[Halla12_software] Fwd: Re: Minor magnet update

[Paul E. Reimer]

Hello All,

Zhiwen pointed out a mistake which I had made in the Babar field map.  I
have corrected that mistake.

Paul

-------- Original Message --------

Hi, Paul

no problem.
I looked three fields maps, yours, mine, Eugene's
Mine and Eugene's are the saem except the shift.
Yours is different. The outer box doesn't really matter, So there are 
something changed.
But if you think the map of mine is fine. you don't have to spend time 
to debug it.

Zhiwen

On 02/07/2011 02:14 PM, Paul E. Reimer wrote:
> Hi Zhiwen,
>
> I thought that I just shifted the origin to the center of the coil;
> changed the outer box size and then changed the grid spacing.  I will
> try to look at it, but I won't get to it until Wednesday evening.
>
> Paul
>
> On 2/7/2011 12:16 PM, Zhiwen Zhao wrote:
>> Hi, Paul
>>
>> I looked at the result of my Babar and your Babar map.
>> The one with symmetric distribution is mine, the one asymmetric is yours.
>> I got mine from modifying the AM file from Eugene by moving the coil
>> center to origin.
>> How do you get yours?
>> my am file
>> https://clas12svn.jlab.org/repos/trunk/clas12/gemc/production/database_io/halla12/solid/field/BaBar/solenoid_BaBar.am
>>
>> I haven't check other maps yet. Did you put center of coil at origin
>> also? We try to this consistently to make it easier  to move other
>> components.
>>
>> thanks
>>
>> Zhiwen
>>
>> On 02/07/2011 12:17 PM, Paul E. Reimer wrote:
>>> Hello,
>>>
>>> I just realized that I should add some comments to my magnet
>>> descriptions on the Wiki.  For the CDF magnet, my optimization move the
>>> target upstream from the coil center by 50 cm, since the coil is notably
>>> longer than Babar.  Also, I did not taper the upstream flux return of
>>> either CDF or ZEUS to accommodate the acceptance needed by SIDIS.  This
>>> can easily be done.  Just tell me the angle needed.
>>>
>>> Paul
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Halla12_software mailing list
>>> Halla12_software at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/halla12_software
>

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