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Abstract: The excitation function of the 8Li(d, t)7Li reaction was directly measured using 8Li beam irradiating a deuterated polyethylene target at center-of-mass system beam energies () between 0.3 and 1.2 MeV. This is the first cross section measurement of the above reaction below , covering Gamow peaks for of astrophysical interest. A broad resonance-like structure was observed at around . The astrophysical reaction rate deduced from the present result is far larger than the previously reported values estimated from extrapolation of data observed at higher energies, roughly by one order of magnitude at about . [Copyright &y& Elsevier]

Boron Neutron Capture Therapy (BNCT) is a radiotherapy for the treatment of intractable cancer. In BNCT precise determination of 10B concentration in whole blood sample before neutron irradiation of the patient, as well as accurate neutron dosimetry, is crucial for control of the neutron irradiation time. For this purpose ICP-AES and neutron induced prompt γ-ray analysis are generally used. In Ibaraki Neutron Medical Research Center (iNMRC), an intense proton beam will be accelerated up to 8 MeV, which can also be used for Charged Particle Activation Analysis (CPAA). Thus, in this study, we apply the CPAA utilizing the proton beam to non-destructive and accurate determination of 10B concentration in whole blood sample. A CPAA experiment is performed by utilizing an 8 MeV proton beam from the tandem accelerator of Nuclear Science Research Institute in Japan Atomic Energy Agency. The 478 keV γ-ray of 7Be produced by the 10B(p, α)7Be reaction is used to quantify the 10B in human blood. The 478 keV γ-ray intensity is normalized by the intensities of the 847 keV and 1238 keV γ-rays of 56Co originating from Fe in blood. The normalization methods were found to be linear in the range of 3.27 μg 10B/g to 322 μg 10B/g with correlation coefficients of better than 0.9999. • A charged particle activation utilizing an 8 MeV proton beam is applied for the determination of 10B in human blood. • The 478 keV γ-ray of 7Be produced by the 10B(p, α)7Be reaction is used to quantify the 10B. • 56Fe can be used as a reference to determine the concentration of 10B in whole blood samples. • The 511 keV γ-ray background can be reduced effectively by cooling of more than 5 h. • Optimization of irradiation and measurement conditions will be performed to reduce analysis time and uncertainty. [ABSTRACT FROM AUTHOR]