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Updated: Apr 5, 2026

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing

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Liquid Li based neutron source for BNCT and science application.

H Horiike¹, I Murata¹, T Iida¹

¹Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 565-0871, Japan.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine

|August 9, 2015

Summary

This summary is machine-generated.

Liquid lithium targets bombarded with protons produce neutrons for Boron Neutron Capture Therapy (BNCT). This method optimizes epithermal neutron generation while minimizing patient radiation dose.

Keywords:

Accelerator based neutron source BNCT Liquid lithium target Moderator assembly

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Area of Science:

Nuclear physics
Medical physics
Materials science

Background:

Liquid lithium (Li) is a versatile material with applications in neutron sources, space propulsion, and particle accelerators.
Boron Neutron Capture Therapy (BNCT) requires epithermal neutrons to minimize patient radiation dose.

Purpose of the Study:

To investigate the use of a liquid lithium target for generating epithermal neutrons for BNCT.
To optimize neutron production and moderation for medical applications.

Main Methods:

Utilizing the (7)Li(p,n)(7)Be threshold reaction at 1.88 MeV with 2.5 MeV protons.
Employing a high-velocity thin film flow of liquid lithium to manage heat dissipation.
Using electrostatic accelerators (Schnkel or tandem) for proton acceleration.
Implementing a dedicated moderator assembly to achieve epithermal neutron energies and suppress gamma rays.

Main Results:

Protons at 2.5 MeV penetrate 0.25 mm into the lithium layer, generating heat near the surface.
Neutrons are produced at 0.6 MeV and subsequently moderated to epithermal energies.
The system is designed to minimize accompanying gamma-ray emission.

Conclusions:

A liquid lithium target system is feasible for producing epithermal neutrons for BNCT.
The proposed method offers a way to generate neutrons with reduced patient dose.
High-velocity thin film flow is crucial for the stable operation of the liquid lithium target.