Ask Wolfram Alpha about half value layer

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Steven Sesselmann
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Ask Wolfram Alpha about half value layer

Post by Steven Sesselmann » 04 Apr 2018, 11:45

Hi Guys,

Did you know that you can ask Wolfram Alpha to calculate the half value layer of lead ?

Some of these online tools make life too easy..

http://www.wolframalpha.com/input/?i=Ha ... ma+rays%3F
lead layer.png
Half value layer
Steven Sesselmann | Sydney | Australia | gammaspectacular.com | groundpotential.org | beejewel.com.au |

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pilgrim
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Re: Ask Wolfram Alpha about half value layer

Post by pilgrim » 04 Apr 2018, 14:30

I didn't know Wolfram Alpha : thank you!
Daniel, Italy

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Geoff
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Re: Ask Wolfram Alpha about half value layer

Post by Geoff » 05 Apr 2018, 07:31

That's a much better way to explain why I use a 10mm thick tungsten shield in addition to my 24mm thick lead shield around my detector.
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Geoff Van Horn

Anchorage and Deadhorse Alaska

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Geoff
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Re: Ask Wolfram Alpha about half value layer

Post by Geoff » 05 Apr 2018, 10:01

I made a thing!
a thing.PNG
Geoff Van Horn

Anchorage and Deadhorse Alaska

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Steven Sesselmann
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Re: Ask Wolfram Alpha about half value layer

Post by Steven Sesselmann » 05 Apr 2018, 11:54

Nice work Geoff,

Great for designing a shield, one can easily calculate the best options with available materials. If you don't have any Cd or Sn you can effectively compensate for this by using more copper or something like that.

Steven
Steven Sesselmann | Sydney | Australia | gammaspectacular.com | groundpotential.org | beejewel.com.au |

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pilgrim
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Re: Ask Wolfram Alpha about half value layer

Post by pilgrim » 05 Apr 2018, 14:30

Hi Geoff,
do you put the tungsten layer inside or outside the lead?
Daniel, Italy

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Geoff
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Re: Ask Wolfram Alpha about half value layer

Post by Geoff » 08 Apr 2018, 14:31

My tungsten is inside of the lead. For the detector shield its lead-tungsten-copper for the source shield its lead-tin-copper
Geoff Van Horn

Anchorage and Deadhorse Alaska

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Peter-1
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Re: Ask Wolfram Alpha about half value layer

Post by Peter-1 » 14 Apr 2018, 18:20

hello,
I have made a small program to calculate the absorption of some materials.
Image
Peter

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