Search found 792 matches

by Steven Sesselmann
02 Dec 2020, 08:08
Forum: Spectrum
Topic: Trinitite
Replies: 1
Views: 26

Re: Trinitite

Lukas,

Nice spectra. Interspec is quite helpful for finding peaks in a NAI spectrum.


Steven
by Steven Sesselmann
30 Nov 2020, 12:06
Forum: Detectors
Topic: Another LaBr3 detector
Replies: 3
Views: 54

Re: Another LaBr3 detector

I never got below 3.1% with my LaBr. Do you know how low it can go with an SBA PMT? https://capescint.com/product-category/scintillation-crystals/ This site sells SrI:Eu in case you're interested. With your linearity check with interspec it would be interesting to mention the polynomial correction ...
by Steven Sesselmann
29 Nov 2020, 21:43
Forum: Detectors
Topic: Another LaBr3 detector
Replies: 3
Views: 54

Another LaBr3 detector

Hi Guys, I have just been building another GS-1010-LaBr3 for a client and was doing some testing today, thought I should share the results. This build used a 1.5" Hamamatsu PMT and initially I struggled a bit with linearity, but it turned out I was running the voltage too high, I had to bring it dow...
by Steven Sesselmann
18 Nov 2020, 09:25
Forum: Detectors
Topic: RAM GENE-1 ERK Mk-I MK-II Rotem Industries
Replies: 1
Views: 89

Re: RAM GENE-1 ERK Mk-I MK-II Rotem Industries

ashakeshaft,

I approved your post because it is relevant, but our forum rules require the use of real names and a formal introduction in the proper forum.

I also recommend that you edit your message and remove your email address in favour of a private message (unless you like spam).

Steven
by Steven Sesselmann
17 Nov 2020, 21:54
Forum: Shielding
Topic: Lead Castle Rebuild And Detector Swap
Replies: 11
Views: 194

Re: Lead Castle Rebuild And Detector Swap

Lukas,

I must have missed this post, this looks like a very sexy setup, complete with LED lighting.

Very cool..

Steven
by Steven Sesselmann
15 Nov 2020, 07:28
Forum: Detectors
Topic: Voltage dividers for 14 pin PMT base
Replies: 3
Views: 2720

Re: Voltage dividers for 14 pin PMT base

Hi Rob,

The board pictured above is an old version, I have a newer better version in stock, I will email you the details.

Steven
by Steven Sesselmann
12 Nov 2020, 07:02
Forum: Introductions >> Start Here !
Topic: Hello from North Carolina in USA
Replies: 8
Views: 271

Re: Hello from North Carolina in USA

Rob, Sounds like two separate issues you have been dealing with... First of all the single and double wire issue, as far as I recall I always had a single/double wire selector switch on the GS, but on the PRO model it was relocated and put under the board. If you look under the unit there should be ...
by Steven Sesselmann
11 Nov 2020, 08:25
Forum: Detectors
Topic: Beryllium X-Ray Window
Replies: 0
Views: 97

Beryllium X-Ray Window

Anyone, I have to order a 2" Beryllium X-ray window from a supplier in China for a customer, but the minimum order qty is 5 pcs. Unfortunately at UD$ 250 each they are not exactly cheap, but if anyone needs one I am happy to pass it on at cost. 99% pure beryllium, 0.3 mm thick 50mm diameter. Cheers....
by Steven Sesselmann
10 Nov 2020, 13:09
Forum: Introductions >> Start Here !
Topic: Hello from North Carolina in USA
Replies: 8
Views: 271

Re: Hello from North Carolina in USA

Hi Rob,

Welcome back and thanks for the excellent introduction, it's great to hear that you still enjoy what you have spent a lifetime doing, I wish everyone was that lucky.

Steven
by Steven Sesselmann
01 Nov 2020, 22:08
Forum: Software
Topic: Unexpected good news....
Replies: 1
Views: 192

Unexpected good news....

Hi Guys, Today I discovered completely by accident that Geigerbot is working again on Apple's latest iOS release 13.0, this is really good news for those who want a portable solution. I designed the GS-USB-PRO to work with IOS devices, but as timing had it, Apple released a version of their OS which...