2009 is to apply for machine time at the Meson Test Beam Facility. That work is outlined in a separate MOU - T994. The application process will start as soon as possible to obtain the machine time for at least one week in February, 2010. During the summer 2009 shutdown period, tlle Japanese collaborators visited to set new samples in the NuMI alcove and to remove and analyze the old samples installed last year. They will visit again for 3~4 weeks in the winter, including the MTest machine time. During the stay, the experimenters will access the NuMI alcove to remove the samples and put dosimeters when a natural beam downtime occurs. In addition to the gas analysis which was carried out so far using the gas sampling system in Pbar, a test analysis of cooling water of the Pbar devices will be started. The access to the Pbar target station is not required because the experimenters do not plan the foil activation in Pbar in this year. In 2010 or later, the experimenters plan the foil activation in the steel shield at a position downstream from the Pbar target and in the concrete shield. For the experiment, preparation of a new filler plate and the special concrete block into which activation foils can be installed will be started in