Search found 36 matches

by Boris
01 Mar 2019, 06:35
Forum: Detectors
Topic: Liquid Scintillation Counting
Replies: 6
Views: 1259

Re: Liquid Scintillation Counting

Hi Steven,

Long time no chat, I do have a crystal housing, with nothing inside (see att), the scintllator: BoDiPy in ethanol, no clue what it was used for.

Cheers, Boris.
by Boris
26 Apr 2018, 05:27
Forum: Spectrum
Topic: Depression uranium glass
Replies: 7
Views: 2371

Re: Depression uranium glass

Great work Peter,

So can we conclude that the Uo2 and the scott VG3 is missing the thorium234 peak around 60 KeV?
and this would not be possible with the other Th234 peak present...or its part of the xrf of the lead castle?
Cheers, Boris.
by Boris
24 Apr 2018, 06:43
Forum: Spectrum
Topic: Depression uranium glass
Replies: 7
Views: 2371

Re: Depression uranium glass

Great to see the fingerprints match Peter! that´s is a match...and Geoff...wow...that´s a mighty stack of uranium glass, cool with the black-lights.... the Vaseline glass is produced pre and past WW2, (I wonder if past WW2 glass has any U235, depending on or the ore is processed or not?) so if you c...
by Boris
23 Apr 2018, 17:29
Forum: Spectrum
Topic: Depression uranium glass
Replies: 7
Views: 2371

Re: Depression uranium glass

Note:

Isotope identification is not correct, the energies are calibrated correct.
The first right peak should probably be U238.
The next one cannot be U236
Any suggestion is more than welcome!

Cheers, Boris
by Boris
22 Apr 2018, 07:14
Forum: Spectrum
Topic: Depression uranium glass
Replies: 7
Views: 2371

Depression uranium glass

Not depressed, my GS-1100 is working fine!

It did have some problems, after a short I made, but today everything is working fine.
I did buy a ugly smal green glass bowl, it just fits the lead castle and that does give a nice spectrum...

Cheers, Boris.
by Boris
20 Apr 2018, 21:19
Forum: Detectors
Topic: 2"by 2" well detector
Replies: 4
Views: 2559

Re: 2"by 2" well detector

Steven, I ordered 6 op-amps, because the cost about 40 cents each...and hope for the best. Will check out the switch! Last option is de pc soundcard, no worries there it an old-timer dual core, so nothing is lost... The forum works fine now Steven, a few weeks ago I had many problems trying to conne...
by Boris
20 Apr 2018, 15:58
Forum: Detectors
Topic: 2"by 2" well detector
Replies: 4
Views: 2559

Re: 2"by 2" well detector

O,O Steven, the day before yesterday I shorted the gsPro, accidently, and I'm a bit afraid I blew one op de opamps out,very low output signal....ordered a handful of new opamps, and keep my fingers crossed... Hope they arrive today, and that is will fix my problem, any idea which one dies first, the...
by Boris
18 Apr 2018, 21:03
Forum: Detectors
Topic: 2"by 2" well detector
Replies: 4
Views: 2559

2"by 2" well detector

Hi all, Long time no post, but now the forum works fine and I had some time... Some time ago a box of PMT's and detectors was given to me, and i'm currently checking out what is usable. so I assembled a 2"well detector and am running some tests with it. my measurements are in de attached PDF, home i...
by Boris
19 May 2017, 02:26
Forum: General discussion
Topic: tritium
Replies: 14
Views: 5689

Re: tritium

hahaha, he's just enthusiastic & energetic and is pulling the public into the story, great show.
Yes the baloney detector, is as important as the gamma detector.
by Boris
18 May 2017, 02:24
Forum: General discussion
Topic: tritium
Replies: 14
Views: 5689

Re: tritium

wow, Schrammel that's quite a philosophical approach. it's quite simple when I went to school, life was easy. no internet. and we played outside a lot. in high-school we only had electrons, neutrons and protons, and photons.( no quarks and whatnot :)) all the trouble in the world was in countries fa...