[ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Tanner, John J. 
When we opened our CX100 shipping dewar returned from APS via FedEx this week, 
we observed what appears to be tiny rocks on the rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0

Has anyone seen this before? Is this perhaps the absorbent material from the 
inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu
https://cafnrfaculty.missouri.edu/tannerlab/
Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Jurgen Bosch 
That looks like gravel from the driveway where the dewar was tossed around
Jürgen 

> On Dec 4, 2020, at 11:04 AM, Tanner, John J.  wrote:
> 
> When we opened our CX100 shipping dewar returned from APS via FedEx this 
> week, we observed what appears to be tiny rocks on the rim below the foam 
> neck core:
> 
> https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0 
> 
> 
> Has anyone seen this before? Is this perhaps the absorbent material from the 
> inside of the dewar? 
> 
> Thanks,
> 
> Jack
> 
> John J. Tanner
> Professor of Biochemistry and Chemistry
> Associate Chair of Biochemistry
> Department of Biochemistry
> University of Missouri
> 117 Schweitzer Hall
> 503 S College Avenue
> Columbia, MO 65211
> Phone: 573-884-1280
> Email: tanne...@missouri.edu 
> https://cafnrfaculty.missouri.edu/tannerlab/
> Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
> Office: Schlundt Annex 203A
> 
> To unsubscribe from the CCP4BB list, click the following link:
> https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1 
> 



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Nukri Sanishvili 
Hi John,
These look like real pebbles. If so, they would not word as an absorbent.
It looks more like a bad joke. Was the FedEx driver expecting some kind of
Thanksgiving gift from you? Wait till Christmas time then to see the real
surprises...
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. 
wrote:

> When we opened our CX100 shipping dewar returned from APS via FedEx this
> week, we observed what appears to be tiny rocks on the rim below the foam
> neck core:
>
> https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0
>
> Has anyone seen this before? Is this perhaps the absorbent material from
> the inside of the dewar?
>
> Thanks,
>
> Jack
>
> John J. Tanner
> Professor of Biochemistry and Chemistry
> Associate Chair of Biochemistry
> Department of Biochemistry
> University of Missouri
> 117 Schweitzer Hall
> 503 S College Avenue
> Columbia, MO 65211
> Phone: 573-884-1280
> Email: tanne...@missouri.edu 
> https://cafnrfaculty.missouri.edu/tannerlab/
> Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
> Office: Schlundt Annex 203A
>
> --
>
> To unsubscribe from the CCP4BB list, click the following link:
> https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1
>



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Fischmann, Thierry 
We’ve had issues with the adsorbent material inside a dewar peeling out as 
small particles but they were white in color. Not sure it’s the same.

If the dewar is defective the stuff will ultimately find its way to and gum up 
the goniohead motors, so it’s important to address this.

Thierry

From: CCP4 bulletin board  On Behalf Of Jurgen Bosch
Sent: Friday, December 4, 2020 11:18 AM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

EXTERNAL EMAIL – Use caution with any links or file attachments.
That looks like gravel from the driveway where the dewar was tossed around
Jürgen


On Dec 4, 2020, at 11:04 AM, Tanner, John J. 
mailto:tanne...@missouri.edu>> wrote:

When we opened our CX100 shipping dewar returned from APS via FedEx this week, 
we observed what appears to be tiny rocks on the rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0

Has anyone seen this before? Is this perhaps the absorbent material from the 
inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu<mailto:tanne...@missouri.edu>
https://cafnrfaculty.missouri.edu/tannerlab/
Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A


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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Pedro Matias 
It does not look like absorbent material and why should it be outside 
the dewar and not all over the pucks?


I concur with Jürgen - it does look like gravel.

Às 16:18 de 04/12/2020, Jurgen Bosch escreveu:
That looks like gravel from the driveway where the dewar was tossed 
around

Jürgen

On Dec 4, 2020, at 11:04 AM, Tanner, John J. > wrote:


When we opened our CX100 shipping dewar returned from APS via FedEx 
this week, we observed what appears to be tiny rocks on the rim below 
the foam neck core:


https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0 



Has anyone seen this before? Is this perhaps the absorbent material 
from the inside of the dewar?


Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu 
https://cafnrfaculty.missouri.edu/tannerlab/ 


Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Nukri Sanishvili 
Hi John,
I think I know what might have happened:
Many of the MX beamlines at the APS use some sort of filler in the
containers where the LN2 is dumped. If I remember correctly, one of the
beamlines is using fine gravel for this purpose. Also, it is required that
before shipping, the dewars are emptied - i.e. don't contain liquid. Now,
imagine somebody dumping the liquid into the grave-filled container without
removing the blue cap and without holding the dewar in the air - i.e. the
top of the dewar with the cap on is slightly buried into the gravel. Upon
straightening the dewar up, the blue cap would scoop up a little bit of the
gravel. Distribution of the pebbles on your picture is also noteworthy. It
suggests the side where the pebbles are was the side dipped into the gravel.
You might want to discuss this with your beamline host.
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. 
wrote:

> When we opened our CX100 shipping dewar returned from APS via FedEx this
> week, we observed what appears to be tiny rocks on the rim below the foam
> neck core:
>
> https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0
>
> Has anyone seen this before? Is this perhaps the absorbent material from
> the inside of the dewar?
>
> Thanks,
>
> Jack
>
> John J. Tanner
> Professor of Biochemistry and Chemistry
> Associate Chair of Biochemistry
> Department of Biochemistry
> University of Missouri
> 117 Schweitzer Hall
> 503 S College Avenue
> Columbia, MO 65211
> Phone: 573-884-1280
> Email: tanne...@missouri.edu 
> https://cafnrfaculty.missouri.edu/tannerlab/
> Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
> Office: Schlundt Annex 203A
>
> --
>
> To unsubscribe from the CCP4BB list, click the following link:
> https://www.jiscmail.ac.uk/cgi-bin/WA-JISC.exe?SUBED1=CCP4BB&A=1
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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Diana Tomchick 
Interesting observation. In our home X-ray lab, we constructed a liquid 
nitrogen dumping station from a large garbage can filled with sand to about 12 
inches. To keep the sand out of the dewars we topped the sand with a large wad 
of screen-door netting. All items can easily be purchased from a local home 
improvement store, and the screen-door netting is super cheap (plus it makes it 
easy to remove the stray bits of garbage that mistakenly find their way into 
the nitrogen dump/garbage can (you can put a sign that states, “not for 
garbage” on a garbage can, but you can’t get 100% compliance, LOL).

Diana

**
Diana R. Tomchick
Professor
Departments of Biophysics and Biochemistry
UT Southwestern Medical Center
5323 Harry Hines Blvd.
Rm. ND10.214A
Dallas, TX 75390-8816
diana.tomch...@utsouthwestern.edu
(214) 645-6383 (phone)
(214) 645-6353 (fax)




On Dec 4, 2020, at 10:42 AM, Nukri Sanishvili 
mailto:sannu...@gmail.com>> wrote:


EXTERNAL MAIL

Hi John,
I think I know what might have happened:
Many of the MX beamlines at the APS use some sort of filler in the containers 
where the LN2 is dumped. If I remember correctly, one of the beamlines is using 
fine gravel for this purpose. Also, it is required that before shipping, the 
dewars are emptied - i.e. don't contain liquid. Now, imagine somebody dumping 
the liquid into the grave-filled container without removing the blue cap and 
without holding the dewar in the air - i.e. the top of the dewar with the cap 
on is slightly buried into the gravel. Upon straightening the dewar up, the 
blue cap would scoop up a little bit of the gravel. Distribution of the pebbles 
on your picture is also noteworthy. It suggests the side where the pebbles are 
was the side dipped into the gravel.
You might want to discuss this with your beamline host.
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. 
mailto:tanne...@missouri.edu>> wrote:
When we opened our CX100 shipping dewar returned from APS via FedEx this week, 
we observed what appears to be tiny rocks on the rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0

Has anyone seen this before? Is this perhaps the absorbent material from the 
inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu
https://cafnrfaculty.missouri.edu/tannerlab/
Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread David Schuller 
We use aquarium gravel for this purpose. It does not have the fine 
dust-like particles that normal construction gravel might.


On 12/4/20 11:42 AM, Nukri Sanishvili wrote:

Hi John,
I think I know what might have happened:
Many of the MX beamlines at the APS use some sort of filler in the 
containers where the LN2 is dumped. If I remember correctly, one of 
the beamlines is using fine gravel for this purpose. Also, it is 
required that before shipping, the dewars are emptied - i.e. don't 
contain liquid. Now, imagine somebody dumping the liquid into the 
grave-filled container without removing the blue cap and without 
holding the dewar in the air - i.e. the top of the dewar with the cap 
on is slightly buried into the gravel. Upon straightening the dewar 
up, the blue cap would scoop up a little bit of the gravel. 
Distribution of the pebbles on your picture is also noteworthy. It 
suggests the side where the pebbles are was the side dipped into the 
gravel.

