SVN: ​http://gauss.bu.edu/svn/tof-system/

Two experiments:

• "Regular Helium Atom Scattering" (using microchannel plate) ​Diagram ​(diagram with box photos)
• "Metastable Helium Atom Scattering" (using channeltron) ​Diagram ​(diagram with box photos)

The following boxes/instruments need to be constructed:

• TOF box
  • FPGA board with pseudo-random pulser and TDC; controlled via USB/serial I/F
  • Pulse input from detector preamp (also supplies preamp power)
  • 0..-25V manually adjustable supply for cathode offset (with panel meter)
• Filament supply
  • Isolated supply, 0-3A constant current (?)
• HV Pulser / Mixer
• LV Pulser / Mixer
• Preamp (MCP)
• Preamp (Channeltron)
• E-Gun power supply

On 5/30/19, Michael visited. He says only the first 4 boxes are needed. Xuetao will not use the Channeltron because he has a huge MCP.

For the "Regular" experiment, we use the MCP preamp and LV pulser

For the "Metastable" experiment, we use the Channeltron preamp and HV pulser

Photos (by board/box):

• ​http://ohm.bu.edu/~hazen/elbat_tof/Photos/

Photos (raw):

• ​http://gauss.bu.edu/svn/tof-system/Photos/