Re: [CDV700CLUB] Re: Homemade Lucas Cell Progress Report 1.02
- OOOOOOps and I still have to learn to count ;~) thanks Charlie.
Charlie Thompson <w5cdt@...> wrote:
Your giant PMT has a 14 pin socket right? (not 13 pin).
--- In CDV700CLUB@yahoogroups.com, Tracy Albert <thealbert1@y...>
> Review: A lucas Cell is a 1 Liter air volume, ZnS(AG)
Scintillation Detector for detecting Alphas from Radon Decay. The
Air must be Clean, Free of Radon Daughters, Filtered to 0.01 Micron,
Dry, and scrubbed of H2SO4.
> The cell should be Purged at 7 times the volume with a new Sample.
> Update: I have fitted the Plexiglas window to the PMT, and Built
the light Seal at the PMT-Cell Junction. And I have Battery operated
Air pump for an underground detection unit designed for Explosive
gas and H2S detection.
> That was really allot of Precision work but I am Confidant it will
> Next Step is Drilling and tapping the fittings. I am going to fit
1/8"-27 NPT threads into the cell. also Each fitting will have its
> To Coat the cell with ZnS(AG), 3M Tech Support has Recommended,
Spray 90 adhesive.It will hold the powder on the surface but not
cover the powder over time.
> It was my 1st thought but its best to ask. 3M 1-800-362-3550.
> Also Lock tight, 1-800-562-8483.
> Optical Grease, Nova Guard, 1-800-626-6527
> I am looking for a 13 pin socket for the PMT, I have been digging
through my pile to no avail. the first voltage divider will go in
> I also need to find in line gas filters, Driers, and akali
Scrubbers for 1/8" Tubing.
> The first test of the completed cell and Circuit will be on the
Eberline ESP-1 and recorded in CPM.
> ALL INPUT AND HELP IS REALLY COOL!
> Best To All.
> Tracy Albert, Saginaw, Michigan.USA
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