17 Result(s)

Article

Neutron optics of the PSI ultracold-neutron source: characterization and simulation

The ultracold-neutron (UCN) source at the Paul Scherrer Institute serves mainly experiments in fundamental physics. High UCN intensities are the key for progress and success in such experiments. A detailed und...

G. Bison, B. Blau, M. Daum, L. Göltl, R. Henneck… in The European Physical Journal A (2020)

Article

Ultracold neutron detection with ⁶Li-doped glass scintillators

This paper summarizes the results from measurements aiming to characterize ultracold neutron detection with ⁶Li-doped glass scintillators. Single GS10 or GS20 scintillators, with a thickness of 100-200μm, fulfill...

G. Ban, G. Bison, K. Bodek, Z. Chowdhuri, P. Geltenbort… in The European Physical Journal A (2016)

Article

A device for simultaneous spin analysis of ultracold neutrons

We report on the design and first tests of a device allowing for measurement of ultracold neutrons polarisation by means of the simultaneous analysis of the two spin components. The device was developed in the...

S. Afach, G. Ban, G. Bison, K. Bodek, Z. Chowdhuri… in The European Physical Journal A (2015)

Article

Measurement of a false electric dipole moment signal from ¹⁹⁹Hg atoms exposed to an inhomogeneous magnetic field

We report on the measurement of a Larmor frequency shift proportional to the electric-field strength for ¹⁹⁹Hg atoms contained in a volume permeated with aligned magnetic and electric fields. This shift arises fr...

S. Afach, C. A. Baker, G. Ban, G. Bison, K. Bodek… in The European Physical Journal D (2015)

Article

An endoscopic detector for ultracold neutrons

A new versatile detector for ultracold neutrons (UCN) has been built and operated which combines multi-pixel photon counters and GS10 lithium-doped scintillators. Such detectors can be very small and can be us...

L. Göltl, Z. Chowdhuri, M. Fertl, F. Gray, R. Henneck… in The European Physical Journal A (2013)

Article

Diffuse reflection of ultracold neutrons from low-roughness surfaces

We report a measurement of the reflection of ultracold neutrons from flat, large-area plates of different Fermi potential materials with low surface roughness. The results were used to test two diffuse reflect...

F. Atchison, M. Daum, R. Henneck, S. Heule… in The European Physical Journal A (2010)

Chapter and Conference Paper

Towards a new measurement of the neutron electric dipole moment

Precision measurements of particle electric dipole moments (EDMs) provide extremely sensitive means to search for non-standard mechanisms of T (or CP) violation. For the neutron EDM, the upper limit has been r...

G. Ban, T. Lefort, O. Naviliat-Cuncic, G. Rogel, K. Bodek, S. Kistryn… in TCP 2006 (2007)

Article

Towards a new measurement of the neutron electric dipole moment

Precision measurements of particle electric dipole moments (EDMs) provide extremely sensitive means to search for non-standard mechanisms of T (or CP) violation. For the neutron EDM, the upper limit has been r...

G. Ban, K. Bodek, M. Daum, R. Henneck, S. Heule, M. Kasprzak… in Hyperfine Interactions (2006)

Chapter

The Reuven Ramaty High-Energy Solar Spectroscopic Imager (Rhessi)

RHESSI is the sixth in the NASA line of Small Explorer (SMEX) missions and the first managed in the Principal Investigator mode, where the PI is responsible for all aspects of the mission except the launch veh...

R. P. Lin, B. R. Dennis, G. J. Hurford… in The Reuven Ramaty High-Energy Solar Spectr… (2003)

Article

The Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI)

RHESSI is the sixth in the NASA line of Small Explorer (SMEX) missions and the first managed in the Principal Investigator mode, where the PI is responsible for all aspects of the mission except the launch veh...

R.P. Lin, B.R. Dennis, G.J. Hurford, D.M. Smith, A. Zehnder, P.R. Harvey… in Solar Physics (2002)

Article

EUVITA - an extreme UV imaging telescope array with spectral capability

EUVITA is a set of 8 extreme UV and soft X-ray normal incidence imaging telescopes, each of them sensitive in a narrow band (λ/Δλ=15 to 80), centered at wavelengths between 50 and 175 Å. Each telescope has an ...

J. -L. Courvoisier, A. Orr, P. Bühler, A. Zehnder, R. Henneck… in Experimental Astronomy (1993)

Chapter and Conference Paper

Determination of Kerma Factors for A-150 Plastic and Carbon for Neutron Energies Above 20 MeV

Kerma factors for carbon and A-150 tissue-equivalent plastic were measured in nearly monoenergetic neutron beams with energies of 26 and 38 MeV, respectively. The kerma was measured with low-pressure proportio...

U. J. Schrewe, H. J. Brede, R. Henneck… in Nuclear Data for Science and Technology (1992)

Chapter and Conference Paper

Density Measurement of Solid Butanol by γ-ray Attenuation

The γ-ray attenuation in a thick butanol sample has been measured at 293 K and 4 K. The hydrogen density in the butanol target at 4 K was determined with an uncertainty of ±1%.

S. Robinson, R. Henneck, I. Sick, B. van den Brandt… in High Energy Spin Physics (1991)

Chapter and Conference Paper

\(\vec n\vec p\) spin correlation measurements near 50 MeV and the NN force

M. A. Pickar, R. Henneck, C. Gysin… in The Three-Body Force in the Three-Nucleon … (1986)

Chapter and Conference Paper

Effects of the Vacuum-Polarization on Sub-Coulomb ¹²C-¹²C-Scattering

For many years QED-effects have been investigated in atomic and particle physics mainly in leptonic systems. Little information only is available on QED-effects in Coulomb-interaction between hadrons.^1,2) Experim...

D. Vetterli, G. Baur, W. Boeglin, P. Egelhof… in Weak and Electromagnetic Interactions in N… (1986)

Article

Parity nonconservation in the two-nucleon system at low energies

Parity violation (PV) effects inpp-scattering and thermalnp capture are reviewed. Current trends in the analysis of PV effects are outlined and new experimental results obtained at SIN are discussed.

R. Henneck in Czechoslovak Journal of Physics B (1982)

Chapter and Conference Paper

A Study of Fluctuations in the Cross-Section and the Analyzing Power of \( 28SI\left( {\vec D,D} \right) - AND28SI\left( {\vec D,P} \right) - \) Reactions

The statistical model as developed by Ericson¹⁾, Brink and Stephen²⁾ has been applied successfully to many cases, where either low-spin particles interact or the reaction mechanism is known from other sources. In...

R. Henneck, T. B. Clegg, R. F. Haglund… in Proceedings of the Fourth International Sy… (1976)