Search found 70 matches

by sgt_bear
20 Nov 2018, 18:11
Forum: Detectors
Topic: Not something you see everyday..
Replies: 2
Views: 791

Not something you see everyday..

I thought i had to share this one, you don't see such a monstrous detector everyday!
If only i had (alot of) spare money...

4x4" NaI(Ti) Detector on ebay:
https://www.ebay.com/itm/Bicron-Gamma-S ... 3990438352
by sgt_bear
11 Nov 2018, 23:15
Forum: Detectors
Topic: CZT Detector help
Replies: 3
Views: 958

CZT Detector help

Hello folks, I recently purchased a CZT detector from ebay. Its marked "EV products, B1829 - Division of II-VI Incorporated" I only found this data about it https://www.kephis.com/kephis/czt.htm Providing schematic and details, but no information about the "HV" voltage that needs to applied. Various...
by sgt_bear
13 Apr 2018, 01:54
Forum: General discussion
Topic: Neutron tube?
Replies: 4
Views: 1917

Re: Neutron tube?

Looks like these tubes use also deuterium for creating neturons, generators like this seem used for oil well logging, there are quite a few different companies who make them For example this: http://www.starfireindustries.com/uploads/2/2/1/1/22111816/datasheet_ngen-100b_welllogging_rev02-17.pdf sche...
by sgt_bear
08 Apr 2018, 20:51
Forum: General discussion
Topic: Neutron tube?
Replies: 4
Views: 1917

Neutron tube?

Hello, I follow quite an extensive list of searches on ebay, including the radiation related ones. Yesterday i saw an interesting item, sadly its already gone. https://www.ebay.com/itm/Vintage-impulse-neutron-generator-tube-NT-25-by-Isotop-NOS-with-datasheet/112922029832?ssPageName=STRK%3AMEBIDX%3AI...
by sgt_bear
19 Feb 2018, 22:13
Forum: Resources
Topic: Isotope & Europe
Replies: 3
Views: 3319

Re: Isotope & Europe

Yes it really differs from country to country and the carrier itself. For example UPS has a license here for transporting dangerous items, but our postal service has not. The problem in my case would have not been customs, they would be fine, but after customs, the postal service would refuse transp...
by sgt_bear
16 Feb 2018, 05:03
Forum: Resources
Topic: Isotope & Europe
Replies: 3
Views: 3319

Isotope & Europe

I decided to write this post for people who live in europe and want to order man-made isotope sources (like disk from spectrum techniques). When i wanted to order my first isotopes i thought it would be fairly easy, but luckily i reseached and found some rules that would have cost me alot of trouble...
by sgt_bear
16 Feb 2018, 04:34
Forum: General discussion
Topic: Gamma Spectroscopy Group in Yahoo?
Replies: 1
Views: 1500

Gamma Spectroscopy Group in Yahoo?

Hello Folks,

I remember that there was a Yahoo group about gamma spectroscopy / radiation related. As far as i can remember that group was quite active. Sadly i cant find any info on google.

Maybe some of you here were members there, and could tell me what happend to this group?
by sgt_bear
14 Feb 2018, 07:37
Forum: Spectrum
Topic: Kr-85 Spectrum from Vacuum Tube
Replies: 1
Views: 1155

Kr-85 Spectrum from Vacuum Tube

One of my other hobbies (vintage electronics) brought me to a online vacuum stube store, where i spotted tubes with radiation warnings. So i purchased all of the Western Electric 427A tubes. A quick search brought up that these tubes had 4uCi of the Kr-85 in them (manufactured August/1966). Kr-85 is...
by sgt_bear
02 Feb 2018, 04:32
Forum: Shielding
Topic: Incorrect shielding
Replies: 3
Views: 2617

Re: Incorrect shielding

I guess since the Betatron had nothing to do with spectrometry, there wasn't a real need to use a super pure material. Maybe there is just a inpurity in the tungsten? Tungsten Ore is found along with granite, and there is also the possibility of inpurity from melting / handling. Also, the tungsten c...
by sgt_bear
05 Jan 2018, 08:43
Forum: Detectors
Topic: How to hook up this CsI crystal?
Replies: 5
Views: 3553

Re: How to hook up this CsI crystal?

Hi Karl, the image is missing..