Author/Authors :
Calvo، نويسنده , , E. and Cerrada، نويسنده , , M. and Gil-Botella، نويسنده , , I. and Palomares، نويسنده , , C. and Rodrيguez، نويسنده , , I. and Toral، نويسنده , , F. Flores-Verdugo، نويسنده , , A.، نويسنده ,
Abstract :
A study has been performed in order to find the optimal solution for the magnetic shielding of the 10 in. photomultipliers which will be used in the Double Chooz neutrino experiment under a very low magnetic field (less than 2 G). The results obtained with analytical and numerical calculations are compared with measurements made using test prototypes of several magnetic materials, with different dimensions and from different manufacturers. An exhaustive analysis of the magnetic materials was needed to understand the observed disagreement between calculations and test results obtained at low field values.
Keywords :
Mumetal , Cylindrical shielding , Helmholtz coils , Double Chooz , Photomultiplier , Low magnetic field , Passive magnetic shielding , Reactor neutrino experiments
