Cebr3 problem

Scintillation crystals, PMTs, voltage dividers etc...
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luuk
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Cebr3 problem

Post by luuk » 12 Aug 2022, 22:36

Hi all,
I have a small document about some problem I saw with CeBr3 crystal.
If interested pleae read the pdf.
Luuk
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CeBr3 problem.pdf
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Sesselmann
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Re: Cebr3 problem

Post by Sesselmann » 16 Aug 2022, 12:05

Luuk,

It was painful just reading your report, I can't imagine how the client must feel when his 2x2x2" CeBr3 turns into a pile of dust....

Steven

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NuclearPhoenix
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Re: Cebr3 problem

Post by NuclearPhoenix » 17 Aug 2022, 07:12

Hi Luuk,

that was a very interesting and also shocking read. Do you know why this happens specifically with CeBr3?

Matthias

luuk
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Re: Cebr3 problem

Post by luuk » 18 Aug 2022, 04:57

Hi Steven,
Yes and it was not one but 3 detectors, but these things happen.

Hi Matthias,
I don't know why it why it happens with these crystals and is not just CeBr3 but also LaBr3 and probably also with other high resolution crystal.
Luuk

James Luck
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Re: Cebr3 problem

Post by James Luck » 19 Oct 2022, 13:04

Oh F*ck just ya,
a strange thing i never thought about.

-Luck
James Luck
Lansing ILL, USA.
Luck Labs Instrumentation on Ebay
Hobbyist/ commercial.
Mostly detection and quantifying than identification.
Currently taking advantage of a Saintgobain 38S38.

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Madmax
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Re: Cebr3 problem

Post by Madmax » 14 Feb 2023, 15:15

Hi Luuk,
>The oxidation from NaI(Tl) can be removed simply by first letting the crystal dry

What do you mean in "let crystal dry"?
Thanks!

Maxim
Regards!
Maxim, ATOM project, Sydney, Australia.

luuk
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Re: Cebr3 problem

Post by luuk » 16 Feb 2023, 07:01

Hello Maxim,
To dry a NaI(Tl) crystal you will need a dry-box or dry-room with a humidity <3%.
If you look in previous post I wrote I think there is more info on refurbishing a crystal/detector.
About your questions about specific materials used to glue, couple or seal crystals all that information is unfortunately part of; Company Confidentiality.
Luuk

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