Pb and Cu shielding

How to build the perfect shield for your measurements? Discuss it here!
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Peter-1
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Joined: 07 Oct 2016, 01:45
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Pb and Cu shielding

Post by Peter-1 » 14 Oct 2016, 01:33

Hello,
here is my PMT head with the cristal and the shielding with Pb and Cu.
Meßkopf-1.jpg
Meßkopf-1.jpg (92.83 KiB) Viewed 2393 times
Meßkopf-2.jpg
Meßkopf-2.jpg (95.01 KiB) Viewed 2393 times
The crystal with the dimensions 1"3/4 x 2" is surrounded of a protective case made from aluminum. The PMT is made from EMI , Type 9656B (an old one). The whole measuring head PMT with preamplifier and crystal comes from Siemens. If there is a better shielding there so I am very glad about an idea.

Peter

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Peter-1
Posts: 108
Joined: 07 Oct 2016, 01:45
Location: Germany
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Re: Pb and Cu shielding

Post by Peter-1 » 16 Oct 2016, 19:18

Hallo
Now I can show that the copper shielding helps the X-ray peak well to suppress.
Pb-X-Ray.jpg
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Peter

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