A5060111610- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Nuclear Physics and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Geophysical and Geoelectrical Methods
- Radiation Detection and Scintillator Technologies
- Advanced NMR Techniques and Applications
- Magnetic and Electromagnetic Effects
- Nuclear reactor physics and engineering
- Magnetic Properties of Alloys
- Geomagnetism and Paleomagnetism Studies
- Dark Matter and Cosmic Phenomena
- Radiation Therapy and Dosimetry
- Nuclear Materials and Properties
- Advanced Frequency and Time Standards
- Radioactive Decay and Measurement Techniques
Technical University of Munich
2008-2019
Paul Scherrer Institute
2009
Physikalisch-Technische Bundesanstalt
2009
Ludwig-Maximilians-Universität München
2008
Heinz Maier-Leibnitz Zentrum
2008
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 a magnetically shielded environment with damping factor larger than 1 × 106 at the mHz frequency regime and an extremely low field gradient over extended volume. This extraordinary shielding performance represents improvement of state-of-the-art in difficult very low-frequency distortions by more order magnitude. technology enables new generation high-precision measurements fundamental physics metrology, including searches for far beyond reach accelerator-based experiments....
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 neutron's permanent electric dipole moment $d_n$ is constrained to below $3\times10^{-26} e~\text{cm}$ (90% C.L.) [ arXiv:hep-ex/0602020, arXiv:1509.04411 ], by experiments using ultracold neutrons (UCN). We plan improve this limit an order of magnitude or more with PanEDM, the first experiment exploiting ILL's new UCN source SuperSUN. SuperSUN expected provide a high density energies 80 neV, implying extended statistical reach respect existing sources, for that rely on long storage...
I. Altarev(), S. Chesnevskaya(), W. Feldmeier(), P. Fierlinger(), A. Frei(), E. Gutsmiedl(), F. Kuchler(), Link(), T. Lins(), M. Marino(), Paul(), G. Petzoldt(), Pichlmaier(), R. Stoepler(), Stuiber(), B. Taubenheim() () Physikdepartment Technische Universitat Munchen and Excellence-Cluster ’Universe’ Munchen, Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM II)
We have investigated new guides for ultracold neutrons (UCN) produced with the so-called Replika-method. A Nickel–Vanadium alloy was used as reflecting material. The transport properties UCN were measured at PF2/TES beam Institut Laue–Langevin. a transmission of (0.990±0. 006) m−1 and storage times varying from 20–40 s depending on length guide system. diffuse reflectivity also yielding value 0.030±0.005. type distribution switch tested 0.92±0.01.