[Acc_sem_comm] Potential speaker - Bruno Muratori

[Fay Hannon]

Hi All,
His tentative travel dates are 24/04 till 22/05 so later than initially anticipated. This should work out better for us.

Here is the abstract on what he would present:

Multipole Fringe Fields

Bruno Muratori, ASTeC, Daresbury Laboratory (STFC) & Cockcroft Institute, UK

When creating an initial model of an accelerator, one usually has to resort to a hard edge model for the quadrupoles and higher order multipoles at the start of the project. Ordinarily, it is not until much later on that a field map for the given multipoles becomes available. This can be rather inconvenient when dealing with particularly thin elements or elements which are rather close together in a beamline as the hard edge model is usually inadequate for the level of precision desired. For example, in the EMMA project, the two types of quadrupoles used are so close together that they are usually described by a single field map or via hard edge models. The first method has the desired accuracy but was not available at the start of the project and the second is known to be a rough approximation. An analytic expression is derived and presented for fringe fields for a multipole of any order. The theory is then successfully applied to the EMMA quadrupoles as well as the LHC inner triplet quadrupoles. Future work and possible extensions will also be discussed.

Fay


From: Gianluigi Ciovati <gciovati at jlab.org>
Sent: Thursday, March 21, 2019 1:21 PM
To: Fay Hannon <fhannon at jlab.org>; Acc_Sem_Comm at jlab.org
Subject: Re: Potential speaker - Bruno Muratori


Hi all,

I'm in favor.



Thanks,

Gigi

________________________________
From: Acc_sem_comm <acc_sem_comm-bounces at jlab.org<mailto:acc_sem_comm-bounces at jlab.org>> on behalf of Fay Hannon <fhannon at jlab.org<mailto:fhannon at jlab.org>>
Sent: Thursday, March 21, 2019 9:38:10 AM
To: Acc_Sem_Comm at jlab.org<mailto:Acc_Sem_Comm at jlab.org>
Subject: [Acc_sem_comm] Potential speaker - Bruno Muratori


Hi,



It is likely that Bruno Muratori from Daresbury Lab will be at CBETA mid-late April for experiments. Would we still like him to give a seminar opportunity this visit on fringe fields? We may have to support flights from NY to Jlab to make it work.



Please let me know your thoughts.

Fay
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