نتایج جستجو برای: boron neutron capture therapy

تعداد نتایج: 829590  

C. Geng, C. Gong, D. Shu, H. Yu, S. Fatemi, W. Shao, X. Tang,

Background: Boron neutron capture therapy (BNCT) is a binary radiotherapy combining biochemical targeting with neutron irradiation. However, monitoring the boron distribution is a fundamental problem in BNCT. Prompt gamma rays emitted by boron capture reaction can be used to address the issue. Materials and Methods: The general-purpose Monte Carlo toolkits Geant4 and MCNP were used for the simu...

Journal: :Chemical communications 2014
Thomas M Klapötke Burkhard Krumm Magdalena Rusan Jesse J Sabatini

Green-light-emitting pyrotechnic compositions based on tris(2,2,2-trinitroethyl)borate (TNEB) and boron carbide have been investigated. The best performing formulations were found to be insensitive to various ignition stimuli, and exhibited very high spectral purities and luminosities compared to previously reported green-light-emitting formulations.

Journal: :The journal of the Japanese Practical Surgeon Society 1981

2009
V. V. Voronin

In this short note we discuss the possibility to get the constraint on the parameters of short range pseudomagnetic interaction of free neutron with matter from the crystal-diffraction experiment. It is demonstrated that for range of λ < 10 −6 m this constraint can be a few order better than in any other method.

Background: The amount of average dose enhancement in tumor loaded with 10B may vary due to various factors in boron neutron capture therapy.Objective: This study aims to evaluate dose enhancement in tumor loaded with 10B under influence of various factors and investigate the dependence of this dose enhancement on neutron spectra changes.Material and Methods: In this simulation stud...

Journal: :Nanotechnology 2010
Chen Li Yuan Tian Chao Hui Jifa Tian Lihong Bao Chengmin Shen Hong-Jun Gao

Large area patterned boron nanocones with low turn-on electric field of 2.8 V microm(-1) and low threshold electric field of 3.8 V microm(-1) were synthesized by a pre-manipulation to pattern the catalyst with a grid template as mask. The good field emission performance of patterned boron nanocones arise from the decreased screening effect and a favorable orientation of the nanocones. These res...

2014
María E. Capoulat María S. Herrera Daniel M. Minsky

A project aimed at the development of an accelerator facility devoted to Boron Neutron Capture Therapy (BNCT) is ongoing at the National Atomic Energy Commission of Argentina [1]. In a first stage of development, the accelerator will be capable of delivering proton or deuteron beams of 30 mA at about 1.4 MeV which is suitable for neutron production through the 9Be(d,n) reaction. In this context...

Journal: :Molecules 2016
Chee Huei Lee Shiva Bhandari Bishnu Tiwari Nazmiye Yapici Dongyan Zhang Yoke Khin Yap

A comprehensive overview of current research progress on boron nitride nanotubes (BNNTs) is presented in this article. Particularly, recent advancements in controlled synthesis and large-scale production of BNNTs will first be summarized. While recent success in mass production of BNNTs has opened up new opportunities to implement the appealing properties in various applications, concerns about...

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