Nondestructive assay of fluorine in geological and other materials by instrumental photon activation analysis with a microtron

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00442891" target="_blank" >RIV/61389005:_____/15:00442891 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/15:00444039

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nimb.2014.09.023" target="_blank" >http://dx.doi.org/10.1016/j.nimb.2014.09.023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nimb.2014.09.023" target="_blank" >10.1016/j.nimb.2014.09.023</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nondestructive assay of fluorine in geological and other materials by instrumental photon activation analysis with a microtron

Popis výsledku v původním jazyce

The present paper examines possibilities of non-destructive determination of fluorine, mainly in minerals, rocks and coal, by instrumental photon activation analysis (IPAA) using the MT-25 microtron. The fluorine assay consists of counting the positron-electron annihilation line of F-18 at 511 key, which is a product of the photonuclear reaction F-19(gamma,n)F-18 and a pure positron emitter. The assay is complicated by the simultaneous formation of other positron emitters. The main contributors to interference in geological samples are from Ti-48 and Cl-34m, whereas those from Sc-44 and Zr-89 are minor. Optimizing beam energy and irradiation-decay-counting times, together with using interfering element calibration standards, allowed reliable IPAA determination of fluorine in selected USGS and CRPG geochemical reference materials, NIST coal reference materials, and NIST RM 8414 Bovine Muscle. In agreement with the published data obtained by PIGE, the results of the F assay by IPAA have

Název v anglickém jazyce

Nondestructive assay of fluorine in geological and other materials by instrumental photon activation analysis with a microtron

Popis výsledku anglicky

The present paper examines possibilities of non-destructive determination of fluorine, mainly in minerals, rocks and coal, by instrumental photon activation analysis (IPAA) using the MT-25 microtron. The fluorine assay consists of counting the positron-electron annihilation line of F-18 at 511 key, which is a product of the photonuclear reaction F-19(gamma,n)F-18 and a pure positron emitter. The assay is complicated by the simultaneous formation of other positron emitters. The main contributors to interference in geological samples are from Ti-48 and Cl-34m, whereas those from Sc-44 and Zr-89 are minor. Optimizing beam energy and irradiation-decay-counting times, together with using interfering element calibration standards, allowed reliable IPAA determination of fluorine in selected USGS and CRPG geochemical reference materials, NIST coal reference materials, and NIST RM 8414 Bovine Muscle. In agreement with the published data obtained by PIGE, the results of the F assay by IPAA have

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

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

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Svazek periodika

342

Číslo periodika v rámci svazku

JAN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

82-86

Kód UT WoS článku

000347770500012

EID výsledku v databázi Scopus

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