You might want to discuss this with your beamline host.
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. > wrote:


When we opened our CX100 shipping dewar returned from APS via
FedEx this week, we observed what appears to be tiny rocks on the
rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0


Has anyone seen this before? Is this perhaps the absorbent
material from the inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu 
https://cafnrfaculty.missouri.edu/tannerlab/

Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-04 Thread Georg Mlynek 
Hi Jack, was the dewar shipped on 1st April and just arrived? You can 
buy the CX100 also as CXR100 and there you can replace the adsorbent 
material. Looks like this.


https://www.google.com/search?q=replaceable+adsorbent+material+kits&rlz=1C1CHBF_deAT848AT848&sxsrf=ALeKk01N9aWj7Kw07AMDN1oGMnke1spe8A:1607102862749&source=lnms&tbm=isch&sa=X&ved=2ahUKEwj5r4Ha7LTtAhUR7eAKHbaZB6IQ_AUoAnoECAUQBA&biw=1920&bih=880#imgrc=o0UXuuQwacE4DM

Br, Georg.


Am 2020-12-04 um 5:42 PM schrieb Nukri Sanishvili:

Hi John,
I think I know what might have happened:
Many of the MX beamlines at the APS use some sort of filler in the 
containers where the LN2 is dumped. If I remember correctly, one of 
the beamlines is using fine gravel for this purpose. Also, it is 
required that before shipping, the dewars are emptied - i.e. don't 
contain liquid. Now, imagine somebody dumping the liquid into the 
grave-filled container without removing the blue cap and without 
holding the dewar in the air - i.e. the top of the dewar with the cap 
on is slightly buried into the gravel. Upon straightening the dewar 
up, the blue cap would scoop up a little bit of the gravel. 
Distribution of the pebbles on your picture is also noteworthy. It 
suggests the side where the pebbles are was the side dipped into the 
gravel.

You might want to discuss this with your beamline host.
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. > wrote:


When we opened our CX100 shipping dewar returned from APS via
FedEx this week, we observed what appears to be tiny rocks on the
rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0


Has anyone seen this before? Is this perhaps the absorbent
material from the inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu 
https://cafnrfaculty.missouri.edu/tannerlab/

Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-06 Thread Ginell, Stephan L. 
Hi Jack, I have never seen “dewar rocks“ before. It does not look like the 
internal absorbent which is whiteish. Any inside the dewar? Does it still stay 
cold?
Looks like rocks from a gravel walkway.
Steve

Sent from my iPhone

On Dec 4, 2020, at 10:05 AM, Tanner, John J.  wrote:


When we opened our CX100 shipping dewar returned from APS via FedEx this week, 
we observed what appears to be tiny rocks on the rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0

Has anyone seen this before? Is this perhaps the absorbent material from the 
inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu
https://cafnrfaculty.missouri.edu/tannerlab/
Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



To unsubscribe from the CCP4BB list, click the following link:
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Re: [ccp4bb] Tiny rocks on my CX100 shipping dewar

2020-12-06 Thread Ginell, Stephan L. 
I agree with Nukri

Sent from my iPhone

On Dec 4, 2020, at 10:42 AM, Nukri Sanishvili  wrote:


Hi John,
I think I know what might have happened:
Many of the MX beamlines at the APS use some sort of filler in the containers 
where the LN2 is dumped. If I remember correctly, one of the beamlines is using 
fine gravel for this purpose. Also, it is required that before shipping, the 
dewars are emptied - i.e. don't contain liquid. Now, imagine somebody dumping 
the liquid into the grave-filled container without removing the blue cap and 
without holding the dewar in the air - i.e. the top of the dewar with the cap 
on is slightly buried into the gravel. Upon straightening the dewar up, the 
blue cap would scoop up a little bit of the gravel. Distribution of the pebbles 
on your picture is also noteworthy. It suggests the side where the pebbles are 
was the side dipped into the gravel.
You might want to discuss this with your beamline host.
Best,
Nukri

On Fri, Dec 4, 2020 at 10:05 AM Tanner, John J. 
mailto:tanne...@missouri.edu>> wrote:
When we opened our CX100 shipping dewar returned from APS via FedEx this week, 
we observed what appears to be tiny rocks on the rim below the foam neck core:

https://www.dropbox.com/s/ky09a1vbm9t0mrl/CX100withrocks.png?dl=0

Has anyone seen this before? Is this perhaps the absorbent material from the 
inside of the dewar?

Thanks,

Jack

John J. Tanner
Professor of Biochemistry and Chemistry
Associate Chair of Biochemistry
Department of Biochemistry
University of Missouri
117 Schweitzer Hall
503 S College Avenue
Columbia, MO 65211
Phone: 573-884-1280
Email: tanne...@missouri.edu
https://cafnrfaculty.missouri.edu/tannerlab/
Lab: Schlundt Annex rooms 3,6,9, 203B, 203C
Office: Schlundt Annex 203A



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