Search found 117 matches

by sgt_bear
26 Mar 2025, 08:43
Forum: The lounge
Topic: Australian Border Force clamps down on amateur scientist
Replies: 1
Views: 14437

Re: Australian Border Force clamps down on amateur scientist

That's really a shame for the guy and I hope he can make a good deal, but the problem with laws might be overwhelming or complex to most hobbyists, also the regulations can be quite confusing and hard to understand. I did quite the read and asked officials a few questions to understand the laws in m...
by sgt_bear
28 Feb 2025, 08:56
Forum: Spectrum
Topic: 313CC Hytron tubes - Kr85 ? Ra 226 ?
Replies: 5
Views: 16870

Re: 313CC Hytron tubes - Kr85 ? Ra 226 ?

I would go also say Ra-226. I have a copy of an unofficial source of vacuum tubes with radioactive isotopes ("Cliffs Radioactive Tube List") and there the 313CC / CB are both listed as Kr-85 and Ra-226. Its common that vacuum tubes use different isotopes, for example there are 0A2WA tubes ...
by sgt_bear
12 Sep 2024, 04:02
Forum: Spectrum
Topic: Loss of a good resource.
Replies: 7
Views: 31389

Re: Loss of a good resource.

If you really like the site/layout, you can still can try to access it via waybackmachine: http://web.archive.org/web/20240120182017/http://nucleardata.nuclear.lu.se/toi/ Don't know if everything works, but on the first look a lot is there List of snapshots: ( http://web.archive.org/web/202406010000...
by sgt_bear
30 Jan 2024, 08:40
Forum: Detectors
Topic: Saying goodbye to all of you!
Replies: 8
Views: 7419

Re: Saying goodbye to all of you!

Hi Luuk,

I also wish you all the best. Take care and enjoy your retirement! :)

Greetings from Switzerland,
Jonathan
by sgt_bear
30 Aug 2023, 05:06
Forum: Physics, electronics and beyond
Topic: SIPT: My interactive periodic table
Replies: 2
Views: 35004

SIPT: My interactive periodic table

Hi folks, Since most of you are interested in science, I've decided to share my newest project. Besides radiation, my interests are in general science, electronics, and vintage devices. Around a year ago I 'v started to collect elements for a periodic table collection. A periodic table collection is...
by sgt_bear
26 May 2023, 04:17
Forum: Software
Topic: Is there SW to Label the Peaks with the Isotope's Name
Replies: 6
Views: 6359

Re: Is there SW to Label the Peaks with the Isotope's Name

Interspec also lets you label the peaks, you even can put an user-label on a peak if you want.
Also you can display reference peaks, for example the thin red lines in my image are "reference peaks" for CS-134
by sgt_bear
01 Feb 2023, 07:45
Forum: General discussion
Topic: Lost Cs-137 capsule in Australia
Replies: 4
Views: 6877

Lost Cs-137 capsule in Australia

Hi folks, I've read in our local news that a capsule containing Cs-137 was lost in Australia while being transported from a mine. More can be read here: [broken link removed - Steven] One thing that I notice, is that our newspapers always mention that the capsule is very hard to find and probably wi...
by sgt_bear
02 Aug 2022, 05:59
Forum: The lounge
Topic: Jewelery from Scintillation Crystals
Replies: 1
Views: 14076

Jewelery from Scintillation Crystals

Hi folks, I follow a few mineral collectors' Instagram sites and therefore get recommended posts from similar topics, a few days ago I stumbled over a page that seems to be a gem cutter. Whats kinda special here, is that they used Scintillation Crystals to make "Gemstones" from them. Mainl...
by sgt_bear
29 Jul 2022, 07:12
Forum: Detectors
Topic: CapeSym CSI-14x25c-SIPM-T and GS-USB-PRO
Replies: 8
Views: 6866

Re: CapeSym CSI-14x25c-SIPM-T and GS-USB-PRO

SIPM and Scintillation crystals are temperature sensitive, depending on used crystal type. This might be an issue for a portable identifier device or similar application because that instrument should be usable in various temperatures, for lab application it might be not a huge problem. I've found t...
by sgt_bear
07 May 2022, 02:57
Forum: Detectors
Topic: Semiconductor Survey Meters
Replies: 5
Views: 7621

Re: Semiconductor Survey Meters

My guess is that most modern manufactured Personal Radiation Detectors use SIPM Technology, especially those with Spectroscopic functions. But since these devices are usually sold to a limited market there is not much information about the interior of these devices. One issue about SIPM is their tem...