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Easy polonium-beryllium neutron source: assembly, disassembly, and discussion

publicado em 25/05/2011

A 5-millicurie sealed Po-210 source leased commercially for antistatic applications is brought into contact with a piece of bulk beryllium metal in the proximity of a He-3 neutron detector, with the resulting neutrons being detected. This assembly is taken apart and reassembled several times in the course of the video, as we watch the neutron counter respond. My objective is to illustrate the prolific Be(a,n) reaction in a concrete embodiment, which I suggest is a (relatively) safe, easy, and inexpensive route to neutrons for contemporary amateur and school physics projects. The "Nuclespot" polonium source is available for lease without a specific license in the United States; contact Amstat Industries. It costs about $175 / year. Bulk beryllium metal is routinely available on eBay in convenient sizes for this type of construction; my piece ran about $50. (NEVER attempt to cut or machine beryllium!) Finally, some evidence is shown about the efficacy of adding more moderator plastic.

Neutron Generators using Particle Accelerators

Neutron Generators using Particle Accelerators

How to create a neutron generator using a small, linear particle accelerator. My Patreon Page is at https://www.patreon.com/EugeneK [...]
  • 06/05/2016
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John Carpenter | History, Development and Application of Neutron Sources

John Carpenter | History, Development and Application of Neutron Sources

John M. Carpenter, retired senior physicist and Argonne Distinguished Fellow, talks about sources of neutrons for slow-neutron scattering research. Not about nuclear [...]
  • 19/02/2014
  • 13h58
Neutristor

Neutristor

The Neutristor is an ultra-compact, disposable, neutron generator 1,000 times smaller than the closest competitor, for use in energy exploration, and medical [...]
  • 19/06/2012
  • 19h32
Easy polonium-beryllium neutron source: assembly, disassembly, and discussion

Easy polonium-beryllium neutron source: assembly, disassembly, and discussion

A 5-millicurie sealed Po-210 source leased commercially for antistatic applications is brought into contact with a piece of bulk beryllium metal in [...]
  • 25/05/2011
  • 05h07
Discovery Of Neutrons

Discovery Of Neutrons

Neutrons The neutron is a subatomic particle with no net electric charge and a mass slightly larger than that of a proton. [...]
  • 05/05/2010
  • 05h31
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