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Message ID: 46     Entry time: Tue Jul 7 15:43:19 2009
Author: Damien Gallop 
Type: Routine 
Category: General 
Subject: ISIS emittance rig tests this morning 

Keerthi and I were front and centre doing ISIS emittance rig testing this morning. He ran it, and I tried to find ways to run the data in Matlab afterwards. Main limitation up there at the ISIS Console is lack of any ssh-enabled terminals. Keerthi's wireless laptop is okay, but this stuff pushes the poor little thing to the edge. Plus, there were some X display issues on it. He has Matlab installed locally, but it takes a bit of a rocket scientist to run it, and once you do get it going, Matlab complains that the data file format is incorrect. We believe it's a matter of line endings: Windows versus the rest of the unix/Linux/Mac/VMS world. So it goes. All in all, a successful morning. There is enough data to think about how it all works, and we have a couple of hours of R&D again tomorrow morning before production beam. I'll put in a few emittance panels here in a while. Keep in mind that these are with beams on the order of mA, not nA!

DataFile    Pulser     Arc       90%     86%     63%    cut%    #71    #72    111    112    113    30    nor. Emit.
 95152        5%        6A      4.01    3.51    1.91     1%                    0      4k     4k             0.101
102032       10%        6A      1.59    4.02    2.1      1%                    0      4k     4k             0.116
102904       20%        6A      4.89    4.29    2.21     1%                    0      4k     4k             0.122
103602       30%        6A      5.18    5.11    2.7      1%                    0      4k     4k             0.131
105650       40%        6A                               1%                    0      4k     4k        
             60%        6A                               1%                    0      4k     4k        
115852       70%        6A      6.21    5.56    3.07     1%                    0      4k     4k             0.157
120728       70%        6A      6.07    5.41    3        1%    2159            0      4k     4k             0.154
122216       70%        6A      5.96    5.32    2.94     1%           2247     0      4k     4k             0.151
123149       70%        7A       (no tuning)             1%           2247     0      4k     4k             0.147
124609       60%        7A       (bit of tuning)         1%     all tuned           all tuned                    

Meanwhile, OLIS and the Supernanogan were off overnight in preparation for transformer tap selection for the sake of the CSB. See WP#2009-07-07-7 for more details.Turbos were turned off in preparation for attaching 17O and 18O source gases. Both are attached now, and valved off presently. I restarted the Supernanogan with about a nA of 18O2+ at FC6. Let it cook for a bit.

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