The Effects of Boron Neutron Capture Therapy on the Lungs in Recurrent Breast Cancer Treatment.

Boron neutron capture therapy (BNCT) has predominantly been performed for brain tumors or head and neck cancers. Although BNCT is known to be applicable to breast cancer, it has only been performed in a few cases involving thoracic region irradiation with reactor-based BNCT systems. Thus, there are very few reports on the effects of BNCT on the thoracic region and no reports of BNCT for breast cancer with accelerator-based BNCT systems.

Evaluation of the energy resolution of a prompt gamma-ray imaging detector using LaBr(Ce) scintillator and 8 × 8 array MPPC for an animal study of BNCT.

To develop boron neutron capture therapy (BNCT), it is desired to measure B concentration and obtain a two-dimensional B distribution in animal studies. In this research, we develop a prompt gamma-ray imaging detector to measure B distribution using a 50 mm × 50 mm x 10 mm LaBr(Ce) scintillator and a multi-pixel photon counter (MPPC). To measure a two-dimensional B distribution, the 478 keV gamma-ray emitted from B(n,α)Li reaction should be measured with the discrimination from 511 keV background gamma rays in each MPPC.

Microdosimetric quantities of an accelerator-based neutron source used for boron neutron capture therapy measured using a gas-filled proportional counter.

Boron neutron capture therapy (BNCT) is an emerging radiation treatment modality, exhibiting the potential to selectively destroy cancer cells. Currently, BNCT is conducted using a nuclear reactor. However, the future trend is to move toward an accelerator-based system for use in hospital environments.

Ultrafast Nanocrystalline-TiO2 (B)/Carbon Nanotube Hyperdispersion Prepared via Combined Ultracentrifugation and Hydrothermal Treatments for Hybrid Supercapacitors.

Anisotropically grown (b-axis short) single-nano TiO2 (B), uniformly hyper-dispersed on the surface of multiwalled carbon nanotubes (MWCNT), was successfully synthesized via an in situ ultracentrifugation (UC) process coupled with a follow-up hydrothermal treatment. The uc-TiO2 (B)/MWCNT composite materials enable ultrafast Li(+) intercalation especially along the b-axis, resulting in a capacity of 235 mA h g(-1) per TiO2 (B) even at 300C (1C = 335 mA g(-1) ).