Table-Top Water-Window Microscope Using Z-Pinching Capillary Discharge Source

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00335870" target="_blank" >RIV/68407700:21340/19:00335870 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/16:00301203 RIV/68407700:21460/16:00301203 RIV/68407700:21460/19:00335870

Výsledek na webu

<a href="https://www.euvlitho.com/2019/S70.pdf" target="_blank" >https://www.euvlitho.com/2019/S70.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Table-Top Water-Window Microscope Using Z-Pinching Capillary Discharge Source

Popis výsledku v původním jazyce

We present a new design of a compact transmission water-window microscope based on nitrogen plasma induced by the Z-pinching capillary discharge, operating at wavelength λ = 2.88 nm. The source was built in-house, plasma is generated by a current discharge through alumina capillary filled with nitrogen gas. A ceramic capacitor bank is a pulse charged by a Marx-Fitch generator and switched by self-breakdown spark-gap. Average photons flux is 5.5 x 10^13  photons/(sr x line x pulse), and the plasma spot has a circular shape with diameter of 360 µm at FWHM. The spectrum of soft X-ray radiation produced by the source is filtered by a titanium filter to achieve monochromatic radiation with wavelength λ = 2.88 nm. Filtered radiation is focused by an ellipsoidal nickel-coated condenser mirror. We used a Fresnel zone plate to create an image of a sample transmission on an SXR-sensitive CCD camera. To assess the resolution of the microscope, we imaged a standard sample – copper mesh. The achieved spatial resolution is 75 nm at half-pitch. The images of Desmodesmus cells (Green algae) are presented as well as the description of the sample preparation process.

Název v anglickém jazyce

Table-Top Water-Window Microscope Using Z-Pinching Capillary Discharge Source

Popis výsledku anglicky

We present a new design of a compact transmission water-window microscope based on nitrogen plasma induced by the Z-pinching capillary discharge, operating at wavelength λ = 2.88 nm. The source was built in-house, plasma is generated by a current discharge through alumina capillary filled with nitrogen gas. A ceramic capacitor bank is a pulse charged by a Marx-Fitch generator and switched by self-breakdown spark-gap. Average photons flux is 5.5 x 10^13  photons/(sr x line x pulse), and the plasma spot has a circular shape with diameter of 360 µm at FWHM. The spectrum of soft X-ray radiation produced by the source is filtered by a titanium filter to achieve monochromatic radiation with wavelength λ = 2.88 nm. Filtered radiation is focused by an ellipsoidal nickel-coated condenser mirror. We used a Fresnel zone plate to create an image of a sample transmission on an SXR-sensitive CCD camera. To assess the resolution of the microscope, we imaged a standard sample – copper mesh. The achieved spatial resolution is 75 nm at half-pitch. The images of Desmodesmus cells (Green algae) are presented as well as the description of the sample preparation process.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LTT17015" target="_blank" >LTT17015: Výzkum v rámci Mezinárodního centra hustého magnetizovaného plazmatu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů