Search found 85 matches

by pilgrim
30 May 2019, 03:03
Forum: Spectrum
Topic: Fukushima Soil Sample "Reloaded" with both Cs134 Peaks
Replies: 9
Views: 829

Re: Fukushima Soil Sample "Reloaded" with both Cs134 Peaks

Hi Massimo, I think you're right but I'm not sure what you mean about the ratio.
You have a PM :-) !
by pilgrim
29 May 2019, 03:00
Forum: Spectrum
Topic: Fukushima Soil Sample "Reloaded" with both Cs134 Peaks
Replies: 9
Views: 829

Re: Fukushima Soil Sample "Reloaded" with both Cs134 Peaks

I couldn't help to make a test too, in the same way Massimo did :-) . This is the first spectrum with my faint Cs137 source (a Spark Gap TG36), 37000s 01-Cs137, SparkGap TG36, 36000s Background.JPG And this is the Fukushima Soil's spectrum + background subtraction. 82000s (45000s net.) 03-Fukushima ...
by pilgrim
16 May 2019, 05:23
Forum: Spectrum
Topic: Fukushima Soil
Replies: 22
Views: 2098

Re: Fukushima Soil

Hi Massimo, for a comparison here https://www.gammaspectacular.com/phpBB3 ... ?f=5&t=414 there is another thread about Fukushima soil samples.
by pilgrim
14 May 2019, 04:46
Forum: Spectrum
Topic: Uranophane
Replies: 2
Views: 342

Re: Uranophane

Excellent linearity!
by pilgrim
12 May 2019, 04:34
Forum: Spectrum
Topic: Autunite (Uranium Ore) Spectrum
Replies: 2
Views: 367

Re: Autunite (Uranium Ore) Spectrum

Good work, Massimo!
A took a spectra of a Pitchblende sample few days ago, in my lead shield but It wasn't good as yours.
I have to try the PRA's background subtraction, it seems to work very well!
by pilgrim
05 May 2019, 00:27
Forum: Spectrum
Topic: Introduction and Rain Spectrum
Replies: 3
Views: 420

Re: Introduction and Rain Spectrum

Hi Massimo, welcome to the forum. The only thing I could suggest you is to make this test collecting the first rain after a longer period of good weather, in order to have a greater concentration of radon in the paper towels. This is an old test I made with an electrostatically charged balloon. The ...
by pilgrim
06 Apr 2019, 02:37
Forum: Software
Topic: PRA 22 Hold on to your seats..
Replies: 7
Views: 1052

Re: PRA 22 Hold on to your seats..

Steven, I've just tried the new version, but there's something I don't understand. I followed your suggestions, I put 384 kHz - 16 Bits - left Channel, then I unticked samples 1 to 10 and 50 to 60, but look at the spectrum attached, it's quite strange isn't it? The source is fukushima's soil. PRA22_...
by pilgrim
15 Mar 2019, 22:51
Forum: Spectrum
Topic: welding electrode
Replies: 1
Views: 343

Re: welding electrode

Very good resolution and linearity!
by pilgrim
02 Feb 2019, 03:23
Forum: Software
Topic: Theremino MCA or Beqmoni ?
Replies: 12
Views: 2193

Re: Theremino MCA or Beqmoni ?

I agree with you about the multiple windows, but for the rest I think it's a great software, with a professional approach to the pulse analysis and to the spectra.
I suggest you to make yourself use it.
by pilgrim
01 Feb 2019, 05:29
Forum: Software
Topic: Theremino MCA or Beqmoni ?
Replies: 12
Views: 2193

Re: Theremino MCA or Beqmoni ?

Yes you can, but if you calibrate using the energy equalizer, the next spectra you will take with other isotopes won't be so linear as the first...