[Dlsupport] task list 06/28/2016

[David Douglas]

Thanks Jim.

Part of the need for the polarity check is to establish the "parity" of 
the skews (which differs between EPICS and codes). I don't want to 
introduce bias, but if we could measure the poletip field (with sign) of 
each quad and log it, we'll save time overall. I'll sketch up a procedure.

Thanks

D


On 7/5/2016 11:00 AM, Jim Coleman wrote:
> Hi Dave,
>  We haven't powered any of the 4F quads yet.  That will not happen 
> until the spool pieces are installed due to splitting of the magnet. 
> We have to perform a voltage/ current/ polarity measurement of any 
> magnet as part of the HCO.  I'll make sure LCW gets put on the skews.
> -Jim
>
>  On 7/5/2016 10:08 AM, David Douglas wrote:
>>
>> re: #2) - please put the results of the test into the LERFLog. Thanks
>>
>> D
>>
>>
>> On 7/5/2016 10:07 AM, David Douglas wrote:
>>>
>>> Hi Jim - don't know if the following was communicated to you or not, but
>>>
>>> 1) Steve asked if the 10 additional skew quads needed water cooling. 
>>> Answer: if the other quads are run with water cooling, these will 
>>> need it as well. They run at the same fields as the normal quads.
>>>
>>> 2) Has each quad been polarity checked (i.e. a Hall probe put on 
>>> each pole of each quad)? We need to be sure there are consistent 
>>> sign conventions through 4F, and I'll need to know what pole of each 
>>> quad is at what sign and field level when the usual +5A test current 
>>> is being run.
>>>
>>> Thanks,
>>> DD
>>>
>>>
>>> On 6/30/2016 4:32 PM, Jim Coleman wrote:
>>>> apologies for sending it out late
>>>>
>>>>
>>>>
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>

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