Author/Authors :
Gialanella، نويسنده , , L and Strieder، نويسنده , , F and Brand، نويسنده , , K and Campajola، نويسنده , , L and DʹOnofrio، نويسنده , , A and Greife، نويسنده , , U and Huttel، نويسنده , , E and Petrazzuolo، نويسنده , , F and Roca، نويسنده , , V and Rolfs، نويسنده , , C and Romano، نويسنده , , M and Romoli، نويسنده , , M and Schmidt، نويسنده , , S and Schulte، نويسنده , , W.H and Terrasi، نويسنده , , F and Trautvetter، نويسنده , , H.P and Zahnow، نويسنده , , D، نويسنده ,
Abstract :
A recoil separator in combination with a windowless gas target has been designed for the measurement of the radiative capture reaction p(7Be, γ)8B. The separator consists of momentum and velocity filters and a ΔE−E detector telescope. The setup was tested quantitatively using the p(12C, γ)13N reaction at the effective energy Ecm = 841 keV. Projectile fluxes were measured directly with Faraday cups and indirectly with elastic backscattering into Si detectors, while the 13N recoil flux was measured directly with the ΔE−E telescope. A suppression of the 12C beam particles by a factor 2 × 10−10 was observed when the system was tuned for the recoil 13Nʹs. Special emphasis was given to the charge state probabilities of the 13N recoils. Possible improvements of the system for the measurement of other capture reactions are discussed.
