Chemical Dosimetry in the „water Window“: Ferric Ions and Hydroxyl Radicals Produced by Intense Soft X Rays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00541067" target="_blank" >RIV/61389021:_____/20:00541067 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/20:00531919

Výsledek na webu

<a href="https://meridian.allenpress.com/radiation-research/article-abstract/193/4/372/434597" target="_blank" >https://meridian.allenpress.com/radiation-research/article-abstract/193/4/372/434597</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1667/RR15520.1" target="_blank" >10.1667/RR15520.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chemical Dosimetry in the „water Window“: Ferric Ions and Hydroxyl Radicals Produced by Intense Soft X Rays

Popis výsledku v původním jazyce

A standard Fricke dosimeter was used to measure the absorbed dose via the oxidation yields of Fe3+ ions in an aqueous environment induced by soft X rays within the „water window” spectral range. We also exploited the property of a neutral solution containing terephthalic acid as a tool for selective detection of OH radicals. Both dosimetric systems were irradiated using the experimental pulsed laser-plasma soft X-ray source as well as conventional 1.25-MeV gamma rays. Radiation chemical yields of Fe3+ ions and OH radicals were determined to be (5.13 ± 0.94) × 10-1 μmol·J-1 (4.95 ± 0.91 100eV-1) and (2.33 ± 0.35) × 10-2 μmol·J-1 (0.23 ± 0.03 100eV-1), respectively. Measurements were supported by Monte Carlo simulations to estimate the linear energy transfer of the water window radiation. The simulation results are in good agreement with expected linear energy transfer of ions inducing the same Fe3+ ion and OH radical radiation chemical yield.

Název v anglickém jazyce

Chemical Dosimetry in the „water Window“: Ferric Ions and Hydroxyl Radicals Produced by Intense Soft X Rays

Popis výsledku anglicky

A standard Fricke dosimeter was used to measure the absorbed dose via the oxidation yields of Fe3+ ions in an aqueous environment induced by soft X rays within the „water window” spectral range. We also exploited the property of a neutral solution containing terephthalic acid as a tool for selective detection of OH radicals. Both dosimetric systems were irradiated using the experimental pulsed laser-plasma soft X-ray source as well as conventional 1.25-MeV gamma rays. Radiation chemical yields of Fe3+ ions and OH radicals were determined to be (5.13 ± 0.94) × 10-1 μmol·J-1 (4.95 ± 0.91 100eV-1) and (2.33 ± 0.35) × 10-2 μmol·J-1 (0.23 ± 0.03 100eV-1), respectively. Measurements were supported by Monte Carlo simulations to estimate the linear energy transfer of the water window radiation. The simulation results are in good agreement with expected linear energy transfer of ions inducing the same Fe3+ ion and OH radical radiation chemical yield.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Radiation Research

ISSN

0033-7587

e-ISSN

—

Svazek periodika

193

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

372-382

Kód UT WoS článku

000527741300008

EID výsledku v databázi Scopus

2-s2.0-85082759335