Reduction of stored-particle background by a magnetic pulse method at the KATRIN experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00494427" target="_blank" >RIV/61389005:_____/18:00494427 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epjc/s10052-018-6244-8" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-018-6244-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-018-6244-8" target="_blank" >10.1140/epjc/s10052-018-6244-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reduction of stored-particle background by a magnetic pulse method at the KATRIN experiment

Popis výsledku v původním jazyce

The KATRIN experiment aims to determine the effective electron neutrino mass with a sensitivity of 0.2 eV/c(2) (% 90 CL) by precision measurement of the shape of the tritium beta-spectrum in the endpoint region. The energy analysis of the decay electrons is achieved by a MAC-E filter spectrometer. A common background source in this setup is the decay of short-lived isotopes, such as Rn-219 and Rn-220, in the spectrometer volume. Active and passive countermeasures have been implemented and tested at the KATRIN main spectrometer. One of these is the magnetic pulse method, which employs the existing air coil system to reduce the magnetic guiding field in the spectrometer on a short timescale in order to remove low-and high-energy stored electrons. Here we describe the working principle of this method and present results from commissioning measurements at the main spectrometer. Simulations with the particle-tracking software KASSIOPEIA were carried out to gain a detailed understanding of the electron storage conditions and removal processes.

Název v anglickém jazyce

Reduction of stored-particle background by a magnetic pulse method at the KATRIN experiment

Popis výsledku anglicky

The KATRIN experiment aims to determine the effective electron neutrino mass with a sensitivity of 0.2 eV/c(2) (% 90 CL) by precision measurement of the shape of the tritium beta-spectrum in the endpoint region. The energy analysis of the decay electrons is achieved by a MAC-E filter spectrometer. A common background source in this setup is the decay of short-lived isotopes, such as Rn-219 and Rn-220, in the spectrometer volume. Active and passive countermeasures have been implemented and tested at the KATRIN main spectrometer. One of these is the magnetic pulse method, which employs the existing air coil system to reduce the magnetic guiding field in the spectrometer on a short timescale in order to remove low-and high-energy stored electrons. Here we describe the working principle of this method and present results from commissioning measurements at the main spectrometer. Simulations with the particle-tracking software KASSIOPEIA were carried out to gain a detailed understanding of the electron storage conditions and removal processes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

78

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

—

Kód UT WoS článku

000445683400006

EID výsledku v databázi Scopus

2-s2.0-85053933839