What is the neutron source and energy used for BNCT and how is it made suitable?

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Neutron sources for Boron Neutron Capture Therapy (BNCT) typically include reactors and accelerators rather than traditional sources. The optimal neutron energy for BNCT is low energy, as it enhances boron capture probability, but achieving a well-collimated beam to target tumors presents a challenge. This conflict between low energy and beam collimation is a key consideration in BNCT applications. The discussion references the OPAL reactor in Australia as an example of utilizing both 'cold' and 'thermal' neutrons for this purpose. Further exploration of these topics can be found in related articles on BNCT and neutron sources.
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I've read MIT explanations on BNCT and some other articles but Istill have some questions about it!(I want to know these in details) 1st of all which neutron sources is used for BNCT? Which neutron energy is suitable for BNCT and why? which methods are used to make neutron' energy suitable for BNCT?
I'd appreciate if you introduce some useful articles regarded to my question!

Thanks:smile:
 
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BNCT, as far as I know, doesn't use a source. They use either reactors or accelerators.

Energy is a bit of a sticky point - you want low energy neutrons to increase the boron capture probability, but you also want a well-collimated beam to point at the tumor. These two desires conflict with each other at some level.
 


Here's an example from Australia's OPAL reactor on 'cold' and 'thermal' neutrons.

http://www.ansto.gov.au/discovering_ansto/anstos_research_reactor/opal_capabilities
 
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