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초강력 레이저 과학 연구단
초강력 레이저과학 연구단
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Characterization of x-ray lens for use in probing high energy density states of matter

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Title
Characterization of x-ray lens for use in probing high energy density states of matter
Author(s)
Mabey, P; Hartley, NJ; Doyle, HW; Cross, JE; Ceurvorst, L; Savin, A; Rigby, A; Oliver, M; Calvert, M; I Jong Kim; Riley, D; Norreys, PA; C.H. Nam; Carroll, DC; Spindloe, C; Gregori, G
Publication Date
2015-04
Journal
JOURNAL OF INSTRUMENTATION, v.10, no., pp.P04010 -
Publisher
IOP PUBLISHING LTD
Abstract
By using polycapillary lenses to focus laser-produced x-ray sources to high intensities, an improvement in signal-to-noise ratio can be achieved. Here the He-alpha line emission produced by driving a titanium backlighter target is focused by a polycapillary lens and the output characterized. The x-ray spot is measured to have a peak intensity of 4.5 x 10(7) photons, with a total photon count of 8.8 x 10(8) in 0.13 +/- 0.01 mm(2). This setup is equivalent to placing the backlighter target 3 mm from the sample with a 600 mu m diameter pinhole. The polycapillary lens enables the placement of the backlighter target at a much larger distance from the sample to be studied and therefore has the ability to greatly improve the signal-to-noise ratio on detectors. We demonstrate this with two simple diffraction experiments using pyrolytic graphite and polycrystalline aluminium
URI
https://pr.ibs.re.kr/handle/8788114/2051
ISSN
1748-0221
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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(Characterization)Dr. IJ Kim Journal of Instrumentation_2015.pdfDownload

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