activity
20092017
most citedA magnetically shielded room with ultra low residual field and gradient

107 citations · 131 across the 6 of their papers we have counts for

collaborators

6 papers

physics.ins-det2017

Consistent description of UCN transport properties

S. Wlokka, P. Fierlinger, A. Frei +6

We have investigated the diffuse reflection probabilities of Replica guides for ultra-cold neutrons (UCN) using the so-called helium method. For the first time we could establish a…

physics.ins-det2014★ 107 cited

A magnetically shielded room with ultra low residual field and gradient

I. Altarev, E. Babcock, D. Beck +29

A versatile and portable magnetically shielded room with a field of (700 \pm 200) pT within a central volume of 1m x 1m x 1m and a field gradient less than 300 pT/m is described. T…

nucl-ex2010

Solid oxygen as converter for the production of ultra-cold neutrons

A. Frei, F. Böhle, R. Bozhanova +5

We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optic…

nucl-ex2009★ 5 cited

Production of Ultra-Cold-Neutrons in Solid α-Oxygen

E. Gutsmiedl, A. Frei, F. Boehle +4

Our recent neutron scattering measurements of phonons and magnons in solid α-oxygen have led us to a new understanding of the production mechanismen of ultra-cold-neutrons (UCN) in…

nucl-ex2009★ 19 cited

New Understanding of Ultra-Cold Neutron Production in Solid Deuterium

A. Frei, E. Gutsmiedl, C. Morkel +5

Our recent neutron scattering measurements of phonons and other quasi-particle excitations in solid deuterium (sD) and the extraction of the density of states for phonons and r…

cond-mat.mtrl-sci2009

Density of states in solid deuterium: Inelastic neutron scattering study

A. Frei, E. Gutsmiedl, C. Morkel +6

The dynamics of solid deuterium (sD2) is studied by means of inelastic scattering (coherent and incoherent) of thermal and cold neutrons at different temperatures and para-ortho ra…