Re: [Phys-L] leaking Cs-Ba generator

[Bernard Cleyet <bernard@cleyet.org>]

One may make their own using exempt uranyl nitrate as the mother of daughter Pa with a lab. half life. Directions are in my site.   The U Wa instruction (U=>Pa) is sl. incorrect.  See the UW automation PDF.   

As stated, all in one bottle, no elution, etc.

To save your "cow"   I suggest rinsing well the joint, dry and seal by fusion, i.e. a soldering gun or iron.  

And yes, improper eluting will remove all the Cs in one go, as did the LD mgr. and later "let go"  at an unnamed institution. 

bc demo'ed his Pa source at UCB in Fall '03 NCN-AAPT mtng.


http://www.cleyet.org/Misc._Physics/radio-sources&info./U=%3ePa%20(half%20life)/


On 2013, Sep 30, , at 12:17, Bill Nettles <bnettles@uu.edu> wrote:

> Is anyone else having a problem with their Cs-Ba elution generator [from Spectrum Techniques in Oak Ridge ... they are the main supplier for all the equipment houses] developing a leak around the outside collar, and having the collar slip?  This is the 2nd generator that has done this.  I think it is a glue problem.  The 30-yr Cs is beginning to escape, and that's a problem.  I would hate for these things to have to go away because of a poor design.  It's the only license-exempt generator that I can find.
>
> If you have experienced leaking, please write Spectrum Techniques and let them know.  They have told some people that it is related to improper elutant, but I have used ONLY the elutant they provided in the kit.
>
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