Study on secondary electron suppression in compact D–D neutron generator
| العنوان: | Study on secondary electron suppression in compact D–D neutron generator |
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| المؤلفون: | Xiao-Long Lu, Chang-Qi Liu, Junrun Wang, Zimin Zhang, Ma Zhanwen, Zeen Yao, Xiao-Hou Bai, Yu Zhang, Zheng Wei, Huang Zhiwu |
| المصدر: | Nuclear Science and Techniques. 30 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Nuclear and High Energy Physics, Materials science, 010308 nuclear & particles physics, 01 natural sciences, Secondary electrons, Ion, Magnetic field, Nuclear Energy and Engineering, Neutron generator, Deuterium, Physics::Plasma Physics, Secondary emission, Electric field, 0103 physical sciences, Neutron, Atomic physics, Nuclear Experiment, 010306 general physics |
| الوصف: | A compact D–D neutron generator, with a peak neutron yield of D–D reactions up to 2.48 × 108 n/s is being developed at Lanzhou University in China for application in real-time neutron activation analysis. During tests, the problem of back acceleration of secondary electrons liberated from the neutron production target by deuterium ions bombardment was encountered. In this study, an electric field method and a magnetic field method for suppressing secondary electrons are designed and experimentally investigated. The experimental results show that the electric field method is superior to the magnetic field method. Effective suppression of the secondary electrons can be achieved via electrostatic suppression when the bias voltage between the target and the extraction-accelerating electrode is > 204 V. Furthermore, the secondary electron emission coefficient for the mixed deuterium ion (D1+, D2+, and D3+) impacting on molybdenum is estimated. In the deuterium energy range of 80–120 keV, the estimated secondary electron emission coefficients are approximately 5–5.5 for the mixed deuterium ion glancing incidence of 45° and approximately 3.5–3.9 for the mixed deuterium ion normal incidence. |
| تدمد: | 2210-3147 1001-8042 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::81e72fa9a46cd6fa2f4eca7a365bcd92Test https://doi.org/10.1007/s41365-019-0596-0Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........81e72fa9a46cd6fa2f4eca7a365bcd92 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22103147 10018042 |
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