1. RF Pulse Shaping

2. Equipment List Arbitrary function generator
Fast attenuator (trise < 100 ns)
Low level (mW) 2856 MHz source
Linear 1kW amplifier
Klystron (> 20 MW)
S-band waveguide directional coupler
RF detector
3 m SLAC linac
LCLS prototype gun with cell field probes

3. Plan Build and Test Linear Amplifier
Test attenuator and amplifier with SLAC 3 m accelerator as load
Test with LCLS prototype gun as load
Demonstrate reaching gun field steady state value in 2t instead of >4t

4. Amplifier Measurements
Phase and amplitude flatness across the pulse
Phase vs. amplitude - from 10W to 1kW
Phase noise, jitter
Bandwidth measurements
Phase change time constants
Amplitude rise and fall times

5. Schedule Test Amplifier in January-February
Test Pulse shaping on linac February
Test Pulse shaping on gun March