Development and characterization of novel electronics for the search of dark matter for DAMIC-M

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F22%3A00381705" target="_blank" >RIV/68407700:90107/22:00381705 - isvavai.cz</a>

Výsledek na webu

<a href="https://theses.fr/2022SORUS238" target="_blank" >https://theses.fr/2022SORUS238</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Development and characterization of novel electronics for the search of dark matter for DAMIC-M

Popis výsledku v původním jazyce

There is plenty of astrophysical and cosmological evidence for the existence of dark matter. The DAMIC-M experiment is devoted to the search for light dark matter and other hidden sector candidates, through their direct interaction with the electrons or the nucleus of silicon atoms in the bulk of scientific-grade Charge-Coupled Devices (CCDs). A kilogram-sized target mass will be installed at the Modane underground laboratory which offers an excellent low background environment for such a rare-event search. One of the key features of the DAMIC-M detectors is the skipper readout, which allows for multiple non-destructive pixel charge measurements, reaching a readout noise of a fraction of an electron. This exquisite ability in terms of readout resolution can be limited by the radioactive background and the noise introduced by the external electronics. To support this undertaking a new custom acquisition system is developed by the collaboration. This thesis describes the advancements in the three main modules I contributed to, that compose the new system. A control board provides the necessary signals to the CCD that allow the exposure of the device, the transfer of the pixel charge to a readout amplifier, and its conversion to an analog signal. A front-end amplifier improves the signal-to-noise ratio and preprocesses the CCD output signal, and an analog-to-digital converter performs the transition to the digital domain. The new electronics are not yet ready but there has been much progress towards a complete acquisition system. Tests with several individual pieces have been successfully tested with CCDs as well as a preliminary version of a pure DAMIC-M system.

Název v anglickém jazyce

Development and characterization of novel electronics for the search of dark matter for DAMIC-M

Popis výsledku anglicky

There is plenty of astrophysical and cosmological evidence for the existence of dark matter. The DAMIC-M experiment is devoted to the search for light dark matter and other hidden sector candidates, through their direct interaction with the electrons or the nucleus of silicon atoms in the bulk of scientific-grade Charge-Coupled Devices (CCDs). A kilogram-sized target mass will be installed at the Modane underground laboratory which offers an excellent low background environment for such a rare-event search. One of the key features of the DAMIC-M detectors is the skipper readout, which allows for multiple non-destructive pixel charge measurements, reaching a readout noise of a fraction of an electron. This exquisite ability in terms of readout resolution can be limited by the radioactive background and the noise introduced by the external electronics. To support this undertaking a new custom acquisition system is developed by the collaboration. This thesis describes the advancements in the three main modules I contributed to, that compose the new system. A control board provides the necessary signals to the CCD that allow the exposure of the device, the transfer of the pixel charge to a readout amplifier, and its conversion to an analog signal. A front-end amplifier improves the signal-to-noise ratio and preprocesses the CCD output signal, and an analog-to-digital converter performs the transition to the digital domain. The new electronics are not yet ready but there has been much progress towards a complete acquisition system. Tests with several individual pieces have been successfully tested with CCDs as well as a preliminary version of a pure DAMIC-M system.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10304 - Nuclear physics

Projekt

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Návaznosti

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Rok uplatnění

2022

Kód důvěrnosti údajů

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