Electron radiography using a table-top laser-cluster plasma accelerator

被引：30

作者：

Bussolino, G. C. ^{[1
]}

Faenov, A. ^{[2
,3
]}

Giulietti, A. ^{[1
]}

Giulietti, D. ^{[1
,4
]}

Koester, P. ^{[1
]}

Labate, L. ^{[1
,4
]}

Levato, T. ^{[1
,5
,6
]}

Pikuz, T. ^{[2
,3
]}

Gizzi, L. A. ^{[1
,4
]}

机构：

[1] CNR, Ist Nazl Ott, ILIL, I-56100 Pisa, Italy

[2] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia

[3] Japan Atom Energy Agcy, Quantum Beam Technol Directorate, Kizugawa, Kyoto 6190215, Japan

[4] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

[5] Univ Roma Tor Vergata, Dipartimento Ingn Ind, I-00133 Rome, Italy

[6] AV CR, Fyzikalni Ustav, Vvi, Prague 18221 8, Czech Republic

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2013年 / 46卷 / 24期

关键词：

RADIOCHROMIC FILM; BEAMS; RADIATION;

D O I：

10.1088/0022-3727/46/24/245501

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We explore the use of a laser-based electron gun for applications in transmission electron radiography and microscopy at electron energies up to 2 MeV. This new approach holds the promise to overcome some limitations of existing conventional electron guns at high beam energies especially for ultrafast applications. Our laser-electron gun is based on titanium-sapphire, ultrashort pulse lasers to drive electron acceleration in a plasma. The focused laser pulse travels in a tailored Ar gas target and accelerates electrons to MeV energy in less than a millimetre. As a first application, we use this electron beam to perform contact transmission electron radiography of cm-scale thin and thick samples. We obtain transmission electron radiography of organic and inorganic dense objects over a field of view more than 50 mm wide. The images are well exposed and show details of both thick and thin samples. The spatial resolution for the current geometrical configuration was found to be approximately 60 mu m and was limited by geometrical effects combined with the intrinsic detector resolution and diffusion in the sample.

引用

页数：8

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