Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source

Babutzka, M; Bahr, M; Bonn, J; Bornschein, B; Dieter, A; Drexlin, G; Eitel, K; Fischer, S; Glück, F; Grohmann, S; Hötzel, M; James, T M; Käfer, W; Leber, M; Monreal, B; Priester, F; Röllig, M; Schlösser, M; Schmitt, U; Sharipov, F; Steidl, M; Sturm, M; Telle, H H; Titov, N; Telle, Helmut; James, Timothy

doi:10.1088/1367-2630/14/10/103046

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Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source

M Babutzka, M Bahr, J Bonn, B Bornschein, A Dieter, G Drexlin, K Eitel, S Fischer, F Glück, S Grohmann, M Hötzel, T M James, W Käfer, M Leber, B Monreal, F Priester, M Röllig, M Schlösser, U Schmitt, F Sharipov, M Steidl, M Sturm, H H Telle, N Titov, Helmut Telle, Timothy James

New Journal of Physics, Volume: 14, Issue: 10

Swansea University Authors: Helmut Telle, Timothy James

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DOI (Published version): 10.1088/1367-2630/14/10/103046

Abstract

The KArlsruhe TRItium Neutrino (KATRIN) experiment will measure the absolute mass scale of neutrinos with a sensitivity of m<sub>nu</sub> = 200 meV/c<super>2</super> by high-precision spectroscopy close to the tritium beta-decay endpoint at 18.6 keV. Its Windowless Gaseous Tr...

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Published in:	New Journal of Physics
ISSN:	1367-2630
Published:	2012
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URI:	https://cronfa.swan.ac.uk/Record/cronfa14498
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Its Windowless Gaseous Tritium Source (WGTS) is a beta-decay source of high intensity (10<super>11</super> s−1) and stability, where high-purity molecular tritium at 30 K is circulated in a closed loop with a yearly throughput of 10 kg. To limit systematic effects the column density of the source has to be stabilized at the 10<super>−3</super> level. This requires extensive sensor instrumentation and dedicated control and monitoring systems for parameters such as the beam tube temperature, injection pressure, gas composition and so on. In this paper, we give an overview of these systems including a dedicated laser-Raman system as well as several beta-decay activity monitors. We also report on the results of the WGTS demonstrator and other large-scale test experiments giving proof-of-principle that all parameters relevant to the systematics can be controlled and monitored on the 10<super>−3</super> level or better. 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spelling	2019-06-13T18:11:33.4651785 v2 14498 2013-03-27 Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source 7f645d598f0afb573309bc5f86ea46fa Helmut Telle Helmut Telle true false 8a92e003a0ce92f67bba506d7f03344f Timothy James Timothy James true false 2013-03-27 FGSEN The KArlsruhe TRItium Neutrino (KATRIN) experiment will measure the absolute mass scale of neutrinos with a sensitivity of m<sub>nu</sub> = 200 meV/c<super>2</super> by high-precision spectroscopy close to the tritium beta-decay endpoint at 18.6 keV. Its Windowless Gaseous Tritium Source (WGTS) is a beta-decay source of high intensity (10<super>11</super> s−1) and stability, where high-purity molecular tritium at 30 K is circulated in a closed loop with a yearly throughput of 10 kg. To limit systematic effects the column density of the source has to be stabilized at the 10<super>−3</super> level. This requires extensive sensor instrumentation and dedicated control and monitoring systems for parameters such as the beam tube temperature, injection pressure, gas composition and so on. In this paper, we give an overview of these systems including a dedicated laser-Raman system as well as several beta-decay activity monitors. We also report on the results of the WGTS demonstrator and other large-scale test experiments giving proof-of-principle that all parameters relevant to the systematics can be controlled and monitored on the 10<super>−3</super> level or better. As a result of these works, the WGTS systematics can be controlled within stringent margins, enabling the KATRIN experiment to explore the neutrino mass scale with the design sensitivity. Journal Article New Journal of Physics 14 10 1367-2630 29 10 2012 2012-10-29 10.1088/1367-2630/14/10/103046 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2019-06-13T18:11:33.4651785 2013-03-27T12:57:57.0813970 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics M Babutzka 1 M Bahr 2 J Bonn 3 B Bornschein 4 A Dieter 5 G Drexlin 6 K Eitel 7 S Fischer 8 F Glück 9 S Grohmann 10 M Hötzel 11 T M James 12 W Käfer 13 M Leber 14 B Monreal 15 F Priester 16 M Röllig 17 M Schlösser 18 U Schmitt 19 F Sharipov 20 M Steidl 21 M Sturm 22 H H Telle 23 N Titov 24 Helmut Telle 25 Timothy James 26 0014498-13062019181026.pdf Babutzka_2012_New_J._Phys._14_103046.pdf 2019-06-13T18:10:26.0130000 Output 2519783 application/pdf Version of Record true 2019-06-13T00:00:00.0000000 Distributed under the terms of a Creative Commons Attribution Non-Commercial (CC-BY-3.0) true eng
title	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
spellingShingle	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source Helmut Telle Timothy James
title_short	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
title_full	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
title_fullStr	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
title_full_unstemmed	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
title_sort	Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source
author_id_str_mv	7f645d598f0afb573309bc5f86ea46fa 8a92e003a0ce92f67bba506d7f03344f
author_id_fullname_str_mv	7f645d598f0afb573309bc5f86ea46fa_*_Helmut Telle 8a92e003a0ce92f67bba506d7f03344f_*_Timothy James
author	Helmut Telle Timothy James
author2	M Babutzka M Bahr J Bonn B Bornschein A Dieter G Drexlin K Eitel S Fischer F Glück S Grohmann M Hötzel T M James W Käfer M Leber B Monreal F Priester M Röllig M Schlösser U Schmitt F Sharipov M Steidl M Sturm H H Telle N Titov Helmut Telle Timothy James
format	Journal article
container_title	New Journal of Physics
container_volume	14
container_issue	10
publishDate	2012
institution	Swansea University
issn	1367-2630
doi_str_mv	10.1088/1367-2630/14/10/103046
college_str	Faculty of Science and Engineering
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hierarchy_top_title	Faculty of Science and Engineering
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hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str	1
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description	The KArlsruhe TRItium Neutrino (KATRIN) experiment will measure the absolute mass scale of neutrinos with a sensitivity of m<sub>nu</sub> = 200 meV/c<super>2</super> by high-precision spectroscopy close to the tritium beta-decay endpoint at 18.6 keV. Its Windowless Gaseous Tritium Source (WGTS) is a beta-decay source of high intensity (10<super>11</super> s−1) and stability, where high-purity molecular tritium at 30 K is circulated in a closed loop with a yearly throughput of 10 kg. To limit systematic effects the column density of the source has to be stabilized at the 10<super>−3</super> level. This requires extensive sensor instrumentation and dedicated control and monitoring systems for parameters such as the beam tube temperature, injection pressure, gas composition and so on. In this paper, we give an overview of these systems including a dedicated laser-Raman system as well as several beta-decay activity monitors. We also report on the results of the WGTS demonstrator and other large-scale test experiments giving proof-of-principle that all parameters relevant to the systematics can be controlled and monitored on the 10<super>−3</super> level or better. As a result of these works, the WGTS systematics can be controlled within stringent margins, enabling the KATRIN experiment to explore the neutrino mass scale with the design sensitivity.
published_date	2012-10-29T03:16:36Z
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Monitoring of the operating parameters of the KATRIN Windowless Gaseous Tritium Source

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