Search found 110 matches

by Peter-1
17 Sep 2019, 23:23
Forum: Spectrum
Topic: Menzenschwand, Germany
Replies: 8
Views: 120

Re: Menzenschwand, Germany

Hello,
I have 2 pieces from menzenschwand with very nice needles from Uranophan.
Image
Image
The pulsrate was 240 CPS with background, background only 16 CPS.
Peter
by Peter-1
04 Sep 2019, 17:51
Forum: Spectrum
Topic: Just How Radioactive St.Peter's Square Is?
Replies: 2
Views: 110

Re: Just How Radioactive St.Peter's Square Is?

Massimo,
this is a really great report about St. Peter's Square. Thanks for the good documentation.

Greetings
Peter
by Peter-1
26 Jul 2019, 22:57
Forum: Spectrum
Topic: Trinitite Sample 2 - From the First Nuclear Bomb Explosion
Replies: 6
Views: 205

Re: Trinitite Sample 2 - From the First Nuclear Bomb Explosion

Hello, Months ago I measured a sample with 4 grams of trinitite. The background was 17 CPS with the 4 grams of trinitite, then 26 CPS. Measuring time over 12 hours. In the diagram the background has already been subtracted. Unfortunately, I have no source where I could buy something else. 2018_10_25...
by Peter-1
08 Jul 2019, 02:14
Forum: Spectrum
Topic: Lava Stone Pendant - Thorium 232
Replies: 3
Views: 263

Re: Lava Stone Pendant - Thorium 232

Hi Massimo, that's great fun. I'm feeling much better by laughing. and so you stay young and do not age. In January, I saw the part and wanted to know how strong it radiates and whether Thorium is clearly visible. Here is my result. Background 15.7 CPS , with Quantum P. i have 53.8 CPS. Peter https:...
by Peter-1
06 Jul 2019, 06:52
Forum: Spectrum
Topic: Granite
Replies: 5
Views: 305

Re: Granite

Hello,
the background is 15.8 CPS and with granite i have 25.8 CPS.
Peter
by Peter-1
06 Jul 2019, 01:26
Forum: Spectrum
Topic: Granite
Replies: 5
Views: 305

Re: Granite

Hi, the overall weight of the granite blocks is 220 gram.
Peter
by Peter-1
05 Jul 2019, 01:40
Forum: Spectrum
Topic: Granite
Replies: 5
Views: 305

Granite

Hello, I found these nice granite cubes in a shop in Germany ( 5€ only). They should serve as ice cubes. Since granite always contains some uranium and thorium, I wanted to know how well it is detectable. Here is my attempt. Granit-3.jpg 2019_06_25-Granit-Würfel.png All expected lines are clearly vi...
by Peter-1
21 May 2019, 03:54
Forum: Spectrum
Topic: Fukushima Soil
Replies: 22
Views: 1940

Re: Fukushima Soil

It has left me no peace
and so I have measured again. The resolution is certainly not bad, but I can not see more with my 2 "x 2" NaI.
2019_05_19-Fukushima.png
2019_05_19-Fukushima.png (96.23 KiB) Viewed 699 times
Peter
by Peter-1
16 May 2019, 04:02
Forum: General discussion
Topic: Radiodating using NaI(Tl)
Replies: 11
Views: 1218

Re: Radiodating using NaI(Tl)

hello,
if I understand correctly, zircon contains the elements uranium and thorium with their decay products. So you should see these lines. Or are there other lines? That has to be measured well.
Peter
by Peter-1
14 May 2019, 02:51
Forum: Spectrum
Topic: Uranophane
Replies: 2
Views: 323

Uranophane

my last measurement
with a mineral uranophane from menzenschwand in the black forest, germany.
The slight decay intensities could not be resolved.
Uranophan-10.jpg
Uranophan-2019.jpg
Peter