[Sneap] Sneap Digest, Vol 50, Issue 5
Jeff Ashenfelter
jeffrey.ashenfelter at yale.edu
Thu Dec 4 16:34:19 EST 2008
Dear Ludwig and SNEAPERS
Sorry that it has taken me some time to post a response. The
University of Minnesota has yet to make the commitment to
decommission MP-2. In the meantime, as far as I know, nothing is
available. Since it involves a commitment of money as well as
authorization, it is unclear when this will happen.
Best Regards,
jeff
At 12:00 PM 11/25/2008, you wrote:
>Send Sneap mailing list submissions to
> sneap at daytona.tunl.duke.edu
>
>To subscribe or unsubscribe via the World Wide Web, visit
> http://daytona.tunl.duke.edu/mailman/listinfo/sneap
>or, via email, send a message with subject or body 'help' to
> sneap-request at daytona.tunl.duke.edu
>
>You can reach the person managing the list at
> sneap-owner at daytona.tunl.duke.edu
>
>When replying, please edit your Subject line so it is more specific
>than "Re: Contents of Sneap digest..."
>
>
>Visit the SNEAP 2003 Meeting Homepage at: http://sneap2003.in2p3.fr
> N E W !
>Visit the SNEAP 2004 Meeting Homepage at:
>http://www.science.mcmaster.ca/accelerator/sneap2004.html.
>
>
>Today's Topics:
>
> 1. Re: Quadrupole Lens (Chris Westerfeldt)
> 2. Re: Sneap Digest, Vol 50, Issue 4 (Miller, Thomas Edward)
> 3. Re: Quadrupole Lens (David Weisser)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Mon, 24 Nov 2008 13:40:00 -0500
>From: Chris Westerfeldt <cwest at tunl.duke.edu>
>Subject: Re: [Sneap] Quadrupole Lens
>To: SNEAP <sneap at tunl.duke.edu>
>Message-ID: <C5505F30.714B7%cwest at tunl.duke.edu>
>Content-Type: text/plain; charset="US-ASCII"
>
>Ludwig.
> Is there a part number on the coil itself? I used to have a couple of
>spare coils for either a 2" or 3" HVEC quad. I will check the number on
>them. I do have a 3" HVEC Quad doublet : D-MAG-321 I believe. It has 10"
>poles and is 30" overall.
>You might also contact the MP lab at Minnesota. They are in the process
>of deciding how to decommission that lab and may have a spare coil or a
>quadrupole available.
>Regards,
>- Chris
>+++
> > Hello Sneapers,
> >
> > we have a problem with our Quadrupole Lens at the exit of our MP8
> > Tandem. The field in one quadrupole of the doublet is incorrect. Is is
> > too low at one pole and to high at one of the neighbors. May be that
> > there is a short circuit between some windings of the coil with the
> > lower field...
> >
> > Therefore we are looking for spare parts (coils) or a complete lens. May
> > be that someone in the sneap community has such a lens, which is not
> > needed anymore.
> > Attached you find a picture of our lens. It is from HVEE a 4 inch Double
> > Quadrupole Assembly (Drawing nr. D-MAG-142)
> >
> > Waiting for your help or advice
> >
> > Ludwig Beck
> >
> > --
> > Dr. Ludwig Beck
> > Maier-Leibnitz-Labor / Beschleunigerlabor
> > Am Coulombwall 6
> > D-85748 Garching
> >
> > Tel. 089/289-14271
> > Fax 089/289-14280
>--
>
>Chris R. Westerfeldt
>Research Scientist / T.U.N.L. Radiation Safety Manager
>Duke University Physics Department &
>Triangle Universities Nuclear Laboratory
>Science Drive, Box 90308
>Durham, NC 27708-0308
>Tel: (919) 660-2600
>Fax: (919) 660-2634
>Email: Cwest at Tunl.Duke.Edu
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Mon, 24 Nov 2008 14:50:19 -0500
>From: "Miller, Thomas Edward" <millerte at purdue.edu>
>Subject: Re: [Sneap] Sneap Digest, Vol 50, Issue 4
>To: <sneap at tunl.duke.edu>
>Message-ID:
> <73EDE3D5906C2F4CB9A8E36BED5722C2042EA4F2 at EXCH02.purdue.lcl>
>Content-Type: text/plain; charset="us-ascii"
>
>Ludwig:
>
>Can you e-mail me the HVEC coil information that is written in white
>lettering on each of the coils? I'll take a look at some of our spare
>quads here.
>
>Thank you. Cheers!!!!!
>
>Tom Miller
>Purdue University
>PRIME Lab
>525 Northwestern Ave.
>West Lafayette, IN. 47907-2036
>765-494-5381
>FAX: 765-496-7228
>millerte at purdue.edu
>
>
>-----Original Message-----
>From: sneap-bounces at tunl.duke.edu [mailto:sneap-bounces at tunl.duke.edu]
>On Behalf Of sneap-request at tunl.duke.edu
>Sent: Monday, November 24, 2008 12:49 PM
>To: sneap at tunl.duke.edu
>Subject: Sneap Digest, Vol 50, Issue 4
>
>Send Sneap mailing list submissions to
> sneap at daytona.tunl.duke.edu
>
>To subscribe or unsubscribe via the World Wide Web, visit
> http://daytona.tunl.duke.edu/mailman/listinfo/sneap
>or, via email, send a message with subject or body 'help' to
> sneap-request at daytona.tunl.duke.edu
>
>You can reach the person managing the list at
> sneap-owner at daytona.tunl.duke.edu
>
>When replying, please edit your Subject line so it is more specific
>than "Re: Contents of Sneap digest..."
