Počet záznamů: 1
Quantitative Long-Term Monitoring of the Circulating Gases in the KATRIN Experiment Using Raman Spectroscopy
- 1.
SYSNO ASEP 0532615 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Quantitative Long-Term Monitoring of the Circulating Gases in the KATRIN Experiment Using Raman Spectroscopy Tvůrce(i) Aker, M. (DE)
Altenmuller, K. (DE)
Beglarian, A. (DE)
Behrens, J. (DE)
Berlev, A. I. (RU)
Dragoun, Otokar (UJF-V) RID, SAI
Kovalík, Alojz (UJF-V) RID, ORCID, SAI
Lebeda, Ondřej (UJF-V) RID, ORCID, SAI
Ryšavý, Miloš (UJF-V) RID, ORCID, SAI
Schlosser, M. (CH)
Šefčík, Michal (UJF-V) ORCID, SAI
Slezák, Martin (UJF-V) RID, ORCID
Vénos, Drahoslav (UJF-V) RID, SAI, ORCIDCelkový počet autorů 129 Číslo článku 4827 Zdroj.dok. Sensors. - : MDPI
Roč. 20, č. 17 (2020)Poč.str. 29 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova KATRIN ; Raman spectroscopy ; tritium ; gas composition monitoring Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače Obor OECD Particles and field physics CEP LM2015056 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy LTT19005 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UJF-V - RVO:61389005 UT WOS 000570345700001 EID SCOPUS 85090172633 DOI 10.3390/s20174827 Anotace The Karlsruhe Tritium Neutrino (KATRIN) experiment aims at measuring the effective electron neutrino mass with a sensitivity of 0.2 eV/c(2), i.e., improving on previous measurements by an order of magnitude. Neutrino mass data taking with KATRIN commenced in early 2019, and after only a few weeks of data recording, analysis of these data showed the success of KATRIN, improving on the known neutrino mass limit by a factor of about two. This success very much could be ascribed to the fact that most of the system components met, or even surpassed, the required specifications during long-term operation. Here, we report on the performance of the laser Raman (LARA) monitoring system which provides continuous high-precision information on the gas composition injected into the experiment's windowless gaseous tritium source (WGTS), specifically on its isotopic purity of tritium-one of the key parameters required in the derivation of the electron neutrino mass. The concentrationsc(x)for all six hydrogen isotopologues were monitored simultaneously, with a measurement precision for individual components of the order 10(-3)or better throughout the complete KATRIN data taking campaigns to date. From these, the tritium purity,epsilon(T), is derived with precision of <10(-3)and trueness of <3 x 10(-3), being within and surpassing the actual requirements for KATRIN, respectively. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2021 Elektronická adresa https://doi.org/10.3390/s20174827
Počet záznamů: 1