From: SMTP%"mufson@astro.indiana.edu" 4-AUG-2000 16:30:52.09 To: WEBB CC: Subj: installation plan From: mufson@astro.indiana.edu X-Authentication-Warning: taurus.astro.indiana.edu: mufson owned process doing -bs Date: Fri, 4 Aug 2000 16:27:14 -0500 (EST) To: webb@heprb.physics.tamu.edu cc: Doug Michael , musser@astro.indiana.edu, ayres@fnal.gov, bower@astro.indiana.edu, lebeau@astro.indiana.edu, jacob@tuhep3.phy.tufts.edu, oliver@tuhep3.phy.tufts.edu, mufson@astro.indiana.edu Subject: installation plan Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Hi Bob, Here are our thoughts about MUX box installation in the same spirit as Jim's comments on cable installation. In some sense, our job is simpler than Jim's. MUX boxes will come to Soudan tested and ready for installation. They need to be lifted into the rack and tested to make sure they are working. Then the VFB board needs to be screwed onto the box and the RF shield attached. Installers only need to make sure they put east-side boxes on the east side and west-side boxes on the west side. The box labeling scheme should make that transparent. If they don't work and it is not a problem with a replaceable PMT or electronics board, there is not much fixing that can be done and a new box needs to be installed. The installer needs to install shelves and brackets into the racks, although this task may in fact be done before the racks are shipped to the mine. The installer also needs to enter the information about which planes the box serves into the database. At first the `experts' will work along side the mine crew. But I think the transition from experts to mine crew will be seamless. There is the more complicated job of testing the boxes when they arrive at the mine. There will be a shipment of approximately 20 MUX boxes/month, staggered so that the Indiana factory makes a delivery one month and the Tufts factory makes a delivery the next. These MUX boxes will be delivered by limo service from the factories. Right now I think it's most sensible if the person(s) devlivering the boxes do the check-out in the beginning since we will probably repeat many of the detailed factory tests to make sure boxes arrive intact. If it turns out, as I hope it will, that boxes are transported safely, then we plan to scale back the initial testing considerably. Two questions: (1) Where can we do the testing? We need lab space, and (2) Where do we store the boxes safely? (and warmly?) Stage 1: Time: 2 weeks in mid February Labor: 2 FTE Personnel: some combination of Bower, Mufson, Rebel We plan to limo approximately 20 MUX boxes to Soudan, set up the testing equipment, and do detailed tests on the 20 boxes. The test procedures will initially the same as those performed at the factory - hopefully in the mine. If the test equipment requested is in place (list again at the end of this email), we should be able to set up and test the boxes within the 2 weeks allotted. We hope to establish that we can safely transport MUX boxes, and we hope to learn how effectively we can make simple repairs (light leaks, misaligned phototubes, broken PMT, etc.). Stage 2: Time: 1 week during installation of first planes (early to mid-June?) Labor: 1 or 2 FTE Personnel: people from Indiana MUX box factory (a bit hard to determine now since we have responsibilities for the calibration module and the week-in-the-woods) During this period we will move test equipment and the first MUX boxes into the mine. We will then install these first MUX boxes into the racks. The global plan is to install electronics at the mine or we have no access to dynodes (or even the anodes) and this task must be done before the boxes are tested. The RF shields will protect the connector boards during shipping but we take the covers off before testing. Stage 3: Time: summer 2001 Labor: 1 FTE Personnel: Brian Rebel Here we establish procedures for the installation of MUX boxes and train the mine crew. Stuart ----------------------------------------------------------------- Equipment needed for MUX box testing: Equipment for MUX box certification/installation: We supply: 1. Integrating sphere testing rig -- This is the device we are still designing to do thorough tests of MUX boxes at Indiana/Tufts. It includes an integrating sphere fit with hardware that outputs 28 uniformly illuminated fibers from a single LED onto a standard module optical connector and a single optical fiber onto a reference PMT. -integrating sphere + hardware -reference PMT -computer -CAMAC card interface -connector fixtures that allow 10-10-8 light signals into a MUX box (as done for light injection calibration system) We need from PREP: 1. Fast dual-channel oscilliscope (Tektronix 2465) 2. HV supply, 2.5 mA 3. gate generator (like LeCroy 222) 4. 3 x 12 channel ADCs (LeCroy 2249W) 5. CAMAC crate 6. NIM bin or adaptor for NIM module in CAMAC crate 7. pulser, 10V output, 20 ns pulse width We also need 1. Clean compressed air