Characterisation of a silicon drift detector for high-resolution electron spectroscopy

Gugiatti, Matteo; Biassoni, M.; Carminati, Marco; Cremonesi, O.; Fiorini, C.; King, Pietro; Lechner, P.; Mertens, S.; Pagnanini, L.; Pavan, M.; Pozzi, S.

doi:10.1016/j.nima.2020.164474

Cited by 33 publications

(14 citation statements)

References 16 publications

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“…Here, we present first characterization measurements of a 7 −pixel prototype SDD with monoenergetic electrons at room temperature [142,144,145]. A scanning electron microscope was used as a calibration source.…”

Section: Discussionmentioning

confidence: 99%

“…More details on the electron characterization measurements can be found in Ref. [142,144,145], including an estimation of the entrance-window thickness, as well as the impact of the detector response on the sterile neutrino sensitivity.…”

Section: Discussionmentioning

confidence: 99%

“…To test the general performance of the novel detector system, several measurements were performed with 1-, 7-and 47-pixel prototype detectors in dedicated setups [142][143][144][145]. In particular, we investigated the energy resolution, linearity, and electronic noise of the system.…”

Section: Detector Characterizationmentioning

confidence: 99%

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KATRIN: Status and Prospects for the Neutrino Mass and Beyond

Aker,

Balzer,

Batzler

et al. 2022

Preprint

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The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 β decay, with the primary goal of probing the absolute mass scale of the neutrino. After a first tritium commissioning campaign in 2018, the experiment has been regularly running since 2019, and in its first two measurement campaigns has already achieved a sub-eV sensitivity. After 1000 days of data-taking, KATRIN's design sensitivity is 0.2 eV at the 90 % confidence level. In this white paper we describe the current status of KATRIN; explore prospects for measuring the neutrino mass and other physics observables, including sterile neutrinos and other beyond-Standard-Model hypotheses; and discuss research-anddevelopment projects that may further improve the KATRIN sensitivity.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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KATRIN: Status and Prospects for the Neutrino Mass and Beyond

Aker,

Balzer,

Batzler

et al. 2022

Preprint

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“…This is illuminated by a mono-energetic electron beam generated by a Scanning Electron Microscope (SEM), as well as by an 55 Fe X-ray source. A very detailed description of the setup and a full report on the results of measurements done at different beam energies, incident angles and beam position on the detector surface can be found in [15]. In the cited paper, the process of optimization of the detector working point for X-rays and electrons is also described.…”

Section: Methodsmentioning

confidence: 99%

Electron spectrometry with Silicon drift detectors: a GEANT4 based method for detector response reconstruction

et al. 2021

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Precision electron spectrometry in the keV range has always been considered a challenging task. The reconstruction of the original electron energy from the detected signal is not trivial because multiple effects modify the kinetic energy of the electron along its path. If not correctly accounted for, these effects can spoil and bias the reconstructed energy with a dramatic reduction of accuracy and precision. In this paper we address one of the most critical aspects of electron spectrometry: the generally unknown effect of the detector entrance window. We show that, with a MonteCarlo-based approach, we are able to build a model of the entrance window accurate enough to reduce the negative effects due to its existence. We adopt for this purpose Silicon Drift Detectors that, thought primarily used for X-ray spectrometry, appear a promising device for electron spectrometry. The technique we discuss exploits characterization and validation measurements performed with electron beams from a Scanning Electron Microscope, later reconstructed with a GEANT4 MonteCarlo simulation.

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“…The same issues affect also the most advanced tool for electron spectroscopy, i.e. Silicon Drift Detector [11], even if recent results demonstrate the possibility to include these effects in the Monte Carlo simulations [12]. On the other hand, cryogenic macro-calorimeters have recently been used for the first time to study the spectral shape of the two-neutrino double-beta decay [13,14,15],demonstrating their potential for this application.…”

Section: Introductionmentioning

confidence: 99%

Development of cryogenic calorimeters to measure the spectral shape of In-115 beta decay

Celi,

Galazka,

Laubenstein

et al. 2021

Preprint

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The spectral shape of forbidden beta-decays is a crucial benchmark for nuclear physics calculations and has important implications also for astroparticle physics experiments. Among the interesting isotopes in this field, 115 In is an excellent candidate, being a primordial nuclide featuring a good compromise among Q-value (497.954 keV) and half-life (4.41 × 10 14 yr). In this paper, we propose to exploit a cryogenic calorimeter based on In 2 O 3 crystal to perform a high-precision measurement of the β-decay energy spectrum, discussing also the results obtained within a preliminary test of this crystal and the next steps to improve the detector performance.

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Characterisation of a silicon drift detector for high-resolution electron spectroscopy

Cited by 33 publications

References 16 publications

KATRIN: Status and Prospects for the Neutrino Mass and Beyond

KATRIN: Status and Prospects for the Neutrino Mass and Beyond

Electron spectrometry with Silicon drift detectors: a GEANT4 based method for detector response reconstruction

Development of cryogenic calorimeters to measure the spectral shape of In-115 beta decay

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