AGS Ramp Polarization Measurement Recipe

Haixin Huang huanghai@bnl.gov

June 21, 2006

 

Description:

 

 This recipe describes how to take the polarization ramp measurement.

 

Process:

 

1. Open a xterm. type
ssh cnipol2 -l mcr
cd ado
cp new_set.ini.ramp new_set.ini

2. change the insertion and extraction of target timing on pet/AGS/Polarized_protons/CNI_target. Near the bottom, change the insertion "Delay from source" from 450000 to 50000; cange the extraction "Delay from source: from 1800000 to 750000.
3. take a target scan to find target center. It could be very different from flattop target center. 4 take ramp measurement. No need to analyze them click stop after the measurement is done will cancel the anaylsis.Do target scan after each measurement.
5. after the needed measurements done, reverse steps 1 and 2. namely:
change the insertion and extraction of target timing on pet/AGS/Polarized_protons/CNI_target. Near the bottom, change the insertion "Delay from source" from 50000 to 450000; cange the extraction "Delay from source: from 750000 to 1800000.
6. Open a xterm. type
ssh cnipol2 -l mcr
cd ado
cp new_set.ini.flattop new_set.ini