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Geo, I don’t see how normalizing accounts for flux? There are 2 different count times and 2 different activities? And a filter. The 1.6 mm Al “filter” will drop the flux by a factor of 0.5. The

Aaaaaaand there's this, with pictures! http://www.diyphysics.com/2013/01/20/80-%C2%B5ci-americium-241-sources-inside-old-pyrotronics-f35a-smoke-detectors/ [email protected]> wrote:

Also this in a document. Looks like the same incident, but was listed twice in a compiled accident report from Hanford or somewhere in the 90s. [email protected]> wrote:

I found this in an email form one of the old groups, by the illustrious Mr Schoner: There are two versions being sold. The F5-B has a steel ring inside that slips out once the unit is taken apart. It

Searching for Ag lines in the Pyro source, and how that relates to "bifurcated lines" from a previous question/post. Remove Browse … Cancel

What thickness Al filter are you using? Why normalize to the Am peak? Just use the same count time to see what the attenuation factor is for the same source. What is the Peak Time “rise

SILVER: Here are my working notes on the domestic (USA) residential units sold by Walmart, which by (USA) can contain "less than 1 uCi Am-241". This is part of the same series this last weekend, and

Geo Still haven’t figured out how to superimpose . I really have to learn that Anytime Taray. We can do by eMail or telephone, then you can later write a tutorial for the group. Geo To:

Nick, evidently there are 2 sources in each Pyro. This test only used the low activity ones, which are usually thrown away as useless by the folks that recycle them. NOT the 80X stronger big

Good catch Charles, I would rather it BE Ag actually, Geo

A question raised by Taray's comment about activity. If I recall, the Pyro units had two different sized foils in them. Which one are you using? Can activity differences be normalized by simply

Charles / Geo I agree it’s the Ag La1 and probably covering up any Ar. Also the Cu noted is actually the Au Ll with the Au Lg1 looking like it may be the low energy tail on the 13.9 Np

Obviously the Pyro is much cleaner. Mostly due to the added filters and other manufacturing differences between vintage low volume commercial productions vs. today's mass produced but more safety

GeoStill haven’t figured ?out?how to superimpose .I really have to learn that?BTW besides geometry ,the activity of both sources may not be the same.Taray

I believe your Ar is actually Ag. Charles

This is interesting! I haven't made time to run any tests yet on mine, sorry. I also have access to a Pyrotronics unit, so it would be interesting to test and compare data, and see how consistent

Analyzing raw spectrum from different Am exciter source. Brought about for the need of a clean(er) Am spectra preferably 59.5 keV alone or at least highly accentuated. First up: compare Domestic

Not that I think is water based. Better use silicone gel, especially "dielectric silicone gel" like we use for optical coupling PMTs. Can you get that there? It will be fine around HV. Also 100%

GeoAl and Cu excellent choices?like u said beforeI am using lead ?blocks mainly?but it still helps somewhat.It’s the only chunky thing I have borrowed from my lead castle. Only issue the surface