Project of the borehole neutron generator for the direct determination of oxygen and carbon by activation method

2nd Conference on Plasma & Laser Research and Technologies

Yu Bogdanovich, B.^1 ; Vovchenko, E.D.^1 ; Iliinskiy, A.V.^2 ; Isaev, A.A.^1 ; Kozlovskiy, K.I.^1 ; Nesterovich, A.V.^1 ; Senyukov, V.A.^1 ; Shikanov, A.E.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

Institute of Geophysical and Radiation Technologies, International Academy of Sciences of Higher School, Atarbekova street 4/B, Moscow

107076, Russia^2

关键词: Accelerating tube;    Accelerating voltages;    Direct activation;    Direct determination;    Laser-plasma source;    Magnetic electrons;    Neutron generators;    Radial acceleration;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/747/1/012007/pdf
DOI  :  10.1088/1742-6596/747/1/012007

来源: IOP

【 摘 要 】

The paper deals with application features of borehole neutron generator (BNG) based on the vacuum accelerating tube (AT) with laser-plasma ion source for determination of oxygen isotope16O and carbon isotope12C by direct activation. The project of pulsed BNG for realization of an activation method in the conditions of natural presence of productive hydrocarbons is offered. The diode system with radial acceleration, magnetic electron insulation and laser-plasma source of deuterons at the anode in a sealed-off vacuum accelerating tube is applied. The permanent NdFeB magnet with induction about 0.5 T for produce the insulating magnetic field in the diode gap is proposed. In the experiments on the model of BNG with the accelerating voltage source (≈350 kV), performed by the scheme of Arkadiev-Marx generator, the output of (d, d) neutrons was ∼107pulse-1.