A primary long-term focus of the BELLA Center is to develop LPAs to reduce the size and cost of high-energy physics colliders. One primary goal on that path is to demonstrate electron beams at the 10-GeV level using the BELLA PW laser and meter-scale plasmas. Another is to demonstrate the coupling (staging) of two LPA modules, each powered by separate laser pulses. Reaching high particle energies will require staging many modules in series.
