Hello from UK

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drkhelliott@gmail.com
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Hello from UK

Post by drkhelliott@gmail.com » 19 Feb 2020, 01:25

Retired Senior Lecturer in the School of Physics and Astronomy, University of Birmingham, UK
Previously an Astronomer at the Anglo-Australian Observatory, NSW, Australia.

Live in the Peak District of Derbyshire, UK and interested in gamma ray detectors and gamma ray spectroscopy.

I have used a Pocket Geiger solid state detector used on Iphone and Ipad for years.

www.radiation-watch.co.uk

I found some surplus EMI Photomultiplier tubes and with a NaI scintillator from Ebay (Ukraine) built a Gamma Ray Spectrometer using Theremino Power supply and Theremino USB interface.

The home built head worked ok, but had poor resolution so I bought a refurbished Scionix 38B57 from iRad.

I then designed and built some electronics to use the old detector just as a detector with audio clicks and rate meter on an analog meter.

I've bought a Cs137 source from Ebay CK1098-1 Valve Tube, Spark Gap, Raytheon also a Co60 source from Spectrum Techniques in USA (Oak Ridge)

The Scionix 38B57 from iRad works well but at a voltage which gives the best resolution of about 6% seems to be quite non linear. I've done a calibration using various sources and wrote some code to linearise the data.

Be nice to get it to be linear in the first place so I'm probably going to buy a GS-USB-PRO.

I had a PET scan and recorded the 511 keV line. Also a MUGA scan which used Technetium-99m
and recorded the 140keV line from that.
Dr Ken Elliott
School of Physics and Astronomy
University of Birmingham
UK

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Svilen
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Re: Hello from UK

Post by Svilen » 19 Feb 2020, 01:57

Welcome to the forum Dr. Elliott and thank you for your detailed introduction.
I moved your post to the "Introductions" forum.
Svilen

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drkhelliott@gmail.com
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Re: Hello from UK

Post by drkhelliott@gmail.com » 19 Feb 2020, 02:48

Thanks a lot
Ken
Dr Ken Elliott
School of Physics and Astronomy
University of Birmingham
UK

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Sesselmann
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Re: Hello from UK

Post by Sesselmann » 19 Feb 2020, 09:52

Hello Ken,

Welcome to the forum, I have a keen interest in both physics and cosmology, I also live in Australia, so a few things in common there without even touching on radiation detection.

Great to have you on board.

Steven

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