>
>
>Visit the SNEAP 2003 Meeting Homepage at: http://sneap2003.in2p3.fr
> N E W !
>Visit the SNEAP 2004 Meeting Homepage at:
>http://www.science.mcmaster.ca/accelerator/sneap2004.html.
>
>
>Today's Topics:
>
> 1. Quadrupole Lens (Ludwig Beck)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Mon, 24 Nov 2008 16:59:23 +0100
>From: Ludwig Beck <Ludwig.Beck at physik.uni-muenchen.de>
>Subject: [Sneap] Quadrupole Lens
>To: Symposium of Northeastern Accelerator Personnel
> <sneap at tunl.duke.edu>
>Message-ID: <492ACF5B.1000701 at physik.uni-muenchen.de>
>Content-Type: text/plain; charset="iso-8859-15"
>
>Hello Sneapers,
>
>we have a problem with our Quadrupole Lens at the exit of our MP8
>Tandem. The field in one quadrupole of the doublett is incorrect. Is is
>too low at one pole and to high at one of the neighbours. May be that
>there is a short circuit between some windings of the coil with the
>lower field...
>
>Therefore we are looking for spare parts (coils) or a complete lens. May
>
>be that someone in the sneap community has such a lens, which is not
>needed anymore.
>Attached you find a picture of our lens. It is from HVEE a 4 inch Double
>
>Quadrupole Assembly (Drawing nr. D-MAG-142)
>
>Waiting for your help or advice
>
>Ludwig Beck
>
>--
>Dr. Ludwig Beck
>Maier-Leibnitz-Labor / Beschleunigerlabor
>Am Coulombwall 6
>D-85748 Garching
>
>Tel. 089/289-14271
>Fax 089/289-14280
>
>-------------- next part --------------
>A non-text attachment was scrubbed...
>Name: IMG_1310.jpg
>Type: image/jpeg
>Size: 2689533 bytes
>Desc: not available
>Url :
>http://daytona.tunl.duke.edu/pipermail/sneap/attachments/20081124/49903a
>9f/attachment.jpg
>
>------------------------------
>
>_______________________________________________
>Sneap mailing list
>Sneap at daytona.tunl.duke.edu
>http://daytona.tunl.duke.edu/mailman/listinfo/sneap
>
>
>End of Sneap Digest, Vol 50, Issue 4
>************************************
>
>
>------------------------------
>
>Message: 3
>Date: Tue, 25 Nov 2008 11:03:54 +1100
>From: "David Weisser" <david.weisser at anu.edu.au>
>Subject: Re: [Sneap] Quadrupole Lens
>To: "Symposium of Northeastern Accelerator Personnel"
> <sneap at tunl.duke.edu>
>Message-ID: <PMEDJGBOJNBFFGJBCHCKKEMKDDAA.david.weisser at anu.edu.au>
>Content-Type: text/plain; charset="us-ascii"
>
>Ludwig,
>
>Our experience with "replacement" coils has been bad. HVEC replacement
>coils with nominally the same number of turns produced significantly
>different fields than the original ones. This was for a 3" HVEC quad. Alan
>Cooper reported on this at the last SNEAP. Although we don't understand why
>a coil with supposedly the same number of turns should produce a different
>field, we decided that we had to use them is sets of 4 in a quad singlet
>rather than replace just one.
>
>I understand that the decommissioning of the Minnesota MP will be handled by
>Jeff Ashenfelter (ash at mirage.physics.yale.edu) from Yale but that the
>process is delayed. I strongly suggest getting 4 coils or the whole quad.
>
>David
>
>
>********************************************
>D.C. Weisser
>Nuclear Physics Department
>Research School of Physical Sciences and Engineering
>Australian National University
>Canberra A.C.T. 0200
>AUSTRALIA
>
>Tel: + 61 (0)2 6125 2080
>Fax: + 61 (0)2 6125 0748
>Mobile: + 61 (0)414 249 209
>
>david.weisser at anu.edu.au
>
>-----Original Message-----
>From: sneap-bounces at tunl.duke.edu [mailto:sneap-bounces at tunl.duke.edu]On
>Behalf Of Ludwig Beck
>Sent: Tuesday, 25 November 2008 2:59 AM
>To: Symposium of Northeastern Accelerator Personnel
>Subject: [Sneap] Quadrupole Lens
>
>
>
>
>
>
>
>
>------------------------------
>
>_______________________________________________
>Sneap mailing list
>Sneap at daytona.tunl.duke.edu
>http://daytona.tunl.duke.edu/mailman/listinfo/sneap
>
>
>End of Sneap Digest, Vol 50, Issue 5
>************************************
More information about the Sneap
mailing list