DOE EPSCoR Proposal

A Positron Source for JLAB

Year 1

1. Check positron productions efficiency simulations for 10-20 MeV electrons on Tungsten Target
2. Measure positron emmitance and compare to simulation predictions
3. Repeat above measurements at different tilt angles

Year 2

1. Use Genetic algorithm with Simulation predictions to optimize positron production
2. Begin designing tungsten converter capable of handling high heat load
3. CEBAF can accept particles into acceleration stage as long as [math]\frac{\Delta E}{E} \leq 10^{-2}[/math]
4. Electrons are injected at 500 MeV (1 GeV) for a 6 GeV (12 GeV) CEBAF. Currently [math]\frac{\Delta E}{E} \leq 10^{-5}[/math]

Year 3

1. Test design configuration from Genetic Algorithm at the IAC
2. measure tungsten converter target performance as function of IAC beam current
3. IAC beam is x 40 less power than what will be needed at JLAB