In the scope of the search for axions and axion like particles (Alps) with helioscopes, like the International Axion Obeservatory (IAXO) and its precurser BabyIAXO, detectors capable of measuring low energy X-rays down to the 200 eV range are necessary. For this purpose the GridPix detector is an appropriate solution, which has already been used successfully at CAST.
The GridPix is a...
The primary goal of the AEgIS experiment is to measure the gravitational acceleration on antimatter by means of deflectometry/interferometry. This requires the simultaneous detection of the impact position and time of arrival of the atoms at a detector with high resolution. The detection of a low-velocity positronium (Ps) beam with (88 ± 5) µm spatial resolution was demonstrated [1]. Based on...
The Axion Dark Matter eXperiment (ADMX) searches for Axions, a hypothetical dark matter candidate, through conversion to photons in a high magnetic field that are subsequently detected within a resonant cavity. The rate that this detector is able to scan potential axion masses (or photon frequency) depends linearly on the cavity quality factor. Though Superconducting Radio Frequency cavities...
The identification, or “tagging” of the barium-136 daughter atom that results from double beta decay of xenon-136 provides a promising technique for elimination of all backgrounds except 2-neutrino double beta decay in future generations of 136Xe neutrinoless double beta decay experiments. We have demonstrated that individual Barium atoms can be imaged and counted in two of four matrix sites...
The identification of a single barium ion in coincidence with an energy deposit measured with a precision of 1% in xenon is widely recognized as an unambiguous signature of neutrinoless double beta decay. The detection of single ions in tons of xenon, however, is a major experimental challenge. In this talk I will discuss barium tagging methodologies based on single molecule fluorescence...
