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July 2013

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From:
Peter Gabriel Pitrone <[log in to unmask]>
Reply To:
Confocal Microscopy List <[log in to unmask]>
Date:
Thu, 11 Jul 2013 11:35:42 +0200
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*****
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Hey All,

I use Aluminum foil to ward off the aliens stealing my thoughts, and of
course to ward off WiFi and Cellphone signals... So yeah, that should
help with the HyD detectors. ;-)

Pete

-- 
Peter Gabriel Pitrone - TechRMS
Microscopy/Imaging Specialist
Prof. Dr. Pavel Tomancak group
Max Planck Institute for
Molecular Biology and Genetics
Pfotenhauerstr. 108
01307 Dresden

"If a straight line fit is required, obtain only two data points." - Anon.


On Wed, July 10, 2013 8:10 am, Sylvie Le Guyader wrote:
<|> *****
<|> To join, leave or search the confocal microscopy listserv, go to:
<|> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
<|> *****
<|>
<|> Hi out there
<|>
<|> Same experience for us. We were getting random interference lines from
<|> our bright field detector on a NikonA1. It was not linked to cell phones
<|> though but from the cables of another system that stands very nearby.
<|> Shielding the cables with alu foil worked a charm.
<|> Sylvie
<|>
<|> On 9 Jul 2013, at 23:50, "Alexander,Steve" <[log in to unmask]>
<|> wrote:
<|>
<|> *****
<|> To join, leave or search the confocal microscopy listserv, go to:
<|> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
<|> *****
<|>
<|> You could try to shield them with aluminum foil. I tried that to find a
<|> interference source on a different system and it worked!
<|>
<|> Steve Alexander
<|>
<|>
<|>
<|> -----Original Message-----
<|> From: Confocal Microscopy List [mailto:[log in to unmask]]
<|> On Behalf Of Yevgeniy Romin
<|> Sent: Tuesday, July 09, 2013 4:36 PM
<|> To: [log in to unmask]
<|> Subject: Re: Possible cell phone interference with hybrid detectors
<|>
<|> *****
<|> To join, leave or search the confocal microscopy listserv, go to:
<|> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
<|> *****
<|>
<|> Hi Ben
<|>
<|> We have the same problem with one of our sp5 systems that has HyDs on
it.
<|> Every once in a while you see a saturated line across the image. We have
<|> been careful with cell phones around the system, but these lines tend to
<|> happen anyway every once in a while. We had them happen just from a door
<|> opening or closing on the room. My impression is that while cell phones
<|> could be part of the problem, they are probably not the only ones. There
<|> could be plenty of equipment or anything else in the room that sometimes
<|> interferes. We have these lines very rarely, but I can't think of a
<|> scenario where they are completely guaranteed not to show up.
<|>
<|> That being said, we have two other inverted systems, an sp5 with 3 HyDs
<|> and an SP8 with 2 HyDs. We never see any interference  lines on these
<|> systems, no matter what is going on in the room. My theory is that the
<|> HyDs on the inverted scanheads are hidden away towards the rear of the
<|> microscope and are perhaps better shielded from interference then those
<|> on the upright system, where they are just sticking out in the open. I
<|> communicated this theory to Leica, and they said that this could
<|> potentially be an explanation, but they haven't yet come up with any
idea
<|> for potential shielding of them.
<|>
<|> Hope this helps,
<|> Yevgeniy
<|>
<|>
<|>
<|>
<|> Jul 9, 2013, Χ 5:24 PM, "Alison North" <[log in to unmask]>
<|> ΞΑΠΙΣΑΜ(Α):
<|>
<|>> *****
<|>> To join, leave or search the confocal microscopy listserv, go to:
<|>> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
<|>> *****
<|>>
<|>> Hi Ben,
<|>>
<|>> We were warned by the Leica guys not to use cellphones anywhere near
<|>> the scan head on the SP8 - in fact it has a great big picture of a
<|>> cellphone with a line through it on the scanhead! - so I guess it is a
<|>> well-known problem, not a special "feature" of your system.
<|>>
<|>> Best wishes,
<|>> Alison
<|>>
<|>> On 7/9/2013 5:13 PM, Smith, Benjamin E. wrote:
<|>>> *****
<|>>> To join, leave or search the confocal microscopy listserv, go to:
<|>>> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
<|>>> *****
<|>>>
<|>>> Hi all,
<|>>>    Our Leica SP8 has a pair of HyD detectors, and I've noticed
<|>>> recently that we will get a series of saturated lines during a scan
<|>>> at random, intermittent moments.  Judging by their appearance, my
<|>>> guess has been that the detectors were picking up cellular data
<|>>> transmissions.  Every time I saw them, someone had a cell phone on
<|>>> them, and having them move the cell phone to the far side of the
<|>>> room, or turning the cell phone off, stopped the lines from
<|>>> occurring.
<|>>>
<|>>>    I was wondering if anyone else has noticed this with hybrid
<|>>> detectors, and whether this is normal behavior or something we need
<|>>> to have looked into.
<|>>>
<|>>> Thanks,
<|>>>    Ben Smith
<|>>>
<|>>> Benjamin E. Smith, Ph.D.
<|>>> Samuel Roberts Noble Microscopy Laboratory Research Scientist II
<|>>> University of Oklahoma Norman, OK 73019
<|>>> E-mail: [log in to unmask]
<|>>> Voice   405-325-4391
<|>>> FAX  405-325-7619
<|>>> http://www.microscopy.ou.edu/
<|>>
<|>> --
<|>> Alison J. North, Ph.D.,
<|>> Research Associate Professor and
<|>> Senior Director of the Bio-Imaging Resource Center, The Rockefeller
<|>> University,
<|>> 1230 York Avenue,
<|>> New York,
<|>> NY 10065.
<|>> Tel: office    ++ 212 327 7488
<|>> Tel: lab        ++ 212 327 7486
<|>> Fax:            ++ 212 327 7489
<|>
<|>
<|>    
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