The Cryogenic Pumping Section of KATRIN and the Test Experiment TRAP

Eichelhardt, F.

doi:10.1016/j.nuclphysbps.2011.09.042

Cited by 5 publications

(5 citation statements)

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“…This system is based on differential [904] and cryogenic [905,906] pumping obviating any tritium blocking membrane. This fact is extremely advantageous for the search for keV-scale sterile neutrinos, as it avoids systematic effects due to energy losses of the electrons in such a membrane.…”

Section: Tritium Beta Decay Experiments (Author: S Mertens)mentioning

confidence: 99%

“…KATRIN provides a sophisticated tritium retention system, reducing the tritium flow by 14 orders of magnitude from the windowless gaseous tritium source (WGTS) to the spectrometer. This system is based on differential [903] and cryogenic [904,905] pumping obviating any tritium blocking membrane. This fact is extremely advantageous for the search for keVscale sterile neutrinos, as it avoids systematic effects due to energy losses of the electrons in such a membrane.…”

Section: Jcap01(2017)025mentioning

confidence: 99%

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A White Paper on keV sterile neutrino Dark Matter

Adhikari

Agostini

et al. 2017

J. Cosmol. Astropart. Phys.

380

316

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Abstract. We present a comprehensive review of keV-scale sterile neutrino Dark Matter, collecting views and insights from all disciplines involved -cosmology, astrophysics, nuclear, and particle physics -in each case viewed from both theoretical and experimental/observational perspectives. After reviewing the role of active neutrinos in particle physics, astrophysics, and cosmology, we focus on sterile neutrinos in the context of the Dark Matter puzzle. Here, we first review the physics motivation for sterile neutrino Dark Matter, based on challenges and tensions in purely cold Dark Matter scenarios. We then round out the discussion by critically summarizing all known constraints on sterile neutrino Dark Matter arising from astrophysical observations, laboratory experiments, and theoretical considerations. In this context, we provide a balanced discourse on the possibly positive signal from X-ray observations. Another focus of the paper concerns the construction of particle physics models, aiming to explain how sterile neutrinos of keV-scale masses could arise in concrete settings beyond the Standard Model of elementary particle physics. The paper ends with an extensive review of current and future astrophysical and laboratory searches, highlighting new ideas and their experimental challenges, as well as future perspectives for the discovery of sterile neutrinos.

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Section: Tritium Beta Decay Experiments (Author: S Mertens)mentioning

confidence: 99%

Section: Jcap01(2017)025mentioning

confidence: 99%

A White Paper on keV sterile neutrino Dark Matter

Adhikari

Agostini

et al. 2017

J. Cosmol. Astropart. Phys.

380

316

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show abstract

“…Any remaining tritium that escapes through the differential pumping section is trapped in Ar frost, which forms a highly efficient, large-area, chemically inert, and radiation-immune surface. The CPS is nearing completion at Ansaldo Superconduttori [21].…”

Section: Cryogenic Pumping Sectionmentioning

confidence: 94%

KATRIN: an experiment to determine the neutrino mass from the beta decay of tritium

Robertson

2013

Preprint

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KATRIN is a very large scale tritium-beta-decay experiment to determine the mass of the neutrino. It is presently under construction at the Karlsruhe Institute of Technology north campus, and makes use of the Karlsruhe Tritium Laboratory built as a prototype for the ITER project.The combination of a large retarding-potential electrostatic-magnetic spectrometer and an intense gaseous molecular tritium source makes possible a sensitivity to neutrino mass of 0.2 eV, about an order of magnitude below present laboratory limits. The measurement is kinematic and independent of whether the neutrino is Dirac or Majorana. The status of the project is summarized briefly in this report.

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“…The argon frost forms a highly efficient, large-area, and radiationimmune surface. The feasibility of this approach was successfully tested in a test experiment called TRAP [9] which achieved a 2 reduction factor of about 10 7 . The CPS was delivered to KIT in July 2015 and was successfully cooled to the operational temperature of about 4 K. Simulations based on the performance of the initial cool-down indicate that the 2 reduction factor could be two or more orders of magnitude better than specified.…”

Section: Differential Cryogenic Pumping Sectionmentioning

confidence: 99%

The Neutrino Mass Experiment KATRIN

Fraenkle

2019

Ukr. J. Phys.

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The KArlsruhe TRItium Neutrino (KATRIN) experiment is a large-scale experiment with the objective to determine the effective electron antineutrino mass in a model-independent way with an unprecedented sensitivity of 0.2 eV/c2 at 90% C.L. The measurement method is based on the precision B-decay spectroscopy of molecular tritium. The experimental setup consists of a high-luminosity windowless gaseous tritium source, a magnetic electron transport system with differential cryogenic pumping for the tritium retention, and an electrostatic spectrometer section for the energy analysis, followed by a segmented detector system for the counting of transmitted B-electrons. The first KATRIN neutrino mass measurement phase started in March 2019. Here, we will give an overview of the KATRIN experiment and its current status.

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The Cryogenic Pumping Section of KATRIN and the Test Experiment TRAP

Cited by 5 publications

References 0 publications

A White Paper on keV sterile neutrino Dark Matter

A White Paper on keV sterile neutrino Dark Matter

KATRIN: an experiment to determine the neutrino mass from the beta decay of tritium

The Neutrino Mass Experiment KATRIN

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