Search found 680 matches

by Steven Sesselmann
22 Nov 2019, 09:24
Forum: Introductions >> Start Here !
Topic: One more aboard!
Replies: 1
Views: 15

Re: One more aboard!

Hello Sibir,

Welcome to the forum, good to hear that google finds us..

You are absolutely right, there is something about the nucleus of an atom that lies at the heart of physics, the amazing property that allows matter to convert into space via a gamma ray is the root of time itself.

Steven
by Steven Sesselmann
20 Nov 2019, 11:52
Forum: Detector drivers
Topic: Scintillix gamma spectrometer
Replies: 5
Views: 99

Re: Scintillix gamma spectrometer

Milos,

Thanks for sharing. Nice professional looking unit and a good looking spectrum.

Well done..

Steven
by Steven Sesselmann
20 Nov 2019, 11:46
Forum: Detector drivers
Topic: GS-Gamma-Recorder
Replies: 3
Views: 237

Re: GS-Gamma-Recorder

Conor, Yes you are quite right, the processor on the Pi4 runs quite hot, so I added copper heatsinks on the processor and the two other chips, and yes the peak current draw can reach 2.5-3A but the way I configured the recorder, it was running without screen, mouse and keyboard, so even with the GS-...
by Steven Sesselmann
15 Nov 2019, 09:45
Forum: Introductions >> Start Here !
Topic: Hello
Replies: 2
Views: 78

Re: Hello

Hi Can,

Thanks for the intro...

Please go to the user control panel (UCP) and add your name, location and any other info you want to share in the signature section, this will appear under every post you make. It helps members identify who is posting.

Thanks.
by Steven Sesselmann
15 Nov 2019, 09:19
Forum: Detector drivers
Topic: Charge Sensitive Preamplifier for CZT
Replies: 1
Views: 76

Re: Charge Sensitive Preamplifier for CZT

Can, There are a lot of designs for preamplifiers out there and everyone claims to have the better one, my approach is to keep it as simple as possible with as few parts as possible. The CZT circuit, is it your design or was the detector prewired with the 2.2pF and 12G resistor? Your preamplifier lo...
by Steven Sesselmann
15 Nov 2019, 08:23
Forum: Detector drivers
Topic: Charge Sensitive Preamplifier for CZT
Replies: 1
Views: 76

Re: Charge Sensitive Preamplifier for CZT

Hello lovequantum,

Thanks for telling us about your cool project, but could you please start in the introductions forum, read the rules and give yourself a brief intro.

Seems like the img tags are not working, better to attach images directly.

Steven
by Steven Sesselmann
11 Nov 2019, 11:54
Forum: Detector drivers
Topic: GS-Gamma-Recorder
Replies: 3
Views: 237

GS-Gamma-Recorder

I made this device for a client who wants to conduct areal gamma surveys by drone. GSGR(3).jpg It's essentially just a Raspberry-Pi-4 with a Python script that records a .wav sound file, but as these things go, the basic idea is simple, but final execution always ends up taking more time than expect...
by Steven Sesselmann
09 Nov 2019, 09:47
Forum: Spectrum
Topic: The Compton edge, don't let it fool you!
Replies: 1
Views: 80

The Compton edge, don't let it fool you!

While many of you will have a good understanding of this subject, some might find it rather confusing, so I thought it might be a good idea top open a discussion on the Compton edge. As always Wikipedia has a nice entry on the subject here: https://en.wikipedia.org/wiki/Compton_edge , but in any cas...
by Steven Sesselmann
08 Nov 2019, 13:12
Forum: Introductions >> Start Here !
Topic: Hello!
Replies: 3
Views: 88

Re: Hello!

Hi Leszek,

Welcome to the forum and thanks for posting the picture, is it your homeland or is it Chernobyl wasteland?

Please add your name and location in the signature section from within the user control panel.

Hope you find something of interest here..

Steven
by Steven Sesselmann
04 Nov 2019, 15:24
Forum: Shielding
Topic: 3D Analysis of Shielding
Replies: 0
Views: 60

3D Analysis of Shielding

Some of you might find this interesting.. I recently redesigned the GS-STANDUP-20 as it was difficult to manufacture. https://www.gammaspectacular.com/blue/gamma-spectroscopy/accessories/GS-STANDUP-20 The difficult part was fitting a copper and tin lining to the 90K elbow, so I figured it may as wel...