Initial tests of Al-26 fluoride target matrix on MILEA AMS system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00544941" target="_blank" >RIV/61389005:_____/21:00544941 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.nimb.2021.07.008" target="_blank" >https://doi.org/10.1016/j.nimb.2021.07.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nimb.2021.07.008" target="_blank" >10.1016/j.nimb.2021.07.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Initial tests of Al-26 fluoride target matrix on MILEA AMS system

Popis výsledku v původním jazyce

In this study, the possibility of using a superhalogenide ion AlF4- extracted from Na3AlF6 based target materials for Al-26/Al-27 measurements by Accelerator Mass Spectrometry (AMS) was investigated. Determination of Al-26 by usual mass spectrometric methods is generally hampered by the presence of the isobar Mg-26. However, the AMS method enables significant suppression of this interference, particularly by negative ion formation. After initial current tests in a caesium sputtering ion source of the Tandetron system, performance of the fluoride materials was analysed on the MILEA AMS system at ETH Zurich. The AlF4- current was used to evaluate the performance of the respective samples. Additives as PbF2 were tested to increase the extracted ion currents and samples containing MgF2 were used to investigate the presence of isobaric ions. Subsequently, the ionization efficiency of AlF4- was determined by recording the Al-27(2+) current on the high energy side and the signals of Al-26(2+) were investigated with the gas ionization detector.

Název v anglickém jazyce

Initial tests of Al-26 fluoride target matrix on MILEA AMS system

Popis výsledku anglicky

In this study, the possibility of using a superhalogenide ion AlF4- extracted from Na3AlF6 based target materials for Al-26/Al-27 measurements by Accelerator Mass Spectrometry (AMS) was investigated. Determination of Al-26 by usual mass spectrometric methods is generally hampered by the presence of the isobar Mg-26. However, the AMS method enables significant suppression of this interference, particularly by negative ion formation. After initial current tests in a caesium sputtering ion source of the Tandetron system, performance of the fluoride materials was analysed on the MILEA AMS system at ETH Zurich. The AlF4- current was used to evaluate the performance of the respective samples. Additives as PbF2 were tested to increase the extracted ion currents and samples containing MgF2 were used to investigate the presence of isobaric ions. Subsequently, the ionization efficiency of AlF4- was determined by recording the Al-27(2+) current on the high energy side and the signals of Al-26(2+) were investigated with the gas ionization detector.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/EF16_019%2F0000728" target="_blank" >EF16_019/0000728: Výzkum ultrastopových izotopů a jejich využití v sociálních a environmentálních vědách urychlovačovou hmotnostní spektrometrií</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Nuclear Instruments & Methods in Physics Research Section B

ISSN

0168-583X

e-ISSN

1872-9584

Svazek periodika

503

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

45-52

Kód UT WoS článku

000684984200006

EID výsledku v databázi Scopus

2-s2.0-85111342996