  As a part of a feasibility study of using the Fermilab Electron Cooler for a
low-energy Relativistic Heavy Ion Collider (RHIC) run at Brookhaven National
Laboratory (BNL), the cooler operation at 1.6 MeV electron beam energy was
tested in a short beam line configuration. The main result of the study is that
the cooler beam generation system is suitable for BNL needs. In a striking
difference with running 4.3 MeV beam, no unprovoked beam recirculation
interruptions were observed.

Accelerator Physics