The blocks have been removed from the west target station. The fields at the top of the target pit at the railing at waist level is about 80uSv/hr, Turbo pumps are about 805uSv/hr, backing lines for the turbos about a 1mSv/hr and the average field in the area of work down in the pit is about 600 to 750uSv/hr. The proton beam went off at 10:45 on December 2nd, these measurements were done at 09:00 on December 3rd.
Another set of field measurement was done at the west target station. At the top of the west target station at the railing the field ranged from 50 to 70 uSv/hr. The turbo pumps had field of about 650uSv/hr, the area over the dump was about 750uSv/hr, the area over the HV cover and the south side was about 450uSv/hr. These measurements were done at 13:15 on December 3rd. |