To-do List for PMT Test stand

Spring Break

• Light source: Full integration needed. To be done Monday and Tuesday. Because we will be need to shuttle to Knudsen a bit for some components, this may take an extra day.
• Table: In control. Shop to start building Tuesday.
• Will use scope to directly measure the base currents.
• CAMAC: Have code to drive our crate controller. Would like Shimul (if possible) to put together a simple single-channel CAMAC code. Will then use this to build a multi-channel system.
• Will need to design/build cable feed through.
• In the process of doing this there will be lots of clean up/organization. What we really need is one-week's dedicated effort to get the lab "walking". Once the lab is walking, getting it running will be much easier.

March 21, 2001

• Test computer
  1. System basically works.
  2. Use testbed computer to try newer (=less prone to hacking) Linux.
  3. Louis in final configuration with 2.4.1 Linux kernel.
  4. Simple light source control code written and works.
• Interface board/box
  1. Digital part in reasonable shape except inputs not properly terminated.
  2. Analog part now also in reasonable shape. Needs testing. (C.H.)
  3. Add power-supply fanout. (C.H.)
  4. Build fairly neat prototype boards and put in rack mount with decent connectors. More work than it seems. Work has started. (C.H.)
  5. Ready for integrated power light-source tests after termination on inputs.
• LED pulser.
  1. Two exist. Second needs testing. (C.J.)
  2. Wider angle LEDs at UCLA. Could be used in test setup.
  3. UV LEDs exist at UCLA. Ready for relative efficiency measurements.
  4. Study angular dist of light and using dark room room/table geometry figure out how much diffusion is needed.
• Integrate light-source system. This is one week's hard work for all the people involved in the above items.
• Physical mounting for PMTs and relative intensities at different locations.
  1. Design table and subsections. (D.B. A.T.)
  2. Relative light intensities at different locations. (D.B. A.T.)
  3. Measure QE of some standard PMTs to determine above. (D.B. A.T.)
  4. Design plan to determine how we will measure the relative efficiencies of PMTs and how we will double check that it is not changing. (D.B. A.T.)
  5. Design the diffuser to spread light from LED over all PMTs. (D.B. A.T.)
• CAMAC daq system.
  1. PREP shipped "everything" in February
  2. except PCI card which should arrive today
  3. Camac work will not begin until early March in earnest, but Shimul's camac experience will be really handy here. I would like to use all of Shimul's time to work on this when the time comes to work on this.
  4. Want a simple CAMAC read system in place soon.
• STRB infrastructure
  1. Electronics rack. We have a lousy one. Will buy a decent one this week or early next week. (Lucky's truck.)
  2. Keys/keycode.
  3. Transport of hardware to STRB. (mostly done)
  4. Internet line. (in place)
  5. Phone line. (non existent, but my cell)
  6. door frame. (much better now)
  7. ventillation. (on hold)