Re: TouschekLifetime: machine vs model
Posted: 10 Jul 2015, 09:44
I am getting better with the comparison model / machine, having introduced random + multipole errors, corrected orbit, coupling etc
I am off by 20 to 30 % at different RF voltages. I still need to create a calibrated model though.
Having said that I have realized that when I measure the LT in the machine I wait to stabilize the system, which basically means I am letting polarization to set up, at least partially. On the other hand I understand that touschekLifetime code does not include polarization.
Do you adopt any strategy at APS in order to get a reliable/stable LT and avoid polarization to build up? Is there any plane to include P in the touschekLifetime code?
Thanks anyway
I am off by 20 to 30 % at different RF voltages. I still need to create a calibrated model though.
Having said that I have realized that when I measure the LT in the machine I wait to stabilize the system, which basically means I am letting polarization to set up, at least partially. On the other hand I understand that touschekLifetime code does not include polarization.
Do you adopt any strategy at APS in order to get a reliable/stable LT and avoid polarization to build up? Is there any plane to include P in the touschekLifetime code?
Thanks anyway