Search found 95 matches

by Svilen
12 Dec 2019, 02:06
Forum: Detectors
Topic: HPGe detector back to life after long sleep
Replies: 8
Views: 98

Re: HPGe detector back to life after long sleep

Good job and great luck to get this detector, Janni! So nice looking spectra, but well, HPGE is another story. Thanks for sharing this.
by Svilen
12 Dec 2019, 00:43
Forum: Resources
Topic: Simple Thorium Linearity Check with Excel
Replies: 2
Views: 34

Re: Simple Thorium Linearity Check with Excel

I did it in some more manual way long ago , but that's handy, thanks for posting it.
by Svilen
11 Dec 2019, 07:50
Forum: Spectrum
Topic: Refurbishing project of a large 5”x3” NaI(Tl) detector.
Replies: 4
Views: 69

Re: Refurbishing project of a large 5”x3” NaI(Tl) detector.

Yes, "delighted" is the right word :) Outstanding work from Luuk, simply beyond any description! Thank you very much for that! Special thanks to Tom for providing the PMT and for the "friendly hobby price"! Thanks to Luuk's colleagues that helped too! Unbelievable results, having in mind the startin...
by Svilen
03 Dec 2019, 01:16
Forum: Spectrum
Topic: A Day in Fukushima - Gamma Spectroscopy
Replies: 15
Views: 230

Re: A Day in Fukushima - Gamma Spectroscopy

Very nice reports Massimo, both of them! Thanks for taking the time to share this experience and the pictures too. "Fear and misconceptions made far more victims than radiation around here" - this is a really important point and I also hope, that publications like this one, counter fight the radioac...
by Svilen
19 Nov 2019, 22:37
Forum: Detector drivers
Topic: Scintillix gamma spectrometer
Replies: 5
Views: 145

Re: Scintillix gamma spectrometer

A good looking system that also gives very good results - well done! Maybe you can write a bit about the shielding too? It looks interesting on the picture.
by Svilen
09 Nov 2019, 06:29
Forum: Spectrum
Topic: Flossenbürger Granit
Replies: 1
Views: 63

Re: Flossenbürger Granit

Nice one. You always get interesting samples, Peter :)
by Svilen
07 Nov 2019, 22:46
Forum: Introductions >> Start Here !
Topic: Hello!
Replies: 3
Views: 117

Re: Hello!

Welcome, Leszek! It seems you have a lot of field practice and exciting experiences from the Zone to share. I guess Leszek is short from Lehoslav, but maybe you still can add the location to your profile or signature.
by Svilen
05 Nov 2019, 01:31
Forum: Detectors
Topic: Mirion PDS 100G, Spectrometric Personal Radiation Detector
Replies: 67
Views: 4050

Re: Mirion PDS 100G, Spectrometric Personal Radiation Detector

Hi Tom, Congratulations! I respond too late to your already solved problem, but just to mention it for possible future users: I had the same problem like you, correctly set COM port number, discoverable device, but no initialization and communication was possible. I tried everything that came to my ...
by Svilen
25 Oct 2019, 05:32
Forum: General discussion
Topic: Visual effect of long term radiation exposure on the acrylic glass of a watch
Replies: 7
Views: 302

Re: Visual effect of long term radiation exposure on the acrylic glass of a watch

Nice collection Peter, these tubes are quite expensive even used or nonfunctional. From the stand I see that it is also well presented. I've seen the old ones often darkened, but totally forgot about them in this topic, thanks for raising this point. In case you don't care much about the discolorati...
by Svilen
25 Oct 2019, 00:52
Forum: General discussion
Topic: Visual effect of long term radiation exposure on the acrylic glass of a watch
Replies: 7
Views: 302

Re: Visual effect of long term radiation exposure on the acrylic glass of a watch

Reading Geoff's post, reminded me that thoriated lenses of old photo objectives get yellowish in time and users found that exposing them to strong sunlight reverses the discoloration - annealing helps in this case too. ontgelen_1403.jpg This picture and some more information and comparison before/af...