Alpha Gloveboxes: Shielding for Alpha Particle Interactions

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In summary, gamma radiation is a form of energy that comes from radioactive material. It is high energy and can cause damage to cells. Alpha particles interact with atoms to create gammas, and high activity produce greater quantities of low intensity gammas.
  • #1
Andronicus1717
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Why do alpha gloveboxes require so much shielding? Do alpha particle interactions create high energy electrons which produce Bremsstrahlung radiation or is it the high activity producing greater quantities of low intensity gammas?
 
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  • #3
Andronicus1717 said:
Why do alpha gloveboxes require so much shielding? Do alpha particle interactions create high energy electrons which produce Bremsstrahlung radiation or is it the high activity producing greater quantities of low intensity gammas?
Andronicus,

Actually, alpha gloveboxes DON'T have much shielding.

http://en.wikipedia.org/wiki/Image:Glovebox.jpg

If you are dealing with something that produces a lot of gammas; then you don't work with it in a
glovebox - you work with it in a "hot cell" or "cave"; and the gamma source is handled with remote
manipulators - those "mechanical arms".

http://www.et.anl.gov/sections/hfs/facilities/aghcf.html

http://en.wikipedia.org/wiki/Hot_cell

http://itu.jrc.ec.europa.eu/index.php?id=30

You wouldn't want to handle a high activity gamma source in a glovebox, because all you have
between your hands and the source is the gloves.

"So much shielding" is a relative term. What do you mean by "so much shielding". A few inches
of metal is NOT "much shielding" if you are talking about gammas. A few inches of metal will handle
betas, and certainly alphas.

For gammas, you need several inches of lead, or a few feet of concrete. You don't see gloveboxes
shielded with many feet of concrete.

Dr. Gregory Greenman
Physicist
 
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  • #4
I asked around work and I was just confused with my terms. "Alpha gloveboxes" is a term not commonly used and "alpha boxes," the term I meant are essentially hot cells with an arbitrary name specific to a certain facility.

I had incorrectly assumed alpha gloveboxes meant Pu-238 gloveboxes and the sheilding was in fact the heavily lead for the alpha boxes. The danger with Pu-238 gloveboxes are in fact neutrons from the O-18 & O-17 (alpha,n) reactions. This is partially mitigated through a heat treatment replacing the oxygen with O-16, and inerting the gloveboxes to prevent back contamination of O-18 & O-17.

Again sorry for my initial confusion.
 
  • #5
Pu-238 is found in the form of PuO2, which is used in RTG's. Is that the application for which one needs boxes?

This might be of interest - http://fti.neep.wisc.edu/neep602/SPRING00/lecture5.pdf
 

Related to Alpha Gloveboxes: Shielding for Alpha Particle Interactions

1. What are Alpha Gloveboxes and how do they work?

Alpha Gloveboxes are specialized laboratory equipment designed to provide shielding for alpha particle interactions. They consist of a sealed enclosure with thick walls made of materials that can block or absorb alpha particles. Gloveboxes also have built-in gloves that allow scientists to handle materials inside the enclosure without exposing themselves to alpha particles.

2. Why is shielding necessary for alpha particle interactions?

Alpha particles are highly energetic and can be harmful to living organisms if exposed to them. Shielding is necessary to protect scientists from the harmful effects of alpha particles, such as radiation damage to cells or tissues.

3. What materials are commonly used for the walls of Alpha Gloveboxes?

The most commonly used materials for the walls of Alpha Gloveboxes are lead, steel, and acrylic. These materials have high densities and can effectively block or absorb alpha particles.

4. How are Alpha Gloveboxes different from other types of shielding?

While other types of shielding, such as beta or gamma shielding, are designed to block different types of radiation, Alpha Gloveboxes are specifically designed to shield against alpha particles. They are often used in combination with other types of shielding to provide comprehensive protection.

5. What are the potential risks of working with alpha particles?

The main risk associated with working with alpha particles is exposure to radiation, which can cause damage to cells and tissues. Other potential risks include contamination of the laboratory or samples, as alpha particles can be emitted from certain materials and can be difficult to detect and contain.

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