Author/Authors :
Piegsa، نويسنده , , F.M. and van den Brandt، نويسنده , , B. and Glنttli، نويسنده , , H. and Hautle، نويسنده , , P. and Kohlbrecher، نويسنده , , J. and Konter، نويسنده , , J.A. and Schlimme، نويسنده , , B.S. and Zimmer، نويسنده , , O.، نويسنده ,
Abstract :
A Ramsey apparatus for cold, polarised neutrons is described, which enables us to measure neutron precession angles with an absolute accuracy of about 1 ∘ . This is necessary to perform a planned high-accuracy measurement of the incoherent neutron scattering length b i , d of the deuteron. The performance of the apparatus is demonstrated in systematic stability measurements as well as in two selected examples using samples containing polarised nuclear spins.
Keywords :
Spin-dependent scattering length , Neutron physics , Ramsey resonance technique , Few-body physics , Dynamic nuclear polarisation
