Gamma Spectrometry Forum

Thanks Paul, I may have to get creative with the Mu metal shielding. The I did mean the coax, I already have high quality wire for the internals, thanks for the pointer on those. I was concerned about how I would attach the smaller bottle to the larger bottle, but peening the edge over inside and th...

Thanks Steven, I appreciate the link. What are your thoughts about the Mu metal shielding? Do I need to shield the whole PMT or just the thinner section? Shielding around a step like that would not be fun....

This is my first detector and learning lots along the way, and wondered if I could get some answers to a few questions. I am trying to keep the budget low but the quality high, we will see how that progresses.... I have an R6233 PMT which is coupled to a 63mm x 63mm NaI/Ti detector, which seems to b...

Thanks Steven, I look forward to learning more and contributing what I am able.

Tim.

Thanks Pieter, I appreciate you clarifying there. I will look into the radpads.

Has anyone tried to use Magnetite ore for shielding? It is much cheaper than lead. A Korean team did some tests with magnetite concrete for shielding and found that it was 92% as effective as a slab shield. http://www.kns.org/jknsfile/v3/A04803286265.pdf?PHPSESSID=a078b088435d92a883ed144a4b241782 Th...

Hi all, my name is Tim and I am an Australian, living on the Mid North Coast of New South Wales. I am a blacksmith, knifemaker, researcher, Bible translation editor, electronics guy, inventor, former Ham and many other things :) I built my first geiger counter from parts when I was living in the US ...