Gamma-induced background in the KATRIN main spectrometer

Publikationstyp:

Zeitschriftenaufsatz

Metadaten:

Autoren

K Altenmueller
M Arenz
W-J Baek
M Beck
A Beglarian
J Behrens
A Berlev
U Besserer
K Blaum
F Block
S Bobien
T Bode
B Bornschein
L Bornschein
H Bouquet
T Brunst
N Buzinsky
S Chilingaryan
WQ Choi
M Deffert
PJ Doe
O Dragoun
G Drexlin
S Dyba
K Eitel
E Ellinger
R Engel
S Enomoto
M Erhard
D Eversheim
M Fedkevych
JA Formaggio
FM Fraenkle
GB Franklin
F Friedel
A Fulst
W Gil
F Glueck
A Gonzalez Urena
R Groessle
R Gumbsheimer
M Hackenjos
V Hannen
F Harms
N Haussmann
F Heizmann
K Helbing
W Herz
S Hickford
D Hilk
D Hillesheimer
MA Howe
A Huber
A Jansen
C Karl
J Kellerer
N Kernert
L Kippenbrock
M Klein
A Kopmann
M Korzeczek
A Kovalik
B Krasch
A Kraus
M Kraus
T Lasserre
O Lebeda
B Lehnert
J Letnev
A Lokhov
M Machatschek
A Marsteller
EL Martin
S Mertens
S Mirz
B Monreal
H Neumann
S Niemes
A Osipowicz
E Otten
DS Parno
A Pollithy
AWP Poon
F Priester
PC-O Ranitzsch
O Rest
RGH Robertson
C Rodenbeck
M Roellig
C Roettele
M Ryaavy
R Sack
A Saenz
L Schimpf
K Schloesser
M Schloesser
L Schlueter
M Schrank
H Seitz-Moskaliuk
V Sibille
M Slezak
M Steidl
N Steinbrink
M Sturm
M Suchopar
D Tcherniakhovski
HH Telle
LA Thorne
T Thuemmler
N Titov
I Tkachev
N Trost
K Valerius
D Venos
R Vianden
AP Vizcaya Hernandez
M Weber
C Weinheimer
C Weiss
S Welte
J Wendel
JF Wilkerson
J Wolf
S Wuestling
S Zadoroghny
G Zeller

Autoren-URL

https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000487944300001&DestLinkType=FullRecord&DestApp=WOS_CPL

DOI

10.1140/epjc/s10052-019-7320-4

eISSN

1434-6052

Externe Identifier

Clarivate Analytics Document Solution ID: JA6HU

ISSN

1434-6044

Ausgabe der Veröffentlichung

Zeitschrift

EUROPEAN PHYSICAL JOURNAL C

Artikelnummer

ARTN 807

Datum der Veröffentlichung

2019

Status

Published

Titel

Gamma-induced background in the KATRIN main spectrometer

Sub types

Article

Ausgabe der Zeitschrift

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:

Abstract

Abstract The KATRIN experiment aims to measure the effective electron antineutrino mass $$m_{\overline{\nu }_e}$$<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>m</mml:mi><mml:msub><mml:mover><mml:mi>ν</mml:mi><mml:mo>¯</mml:mo></mml:mover><mml:mi>e</mml:mi></mml:msub></mml:msub></mml:math> with a sensitivity of $${0.2}\,{\hbox {eV}/\hbox {c}^2}$$<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mrow><mml:mn>0.2</mml:mn></mml:mrow><mml:mspace /><mml:mrow><mml:mtext>eV</mml:mtext><mml:mo>/</mml:mo><mml:msup><mml:mtext>c</mml:mtext><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:mrow></mml:math> using a gaseous tritium source combined with the MAC-E filter technique. A low background rate is crucial to achieving the proposed sensitivity, and dedicated measurements have been performed to study possible sources of background electrons. In this work, we test the hypothesis that gamma radiation from external radioactive sources significantly increases the rate of background events created in the main spectrometer (MS) and observed in the focal-plane detector. Using detailed simulations of the gamma flux in the experimental hall, combined with a series of experimental tests that artificially increased or decreased the local gamma flux to the MS, we set an upper limit of $${0.006}\,{\hbox {count}/\hbox {s}}$$<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mrow><mml:mn>0.006</mml:mn></mml:mrow><mml:mspace /><mml:mrow><mml:mtext>count</mml:mtext><mml:mo>/</mml:mo><mml:mtext>s</mml:mtext></mml:mrow></mml:mrow></mml:math> (90% C.L.) from this mechanism. Our results indicate the effectiveness of the electrostatic and magnetic shielding used to block secondary electrons emitted from the inner surface of the MS.

Autoren

K Altenmüller
M Arenz
W-J Baek
M Beck
A Beglarian
J Behrens
A Berlev
U Besserer
K Blaum
F Block
S Bobien
T Bode
B Bornschein
L Bornschein
H Bouquet
T Brunst
N Buzinsky
S Chilingaryan
WQ Choi
M Deffert
PJ Doe
O Dragoun
G Drexlin
S Dyba
K Eitel
E Ellinger
R Engel
S Enomoto
M Erhard
D Eversheim
M Fedkevych
JA Formaggio
FM Fränkle
GB Franklin
F Friedel
A Fulst
W Gil
F Glück
A Gonzalez Ureña
R Grössle
R Gumbsheimer
M Hackenjos
V Hannen
F Harms
N Haußmann
F Heizmann
K Helbing
W Herz
S Hickford
D Hilk
D Hillesheimer
MA Howe
A Huber
A Jansen
C Karl
J Kellerer
N Kernert
L Kippenbrock
M Klein
A Kopmann
M Korzeczek
A Kovalík
B Krasch
A Kraus
M Kraus
T Lasserre
O Lebeda
B Lehnert
J Letnev
A Lokhov
M Machatschek
A Marsteller
EL Martin
S Mertens
S Mirz
B Monreal
H Neumann
S Niemes
A Osipowicz
E Otten
DS Parno
A Pollithy
AWP Poon
F Priester
PC-O Ranitzsch
O Rest
RGH Robertson
C Rodenbeck
M Röllig
C Röttele
M Ryšavý
R Sack
A Saenz
L Schimpf
K Schlösser
M Schlösser
L Schlüter
M Schrank
H Seitz-Moskaliuk
V Sibille
M Slezák
M Steidl
N Steinbrink
M Sturm
M Suchopar
D Tcherniakhovski
HH Telle
LA Thorne
T Thümmler
N Titov
I Tkachev
N Trost
K Valerius
D Vénos
R Vianden
AP Vizcaya Hernández
M Weber
C Weinheimer
C Weiss
S Welte
J Wendel
JF Wilkerson
J Wolf
S Wüstling
S Zadoroghny
G Zeller

DOI

10.1140/epjc/s10052-019-7320-4

eISSN

1434-6052

ISSN

1434-6044

Ausgabe der Veröffentlichung

Zeitschrift

The European Physical Journal C

Sprache

Artikelnummer

807

Online publication date

2019

Datum der Veröffentlichung

2019

Status

Published

Herausgeber

Springer Science and Business Media LLC

Herausgeber URL

http://dx.doi.org/10.1140/epjc/s10052-019-7320-4

Datum der Datenerfassung

2020

Titel

Gamma-induced background in the KATRIN main spectrometer

Ausgabe der Zeitschrift

Datenquelle: Crossref

Beziehungen:

Hat Preprint

Gamma-induced background in the KATRIN main spectrometer

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Gamma-induced background in the KATRIN main spectrometer

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