Author Topic: CAMCOR Lokey Lab design  (Read 370 times)

Probeman

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CAMCOR Lokey Lab design
« on: October 01, 2014, 03:49:49 pm »
Ok, I'll get things rolling as I have spent considerable time and effort thinking about optimizing laboratory performance and stability in the designing of our CAMCOR characterization labs in Huestis Hall. The entire facility consists of a single story underground with turf overhead and rock underneath. Now just with this type of siting, one can improve vibration, EMI and temperature control. For those interested in more details see this link here:

http://camcor.uoregon.edu/about/facility-tour

For those of you that have visited our facility you are aware that it is quite nice with impressive performance specs which I will insert as an attachments below for more information. For example, vibration levels 4 to 8 times better than NIST-A depending on frequency.



This was taken while we were moving the instruments in:



A shot after the SX50 and Sx100 were moved in:


« Last Edit: March 08, 2016, 10:39:42 am by Probeman »
The only stupid question is the one not asked!

Probeman

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Re: CAMCOR Lokey Lab design
« Reply #1 on: October 07, 2014, 12:44:16 pm »
The best way to determine temperature stability for your laboratory is to directly measure temperature using a digital recording thermometer. There are many models available and usually cost between $200 to $400. This is the one we use though it is a little more expensive:

http://www.dicksondata.com/products/FH625

Because most labs I've worked in have terrible temperature stability control (usually the A/C is insufficient in BTU rating), I implemented a drift correction for the unknown measurements that is automatically applied to all unknowns if they are between standardizations in real time.

Here's an example of several days of operation in our new lab which shows excellent intensity stability:

Drift array standard intensities (cps/30nA) (background corrected):
ELMXRY:    na ka   si ka    k ka   al ka   mg ka   ca ka   ti ka   mn ka   fe ka    p ka   cr ka
MOTCRY:  1   TAP 2  LPET 2  LPET 4   TAP 1   TAP 5   LIF 3  LLIF 3  LLIF 5   LIF 4   TAP 3  LLIF
STDASS:      336     162     374     336     162     162      22      25     162     285     396
STDVIR:        0       0       0       0       0       0       0       0       0       0       0
          2533.6  9875.5  6024.1  8171.4  2855.9   328.8  6415.5 14908.2   596.5  9707.0  5288.6
          2522.5  9977.4  6006.2  8341.4  2841.3   338.5  6377.0 14945.2   596.2  9633.9  5166.0
          2517.3  9989.2  6010.5  8218.5  2837.0   339.9  6428.2 14926.4   601.5  9695.2  5231.3
          2504.6 10013.6  5999.0  8312.4  2850.8   337.9  6456.1 14052.2   606.4  9566.2  5212.1
          2522.0 10026.2  5159.5  8303.9  2834.5   337.0      -       -    599.4      -       -
              -  10011.7      -       -   2820.3   333.8      -       -    600.0      -       -
              -   9995.9      -       -   2855.1   337.5      -       -    600.3      -       -

But even though the temperature control in our new lab is excellent, we still almost always measure standards before and after all unknown runs because in PFE it is just a couple of mouse clicks (assuming your standards are in the instrument along with your unknowns!), and then you know for certain that the instrument was stable during the entire measurement period.

And if it wasn't, the automatic drift correction in the software takes care of it for you anyway!
The only stupid question is the one not asked!

Probeman

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Re: CAMCOR Lokey Lab design
« Reply #2 on: December 08, 2014, 02:52:41 pm »
I took a few pictures showing a few of the features of our equipment gallery.

They are attached and are annotated so they should be self explanatory, but they include the pump vibration isolation, "slow opening" rough valves, P-10 low pressure alarm, diesel backup up UPS unit,  and the Al shielded power panels...

The modeling of the EMI reduction from the Al shielding is posted here:

http://probesoftware.com/smf/index.php?topic=354.msg2066#msg2066

I should mention that the Aqua-Trap cold trap supplied by Cameca (made by Poly-Cold in California) is exceptionally robust. No problems and it maintains 100 degrees Kelvin all the time. I warm it up once a year to be safe.

The 6 mm (1/4") Al sheet EMI shielding extends all the around around and in back of the power panels between the power panels and the laboratory wall. This is documented here:

http://probesoftware.com/smf/index.php?topic=354.msg2066#msg2066
« Last Edit: December 08, 2014, 07:22:21 pm by John Donovan »
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Probeman

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Re: CAMCOR Lokey Lab design
« Reply #3 on: September 29, 2015, 11:39:48 am »
Attached (remember, you must be logged in as a member to see), are a number of building design and specification documents we utilized in our Lokey Lab building.

Please let me know if you need additional information or have any questions.
john
The only stupid question is the one not asked!

Probeman

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Re: CAMCOR Lokey Lab design
« Reply #4 on: September 29, 2015, 11:41:46 am »
Attached (remember, you must be logged in as a member to see), are a number of building design and specification documents we utilized in our Lokey Lab building.

Please let me know if you need additional information or have any questions.
john
The only stupid question is the one not asked!

Heather Lowers

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Re: CAMCOR Lokey Lab design
« Reply #5 on: September 30, 2015, 11:24:19 am »
Attached (remember, you must be logged in as a member to see), are a number of building design and specification documents we utilized in our Lokey Lab building.

Please let me know if you need additional information or have any questions.
john

Thank you John! 

Did I do it right? ;)

John Donovan

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Re: CAMCOR Lokey Lab design
« Reply #6 on: September 30, 2015, 12:18:49 pm »
Attached (remember, you must be logged in as a member to see), are a number of building design and specification documents we utilized in our Lokey Lab building.

Please let me know if you need additional information or have any questions.
john

Thank you John! 

Did I do it right? ;)

I'm sure. Did I?
John J. Donovan, Pres. 
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"Not Absolutely Certain, Yet Reliable"

Probeman

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Re: CAMCOR Lokey Lab design
« Reply #7 on: October 27, 2015, 04:49:55 pm »
Our "facility tour" page is finally back up in case anyone is interested.

http://camcor.uoregon.edu/facility-tour

From the main page there are other facility links as well:

http://camcor.uoregon.edu/
The only stupid question is the one not asked!