{"id":20485,"date":"2019-05-27T09:52:32","date_gmt":"2019-05-27T07:52:32","guid":{"rendered":"http:\/\/www.eli-beams.eu\/research\/x-ray-sources\/plasma-x-ray-sources-pxs\/"},"modified":"2021-06-17T14:43:06","modified_gmt":"2021-06-17T12:43:06","slug":"plasma-x-ray-sources-pxs","status":"publish","type":"page","link":"https:\/\/www.eli-beams.eu\/research\/x-ray-sources\/plasma-x-ray-sources-pxs\/","title":{"rendered":"Laser-driven Plasma X-ray Source (PXS) Beamline"},"content":{"rendered":"

Thus, both line emission radiation of the specific target material and (continuous) Bremsstrahlung forms the energy spectrum of a PXS. ELI\u2019s PXS will offer 8 keV Cu-Ka, 11 keV Bi-La, 24 keV In-Ka, and\/or 77 keV Bi-Ka radiation. The X-ray pulse duration – inherit from the driving laser pulse duration – ranges in the hundreds of femtoseconds.<\/p>\n

The photons are emitted from the micrometer-sized plasma volume out of the vacuum chamber through an X-ray transparent window (material: Beryllium or Polyimide foil) and are focused by grazing incidence or multilayer optics onto the sample. These Montel-Optics based monochromators will be installed to generate small-focused X-ray pulses for high-spatial resolution spectroscopy and imaging. And poly-capillary optics are deployed to support absorption spectroscopy experiments at the Von-Hamos Installation.\u00a0Both spectroscopy and imaging experiments will be carried out by the PXS endstation T-REX, comprising a high-precision spectrometer with Eulerian cradle and zero-noise EIGER X detector. To enhance furthermore the dynamic spectroscopy capability, continuous X-ray tubes with Cu and Mo targets are available and ready for PXS\/T-REX operation.<\/p>\n

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 <\/p>\n

Figure 1: Laser focus spot in front of Cu tape target (on guiding spools). The high-energetic laser pulse induces an air breakdown generating a plasma spot. Cu-Ka Line emission radiation at 8 keV and Bremsstrahlung (continuum) is not present due to the absence of the Cu target.<\/em><\/p>\n

But the salient feature of the incoherent PXS is the fact that X-radiation is emitted in an ultrashort pulse with a typical temporal length of hundreds of femtoseconds (1e-13 s). Such short pulses will allow scientists to resolve the kinetics of chemical reactions on atomic scales via ultrafast hard X-ray diffraction and X-ray absorption spectroscopy techniques.<\/p>\n

The inherent synchronization of the X-ray pulse to the driving IR laser will make advanced optical pump-hard X-ray probe methods feasible to study a variety of complex systems such as artificial photosynthetic systems or photoactive biological molecules.<\/p>\n

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 <\/p>\n

Figure 2: Concept of PXS Beamline (here Bi\/In target PXS) for operation with T-REX (Time-Resolved Experiments) end station. Montel and poly-capillary optics will focus the plasma spot onto the sample stage of the Eulerian craddle.<\/em><\/p>\n

 <\/p>\n

PXS Team:<\/strong><\/p>\n

\u0110\u00f4ng Du Mai<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Thus, both line emission radiation of the specific target material and (continuous) Bremsstrahlung forms the energy spectrum of a PXS….<\/p>\n","protected":false},"author":1,"featured_media":22393,"parent":20480,"menu_order":124,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/pages\/20485"}],"collection":[{"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/comments?post=20485"}],"version-history":[{"count":23,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/pages\/20485\/revisions"}],"predecessor-version":[{"id":29540,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/pages\/20485\/revisions\/29540"}],"up":[{"embeddable":true,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/pages\/20480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/media\/22393"}],"wp:attachment":[{"href":"https:\/\/www.eli-beams.eu\/wp-json\/wp\/v2\/media?parent=20485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}