Ambipolarity of hydrogen in matter revealed by muons

R Kadono, H Hosono - Advances in Physics, 2023 - Taylor & Francis
Despite being the simplest element, hydrogen (H) exhibits complex behavior in materials
due to its unique ambipolar character. In particular, it is recognized as one of the most …

First observation of single photons in a CRESST detector and new dark matter exclusion limits

G Angloher, S Banik, G Benato, A Bento, A Bertolini… - Physical Review D, 2024 - APS
The main goal of the CRESST-III experiment is the direct detection of dark matter particles
via their scattering off target nuclei in cryogenic detectors. In this work we present the results …

Progress in development of a new luminescence setup at the FinEstBeAMS beamline of the MAX IV laboratory

V Pankratov, R Pärna, M Kirm, V Nagirnyi… - Radiation …, 2019 - Elsevier
FinEstBeAMS is a new materials science beamline at the 1.5 GeV storage ring of the MAX IV
Laboratory in Lund, Sweden. It has been built based on grazing incidence …

Evidence for the formation of two types of oxygen interstitials in neutron-irradiated α-Al2O3 single crystals

A Lushchik, VN Kuzovkov, EA Kotomin, G Prieditis… - Scientific Reports, 2021 - nature.com
Due to unique optical/mechanical properties and significant resistance to harsh radiation
environments, corundum (α-Al2O3) is considered as a promising candidate material for …

Atomic, electronic and magnetic structure of an oxygen interstitial in neutron-irradiated Al2O3 single crystals

V Seeman, A Lushchik, E Shablonin, G Prieditis… - Scientific reports, 2020 - nature.com
A single radiation-induced superoxide ion O 2-has been observed for the first time in metal
oxides. This structural defect has been revealed in fast-neutron-irradiated (6.9× 1018 n/cm2) …

Radiation resistance diagnostics of wide-gap optical materials

E Feldbach, E Tõldsepp, M Kirm, A Lushchik… - Optical Materials, 2016 - Elsevier
Novel approach in the detection of radiation damage created by ion beams in optical
materials was demonstrated. Protons of the energy of 100 keV and fluence of 10 17 cm− 2 …

Luminescence of free and self-trapped excitons in wide-gap oxides

A Lushchik, M Kirm, C Lushchik, I Martinson… - Journal of …, 2000 - Elsevier
Behaviour of the intrinsic emissions of 7.6, 3.45 and 3.6 eV in Al2O3, Y2O3 and Sc2O3,
respectively, has been studied under a crystal excitation by 5–35eV photons at 8–80K. In …

[HTML][HTML] Detection of hidden oxygen interstitials in neutron-irradiated corundum crystals

A Lushchik, V Seeman, E Shablonin, E Vasil'chenko… - Optical Materials: X, 2022 - Elsevier
Abstract An α-Al 2 O 3 (corundum) possesses unique optical, electrical and mechanical
properties, demonstrates high tolerance to heavy irradiation and, in particular, is in a short …

Luminescence and radiation defects in electron-irradiated Al2O3 and Al2O3: Cr

VN Makhov, A Lushchik, CB Lushchik, M Kirm… - Nuclear Instruments and …, 2008 - Elsevier
Luminescence of Al2O3 single crystals doped with Cr3+ (∼ 500ppm)(ruby), non-irradiated
and irradiated by 50-MeV electrons, has been studied in a wide range of excitation energy …

Luminescence of F and F+ centers in corundum upon excitation in the interval from 4 to 40eV

AI Surdo, VS Kortov, VA Pustovarov - Radiation measurements, 2001 - Elsevier
Time-resolved excitation spectra of luminescence from F+-and F-centers in α-Al2O3 were
analyzed with subnanosecond resolution in the interval from 4 to 40 eV at different …