  We outline the design of beam experiments for the electron linac at the
Fermilab Accelerator Science and Technology (FAST) facility and for the
Integrable Optics Test Accelerator (IOTA), based on synchrotron light emitted
by the electrons in bend dipoles, detected with gated microchannel-plate
photomultipliers (MCP-PMTs). The system can be used both for beam diagnostics
(e.g., beam intensity with full dynamic range, turn-by-turn beam vibrations,
etc.) and for scientific experiments, such as the direct observation of the
time structure of the radiation emitted by single electrons in a storage ring.
The similarity between photon pulses and spectrum at the downstream end of the
electron linac and in the IOTA ring allows one to test the apparatus during
commissioning of the linac.
