* Next meeting: Friday March 12th 4pm in "the Motel"

* attendees: Rodion, Markus, Nick, Kai, Helen, Jamie, 
             Matt, and Philippe 

* Plan for next week: 

-Monday:  Round beam studies (Kai/Steve)
          If time, do some "two pulses" studies (Rodion/Philippe)
-Tuesday: North cave will be running preventing us from running 
          cryo-system. Gun studies (Nick/Markus/Philippe)
-Wednesday: 9-Cell Transfer matrix (Philippe)
-Thursday: Morning (up to lunch time): Bunch length (Daniel)  
           Afternoon: Plasma (Matt et al.)
-Friday:   Plasma (Matt et al.) 

* Last week achievements:

- Monday:  Problem with the 9-cell (related to cryogenic system) 
           that prevented us from running. 
- Tuesday: Worked on the 9-cell in the morning (cave open) and 
	   two pulses studies in the afternoon (Rodion/Philippe)
- Wednesday: Round beam studies (Kai) measured beam envelope along 
           the beamline for a lower cavity gradient. 
- Thursday: Did some CTR measurement (Daniel), one autocorrelation 
          was recorded. Garry Lautenschlager (radiation safety) did 
	  some measurement of radiation level to define operating 
	  limit for A0 for both the 45 deg and the plasma experiment 
	  dumps. 
	  Plasma experiment (Matt et al.) ran. In the morning some 
	  some hardware work on the plasma source contributed in 
	  improving the ground loop problem that was observed the 
	  previous days
- Friday/Saturday: Worked on plasma, tried to improve charge 
          transmission up to plasma chamber: 70% of the charge 
	  emitted is currently transmitted (Matt + Nick). 

* Discussions:

- Philippe presented some measurement of the impact of the 
photo-cathode drive laser oscillator bandwidth on the 
energy spread of the beam as measured on X3. There is some 
strong correlation, with a y versus energy correlation 
when the oscillator is off its nominal bandwidth of ~20 Angstroms. 
These correlation are not understood yet. 

- Nick presented some results from the on-line modeling he has 
been working on. A set of scripts were written. These scripts 
can, from the current machine setting, build up an Astra input 
deck, run Astra and display results spot size on screens, and 
multi-slits images. 

- Philippe showed some attempt to understand discrepancies 
between simulation and measurement for the solenoid settings 
required to get a focus on X2 -- work still on-going.

- Rodion reported about his preliminary analysis of the 
measurement of time separation between two pulses generated 
with the pulse stacker. 

- Matt asked to have more charge out of the gun, i.e. more 
energy out of the laser. Rodion will come up with a plan 
(he actually did today) and we will discuss whether we should 
proceed with his plan. It was noted that in the past we have 
burnt laser component and we should be very careful not 
to exceed the damage threshold of any components.