A5014733506- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Black Holes and Theoretical Physics
- Corporate Governance and Management
- Nuclear physics research studies
- CCD and CMOS Imaging Sensors
- Corporate Governance and Law
- Cold Atom Physics and Bose-Einstein Condensates
- European Monetary and Fiscal Policies
- Radiation Effects in Electronics
- X-ray Diffraction in Crystallography
- Astrophysics and Cosmic Phenomena
- Crystallization and Solubility Studies
Technical University of Munich
2015-2024
Universidade Federal de Santa Catarina
2015-2024
University of Freiburg
2024
Excellence Cluster Origins
2023-2024
A. Alikhanyan National Laboratory
2023
Max Planck Institute for Physics
2020-2023
University of Cincinnati
2016-2023
Campbell Collaboration
2016-2023
Airbus (Germany)
2023
Korea Institute of Science & Technology Information
2023
The Murchison Widefield Array (MWA) is a new low-frequency interferometric radio telescope built in Western Australia at one of the locations future Square Kilometre (SKA). We describe automated radio-frequency interference (RFI) detection strategy implemented for MWA, which based on AOFlagger platform, and present 72-231-MHz RFI statistics from 10 observing nights. removes 1.1% data. digital TV (DTV) observed 3% time due to occasional ionospheric or atmospheric propagation. After excision,...
The separation of the faint cosmological background signal from bright astrophysical foregrounds remains one most daunting challenges mapping high-redshift intergalactic medium with redshifted 21 cm line neutral hydrogen. Advances in and modeling diffuse point source have improved subtraction accuracy, but no scheme is perfect. Precisely quantifying errors error correlations due to missubtracted allows for both rigorous analysis power spectrum maximal isolation "EoR window" foreground...
We present first results from radio observations with the Murchison Widefield Array seeking to constrain power spectrum of 21 cm brightness temperature fluctuations between redshifts 11.6 and 17.9 (113 75 MHz). 3 h were conducted over two nights significantly different levels ionospheric activity. use these data assess impact systematic errors at low frequency, including ionosphere radio-frequency interference, on a measurement. find that after 1–3 integration presented here, our...
A versatile and portable magnetically shielded room with a field of (700 ± 200) pT within central volume 1 m × gradient less than 300 pT/m, achieved without any external stabilization or compensation, is described. This performance represents more hundredfold improvement the state art for two-layer magnetic shield provides an environment suitable next generation precision experiments in fundamental physics at low energies; particular, searches electric dipole moments systems tests...
We present the 21 cm power spectrum analysis approach of Murchison Widefield Array Epoch Reionization project. In this paper, we compare outputs multiple pipelines for purpose validating statistical limits cosmological hydrogen at redshifts between 6 and 12. Multiple, independent, data calibration reduction are used to make on a fiducial night data. Comparing imaging stages highlights differences in calibration, foreground subtraction calculation. The spectra found using these different...
We report measurements of production cross sections for <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>ρ</a:mi><a:mo>+</a:mo></a:msup></a:math>, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>ρ</c:mi><c:mn>0</c:mn></c:msup></c:math>, <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi>ω</e:mi></e:math>, <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"...
MADPET4 is the first small animal PET insert with two layers of individually read out crystals in combination silicon photomultiplier technology. It has a novel detector arrangement, which all face center field view transaxially. In this work, performance was evaluated and compared to other preclinical scanners using NEMA NU 4 measurements, followed by imaging mouse-size hot-rod resolution phantom vivo simultaneous PET/MRI scans 7 T MRI scanner. The had peak sensitivity 0.49%, an energy...
We performed ultracold neutron storage measurements to search for additional losses due (n) mirror-neutron (n′) oscillations as a function of an applied magnetic field B. In the presence mirror B′, would be maximal B≈B′. did not observe any indication nn′ and placed lower limit on oscillation time τnn′>12.0 s at 95% C.L. B′ between 0 12.5 μT.Received 26 May 2009DOI:https://doi.org/10.1103/PhysRevD.80.032003©2009 American Physical Society
The European Particle Physics Strategy Update (EPPSU) process takes a bottom-up approach, whereby the community is first invited to submit proposals (also called inputs) for projects that it would like see realised in near-term, mid-term and longer-term future. National inputs as well from Laboratories are also an important element of process. All these then reviewed by Preparatory Group (PPG), whose role organize Symposium around submitted ideas prepare discussion on importance merits...
We propose in this study a novel PET detector concept as insert for simultaneous PET/MR imaging, using arrays of Silicon Photomultipliers (SiPMs) photodetectors, read out by data acquisition system based on sampling ADCs. A 2 × LSO-SiPM array and four single channel LYSO-SiPM detectors have been evaluated compared to LSO-APD detector. 17.9% energy resolution 1.4 ns time measured. No degradation these values could be detected when MR acquisitions were performed. The non-linear behaviour due...