Minutes of RESULTS, PITZ Physics Seminar, 04.09.2012

Project: PITZ
Participants. Mikhail Krasilnikov, Igor Isaev, Dmitriy Malyutin, Martin Khojoyan, Ji Li, Barbara Marchetti, Grigoriy Vashchenko, Matthias Gross, Frank Stephan, Marek Otevrel, Galina Asova, Georgeos Kourkafas, Mahmoud Bakr, Gunter Trowitsch, Irina Petrushina, Dieter Richter, Davit Kalantaryan 

Agenda:
1)	D.Kalantaryan “VMA Functionality transfer to strong host”
2)	Summer student (Irina Petrushina) report rehearsal, “Multipacting simulations”
3)	Annual work out
4)	AOB

Results:
1.	Errors in DMA stream (0.33% syst, 0.2% random). 
a.	Idea is to transfer the data flow to a high power front end PC.
b.	TCT/IP protocol to be used (more reliable than UDP)
c.	Problem at the sender side (VME)
2.	Multipacting (MP) simulations
a.	Gun-4, including only cathode area details (contact spring) for operation and special conditions, no MP found
b.	CDS regular cell (2 x ½ cells), 0.4MV/m and 20MV/m small effect found
c.	Gun-5 the entire structure, possible MP found for 8 MV/m, more simulations needed.

Next steps:
What is to be done?	By whom?	Until when?	Done on	
Meta servers (2?) have to be ordered	GT	After software realization		
Libraries to be created to realize the proposals	D. Kalantaryan	1-2 months		
Check other gradients for the gun-5 for MP	I. Isaev	End of October		
CDS booster more simulations on MP for end cells, coupling cell	I. Isaev	End of October		
Gun-4 results to be clarified with D.Lipka (concerning hot spots in the cathode area) and update MP simulations accordingly	I. Isaev	1 week		

Protocol prepared by
Mikhail Krasilnikov, 04.09.2012