The Low-Background HPGE Γ-Spectrometer OBELIX for the Investigation of the Double Beta Decay to Excited States

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F17%3A00310086" target="_blank" >RIV/68407700:21670/17:00310086 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.9790/4861-0901012229" target="_blank" >http://dx.doi.org/10.9790/4861-0901012229</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.9790/4861-0901012229" target="_blank" >10.9790/4861-0901012229</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Low-Background HPGE Γ-Spectrometer OBELIX for the Investigation of the Double Beta Decay to Excited States

Popis výsledku v původním jazyce

A new ultra-low-background spectrometer based on a HPGe detector with a sensitive volume of 600 cm3 was developed to investigate rare nuclear processes, such as resonant neutrino-less double electron capture (0νEC/EC) and double beta decay processes (2ν2β–, 2νβ+EC, 2νEC/EC) to the excited states of daughter nuclei. The spectrometer was installed at the Modane underground laboratory (LSM, France, 4800 m w.e.). Sensitivity of the spectrometer and its background were tested. A new method for the efficiency calibration in measurements of low-active samples was developed. A spectrometer was used for the measurements of low active materials and samples. Results obtained in 395 h investigation of resonant 0νEC/EC decay of 106Cd to the 2718 keV and 2741 keV excited states of 106Pd with ~23.2 g of enriched 106Cd, β+EC, EC/EC decays of 58Ni in measurements of ~21.7 kg sample of natural nickel and 2ν2β– decay of 100Mo sample with the mass of 2588 g to the 0+, 1130 keV and 2+, 539.5 keV excited states of 100Ru are presented.

Název v anglickém jazyce

The Low-Background HPGE Γ-Spectrometer OBELIX for the Investigation of the Double Beta Decay to Excited States

Popis výsledku anglicky

A new ultra-low-background spectrometer based on a HPGe detector with a sensitive volume of 600 cm3 was developed to investigate rare nuclear processes, such as resonant neutrino-less double electron capture (0νEC/EC) and double beta decay processes (2ν2β–, 2νβ+EC, 2νEC/EC) to the excited states of daughter nuclei. The spectrometer was installed at the Modane underground laboratory (LSM, France, 4800 m w.e.). Sensitivity of the spectrometer and its background were tested. A new method for the efficiency calibration in measurements of low-active samples was developed. A spectrometer was used for the measurements of low active materials and samples. Results obtained in 395 h investigation of resonant 0νEC/EC decay of 106Cd to the 2718 keV and 2741 keV excited states of 106Pd with ~23.2 g of enriched 106Cd, β+EC, EC/EC decays of 58Ni in measurements of ~21.7 kg sample of natural nickel and 2ν2β– decay of 100Mo sample with the mass of 2588 g to the 0+, 1130 keV and 2+, 539.5 keV excited states of 100Ru are presented.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

<a href="/cs/project/LM2015072" target="_blank" >LM2015072: Podzemní laboratoř LSM – účast České republiky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

IOSR Journal of Applied Physics

ISSN

2278-4861

e-ISSN

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Svazek periodika

9

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

8

Strana od-do

22-29

Kód UT WoS článku

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EID výsledku v databázi Scopus

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