KNAW-Agenda Grootschalige Onderzoeksfaciliteiten : Smart*Light: a Dutch table-top synchrotron light source

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Abstract

Immediately after its discovery in 1895, X-ray radiation started to make an enormous contribution to society. Fields like medical diagnostics, materials inspection and protein crystallography rely heavily on the imaging and analytical capabilities of X-rays. Notwithstanding major developments over the past
century, there are three important intrinsic limitations to X-ray tubes, the conventional X-ray sources 2/25 used in the lab: their relative low intensity, the poor coherence of radiation and the selective availability of X-ray energies. Since the late 1970s synchrotron sources have become available, which offer highbrilliance, coherent and energy-tunable X-rays, but these are only available at a limited number of specialized facilities worldwide, providing scarce beam time – at a high cost – outside the scientists’ lab.
There is no synchrotron source in The Netherlands.
Here, we propose to develop and apply a revolutionary, compact, affordable and miniaturized alternative to a synchrotron facility – a tabletop Inverse Compton Scattering (ICS) source. The physical basis is the ICS process in which photons from a laser beam are bounced off a relativistic electron beam, turning
them into X-ray photons through the relativistic Doppler effect. Already described theoretically decades ago, the enabling technology necessary to materialize such a source, has only very recently matured into robust components. Ultra-low-emittance electron guns, compact X-band accelerator technology and high-power pulsed lasers have become available only recently. This now brings the ICS source for in-situ applications of high-energy X-rays within our reach. In combination with the newest X-ray detectors (Medipix) the tabletop ICS source will constitute an extremely sensitive, on-site, non-destructive tool for imaging and analysis. It will combine (sub)micrometer spatial resolution with high analytical precision in structural and spectroscopic applications. We plan to use the ICS source where it will be most effective: in a clinical environment for medical imaging, inside the materials scientist’s laboratory for work on new materials and in the museum conservation studio for the study of important artwork. Our plan includes key partners, covering both the instrumental development and the relevant user communities, as well as academic and industrial stakeholders.
Original languageEnglish
Place of PublicationAmsterdam
PublisherKoninklijke Nederlandse Akademie van Wetenschappen (KNAW)
Number of pages25
Publication statusPublished - 31 Oct 2016

Bibliographical note

Eervolle vermelding van de KNAW-commissie

Keywords

  • X-ray analysis, materials science, medical radiology, cultural heritage

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