Bob: Here are my thoughts on the cable checkout/installation at the mine. I see getting to the point where the installation is in the hands of the mine crew as taking place in four stages - this closely maps to Dave's pert chart. These are .... 1: Staging of test equipment at the mine, verifying that it arrives OK, and getting the 'lay of the land' 2: Final preparations - immediately prior to plane 1 assembly. 3: Installation of first ~3 planes by 'experts' - no mine crew training. 4: Training of mine crew to take over the job, extending roughly for the first 32 planes. Next, for each of these stages, we will attempt to make a plan.... Stage 1: Time Frame: Last week of Feb. 1 man-week On Site Personnel: Art Cohee Average Manpower @ Soudan - 1 FTE We are here trying to accomplish two things. First, get the equipment we think we need to the mine. This includes.. 1: Light leak hardware. (MUX box, HV, discriminator, rate meter, light source, oscilloscope) 2: Transmission test station. We should also have a kit for making simple repairs there (ie, replacing a shroud set...) The second thing you are trying to accomplish at this point is getting some idea of the work environment, so that problems can be anticipated when its time for the real thing. Given that this takes place in Feb, I don't know how accurate that appraisal will be at that early stage, but Art will get some idea of what we are in for, hopefully. After setting things up, Art would run through a set of checks of a set of test cables, verifying the test setup functionality. Stage 2: Time Frame: last week of May .. 2 man-weeks Personnel: Art Cohee, Mark Gebhard Average Manpower @ Soudan: 2 FTE Here we are going to move equipment down to the experimental hall, recheck it, get set up for the long haul, and repeat our transmission and light leak tests on the plane 1 to 3 cables, which were measured initially at the home lab. This is basically a final check that we are ready to start installation. Stage 3: Time Frame: I assume 1 plane/week at the start, for 3 planes = 3 weeks duration. Personnel: Art Cohee, Mark Gebhard, Jim Musser Average Manpower @ Soudan: 1.3 FTE The main tasks here are establishing in detail the installation and and test procedures, along with the on-site scintillation module experts. I assume that no training will be done during this very early stage, as my experience is that having people look over your shoulders while you are figuring out exactly how you want to do things is not pleasant. Although things may change to accomodate module testing, etc, my first crack at a bottoms up installation/test plan follows 1: After a module is mounted, clean module connector, apply RTV to joint and attach cable. 2: Attach temporary light seal to one cable end, and attach other cable end to light leak checker. 3: Perform light leak check to module/cable assembly. 4: Remove temporary light seal to cable end, and attach transmission test light source connector. Remove cable from light leak checker, and attach to transmission light detector connector. 5: Perform transmission test. 6: Safe cables for lifting. After the plane is lifted the assembly/testing tasks are... 1: routed safed cable ends to mux box. 2: attach to MUX box, applying RTV sealant to joint. 3: test MUX box/cable connection for light leaks. During this period, one of the three people above should be present at the mine at any given time. There needs to be some overlap, so that knowledge can be transmitted to the new arrivals, but I would want to have the flexibility of spelling people, in particular Art, who will also have duties back at the factory. Stage 4: Time Frame: June 20 -Aug 30, assuming 2 days/plane during this period. Personnel: Art Cohee, Mark Gebhard., Joe Carrierre, Jim Musser Average Manpower at Soudan: 1 FTE During this period, the primary task will be training in mine crew to take over testing/installation jobs, during the course of normal plane installation. I assume that one would like to see the training period carried through the completion of one MUX rack worth of planes. Subsequent installation should then follow closely the experience to that point - there shouldn't be suprises by that time. I have included the help of an IU graduate student at this point - classes are out, making it possible for the first time for him to participate at the mine. The total amount of time spent at the mine by these guys during this period will depend on how the training goes, and I imagine that as time goes one could get by with periodic visits of the senior techs, rather than having someone there full time. Joe could spend more time there, and help with other installation jobs as needed. Bob, let me know if you have an questions/comments on this. Of course, all dates float with Benficial Occupancy, and the some of the planning is continguent on being consistent with the plans of others, but it is at least a shot at it. Regards Jim