A new high quality X-ray source for Cultural Heritage

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• 作者：Philippe Walter ; Aless ; ro Variola ; Fabian Zomer ; Marie Jaquet ; Alex ; re Loulergue
• 关键词：X-rays ; Chemical analysis ; Imaging techniques ; Cultural heritage ; Inverse Compton source
• 刊名：Comptes Rendus Physique
• 出版年：2009
• 出版时间：September 2009
• 年：2009
• 卷：10
• 期：7
• 页码：676-690
• 全文大小：551 K

文摘

Compton based photon sources have generated much interest since the rapid advance in laser and accelerator technologies has allowed envisaging their utilisation for ultra-compact radiation sources. These should provide X-ray short pulses with a relatively high average flux. Moreover, the univocal dependence between the scattered photon energy and its angle gives the possibility of obtaining a quasi-monochromatic beam with a simple diaphragm system. For the most ambitious projects the expected performance takes into account a rate of 10¹²–10¹³ photons/s, with an angular divergence of few mrad, an X-ray energy cut-off of few tens of keV and a bandwidth ΔE/E1–10 % . Even if the integrated rate cannot compete with synchrotron radiation sources, the cost and the compactness of these Compton based machines make them attractive for a wide spectrum of applications. We explore here the interest of these systems for Cultural Heritage preservation. To cite this article: P. Walter et al., C. R. Physique 10 (2009).