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RE: target shape



Hi Bernhard,

My experience in these simulations tells me , as long as we preserve
the front to back symmetry,  the shape of the target is
not very important (if it is symmetric in x-y-z).
More important issue is, if it's better to have a uniform
field or non-uniform field.  Honestly I couldn't answer this
question yet since I didn't quantify it.  But it looks
like uniform field can be handled easier since we know
the contribution.  But also how uniform is the next question?
 
I will continue and finish this work and will
write a report on that when I found time since we are mostly
preparing for MUCAP/MULAN run work.

Best,   Cenap.





>===== Original Message From lauss@socrates.Berkeley.EDU =====
>Dear BIR team,
>
>
>As I understand Cenap and Dan did the calculation to see
>the effect of a homogenous/inhomogeneous B-field on the
>lifetime result.
>
>I would ask the responsible if possible to run the same
>code for a homogenous field again, but this time replacing
>the round target disc with a target disc according to my
>attached drawing.
>
>Reason for the request:  I succeeded to cut my thick
>sulfur disk; however, the material is very brittle an
>we did not succed in machining roundings or so.
>I attached a foto of the disk where you can see. that
>the disk looks ok, but there is a large crack across
>the target-square.
>So even with the thick disk it will be hard.
>
>The attached drawing shows a possibility how to make
>a reasonable target-shape out of straight cuts.
>A prior check of the influence of this target-shape
>on the measurement would be great.
>
>
>  Thanks
>
>     Bernhard
>
>
>*******************************************************************
>Bernhard Lauss                 E-Mail: lauss@socrates.berkeley.edu
>Physics Department
>366 LeConte Hall
>University of California @ Berkeley
>Berkeley, CA 94720                             Tel: (510)-642 4057
>United States                                  Fax: (510)-642 9811
>*******************************************************************