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FW: FW: DC presentation remarks
-----Original Message-----
From: Achim Franz [mailto:afranz@bnl.gov]
Sent: Wednesday, February 12, 2003 6:00 PM
To: Hubert van Hecke
Cc: Susumu SATO; Jane Burward-Hoy
Subject: Re: FW: DC presentation remarks
Hubert and Susumu,
I'm not the keeper of the extrapolated 2D maps, Jane and Charlie are.
Jane correct me but is:
/phenix/workarea/janebh/field-integral/MagField/new/mmsfull_cmfull_mmnfu
ll_rev_2D.dat
Format:
r z br bz
the 2D file that got extended to larger 'r' ?? So Hubert and Susumu
could look up the field from that file ??
========================================================================
==
Achim Franz Achim@bnl.gov
http://www.phenix.bnl.gov/~afranz/
Brookhaven National Laboratory
Physics Department, Building 510C, Upton, New York, 11973-5000, USA
Tel.: +1 631 344 4750; Fax: +1 631 344 3253
========================================================================
==
On Feb 12, 2003, Hubert van Hecke wrote:
HvH >Hi Achim,
HvH >I went to the Magnet page, and I poked around the links for a
while. It is HvH >not so clear where I would find a value for a given
r,phi, z with all
HvH >three magnets on. Which of the links should I follow? Hubert
HvH >
HvH >On Wed, 12 Feb 2003, Achim Franz wrote:
HvH >
HvH >> Susumo,
HvH >>
HvH >> as I mentioned before PHENIX has 2D field maps which were
extended to HvH >> where the aerogel goes and you can use them yourself
to look up the field HvH >> strength including Br and Bz components. HvH
>> HvH >> HvH >>
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==
HvH >> Achim Franz Achim@bnl.gov
http://www.phenix.bnl.gov/~afranz/
HvH >> Brookhaven National Laboratory
HvH >> Physics Department, Building 510C, Upton, New York, 11973-5000,
USA HvH >> Tel.: +1 631 344 4750; Fax: +1 631 344 3253 HvH >>
========================================================================
==
HvH >> On Feb 12, 2003, Susumu SATO wrote:
HvH >>
HvH >> SS >Dear Achim
HvH >> SS >
HvH >> SS > It is not necessarily directly related to you but, it is HvH
>> SS >appreciated if you could consider this issue seriously HvH >> SS
>and put it into your schedule. If you need help, please HvH >> SS >tell
us, of course. This issue is raised about 2 weeks ago HvH >> SS >in the
floor planning meeting, but this is not closed yet. HvH >> SS >Our
design needs to be fixed very soon. HvH >> SS > HvH >> SS >>3) The
magnetic field issue should be resolved soon. If the field is HvH >> SS
>too HvH >> SS >>large for unprotected tubes, solutions tend to get
complicated or HvH >> SS >bulky, HvH >> SS >>or both. A quick
measurement during an access can lay this to rest (if HvH >> SS >>we're
lucky). HvH >> SS > HvH >> SS >Thank you very much in advance, HvH >> SS
>Sincerely, Susumu SATO. HvH >> SS > HvH >> SS >-----Original
Message----- HvH >> SS >From: owner-phenix-highpt-l@bnl.gov HvH >> SS
>[mailto:owner-phenix-highpt-l@bnl.gov] On Behalf Of Hubert van Hecke
HvH >> SS >Sent: Wednesday, February 12, 2003 1:44 PM HvH >> SS >To:
phenix-highpt-l@bnl.gov HvH >> SS >Subject: DC presentation remarks HvH
>> SS > HvH >> SS > HvH >> SS >Hi Susumu, HvH >> SS > HvH >> SS >I
listened in on your aerogel presentation this morning, and I'll repeat
HvH >> SS > HvH >> SS >some of the comments I made, and echo some from
others: HvH >> SS > HvH >> SS >1) The issue of cooling should be
considered. The bases are enclosed in HvH >> SS >sealed boxes, and need
to be cooled. This will take up space on the HvH >> SS >front HvH >> SS
>and the back of the big assemblies, which should be allocated sooner
HvH >> SS >rather than later. If that cooling will be done with air,
does this air HvH >> SS >need to be filtered in order to protect the
aerogel? Or, will there be a HvH >> SS > HvH >> SS >seal around the face
of the tubes so that the cooling gas will not enter HvH >> SS > HvH >>
SS >the aerogel/reflector compartment? Does the air/gas need to be
cooled? HvH >> SS > HvH >> SS >2) Envelope: the shape of the available
space is complicated, especially HvH >> SS > HvH >> SS >near the ends
(in z). There are cable bundles, FEM boxes and other stuff HvH >> SS >
HvH >> SS >protruding from the pad chambers and around the end frames.
I'm not sure HvH >> SS > HvH >> SS >if all these messy details are
available in drawings. Maybe these need HvH >> SS >to HvH >> SS >be
mapped out during an access. A realistic envelope for the TOF+aerogel
HvH >> SS > HvH >> SS >needs to be defined soon and strictly adhered to.
It will help narrow HvH >> SS >down various configuration options real
fast. HvH >> SS > HvH >> SS >3) The magnetic field issue should be
resolved soon. If the field is too HvH >> SS > HvH >> SS >large for
unprotected tubes, solutions tend to get complicated or bulky, HvH >> SS
> HvH >> SS >or both. A quick measurement during an access can lay this
to rest (if HvH >> SS >we're lucky).
HvH >> SS > cheers, Hubert
HvH >> SS > --
HvH >> SS
>-----------------------------------------------------------------------
-
HvH >> SS >--
HvH >> SS >--- Hubert van Hecke --- Los Alamos National
Laboratory
HvH >> SS >---
HvH >> SS >--- phone: (505) 667 5384 --- fax: (505) 665 7920
HvH >> SS >---
HvH >> SS >--- email: hubert@lanl.gov --- web:
http://p25ext.lanl.gov/~hubert/ HvH >> SS >--- HvH >> SS
>-----------------------------------------------------------------------
-
HvH >> SS >--
HvH >> SS >
HvH >> SS >
HvH >>
HvH >
HvH >--
HvH
>-----------------------------------------------------------------------
---
HvH >--- Hubert van Hecke --- Los Alamos National Laboratory
---
HvH >--- phone: (505) 667 5384 --- fax: (505) 665 7920
---
HvH >--- email: hubert@lanl.gov --- web:
http://p25ext.lanl.gov/~hubert/ --- HvH
>-----------------------------------------------------------------------
---
HvH >