Did not ask Dan about this. We can check when we get beam.
Who knows where all the places for this calibration exist in the code.
I will be pleasantly surprised it there is just one place that needs to
be changed. Also we need to decide when we change the code.
Cheers,
Douglas
26-415 M.I.T.
Tel: +1 (617) 258-7199
77 Massachusetts Avenue Fax: +1 (617)
258-5440
Cambridge, MA 02139, USA E-mail:
hasell@mit.edu
On Apr 13, 2005, at 6:07 PM, Chris Crawford wrote:
> Hi Doug,
> Was the calibration of the epics LDCCT variable OK? I was under the
> impression that Dan had been calibrating it periodically in hardware,
> so it should still be accurate.
> --thanks, Chris
>
> Electronic Log Book wrote:
>
>> Operator: hasell
>>
>> Easy shift - hall open.
>>
>> Karen, Dan, and I recalibrated the DCCT scaler against a calibrated
>> charge source. See run 15198. Also performed the fit. Results are
>> in ELOG. Interesting thing to note is that the voltage to frequency
>> converter is only good to just over 250 mA so unless we want to make
>> a big change we should stay below 250 mA for data acquisition.
>>
>> Michael and Karen replaced the laser on the flasher system. So that
>> is working again for runs 15206 and following.
>>
>> Aki has recalibrated the unpol system so it is now available for both
>> H and D.
>>
>> Nozzle was regenerated and Genya started ABS again.
>>
>> Bill and Taylan measured the circular polarisation of the laser just
>> before it entered the ring and found that it is getting worse with
>> time. Mostlikely the reason is dirty optics. Still the effect is
>> small enough that we won't do anything about it.
>>
>> Other that we took cosmic data.
>>
>> Started locking up the south hall at 16:30.
>>
>> Runs 15200-15201 15203-15209 are cosmic
>>
>>
>
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