X-ray emission as a diagnostic from pseudospark-sourced electron beams

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:335

Article

Bowes, D.¹  Yin, H.¹  He, W.¹  Zhang, L.¹  Cross, A. W.¹  Ronald, K.¹  Phelps, A. D. R.¹  Chen, D.²  Zhang, P.²  Chen, X.³  Li, D.³ 

[1] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

[2] Capital Normal Univ, Sch Math Sci, Comp Tomog Lab, Beijing 100048, Peoples R China

[3] Queen Mary Univ London, Dept Elect Engn, London E1 4NS, England

关键词: Pseudospark;    Gas discharges;    X-ray emission;    Electron beams;   

DOI  :  10.1016/j.nimb.2014.06.008

来源: Elsevier

【 摘 要 】

X-ray emission has been achieved using an electron beam generated by a pseudospark low-pressure discharge and utilised as a diagnostic for beam detection. A 300 A, 34 kV PS-sourced electron beam pulse of 3 mm diameter impacting on a 0.1 mm-thick molybdenum target generated X-rays which were detected via the use of a small, portable X-ray detector. Clear X-ray images of a micro-sized object were captured using an X-ray photodetector. This demonstrates the inducement of proton induced X-ray emission (PIXE) not only as an indicator of beam presence but also as a future X-ray source for small-spot X-ray imaging of materials. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

Free