TY  - JOUR
AU  - Slim, J.
AU  - Rathmann, F.
AU  - Nass, A.
AU  - Soltner, H.
AU  - Gebel, R.
AU  - Pretz, J.
AU  - Heberling, D.
TI  - Polynomial Chaos Expansion method as a tool to evaluate and quantify field homogeneities of a novel waveguide RF Wien Filter
JO  - Nuclear instruments & methods in physics research / A
VL  - 859
SN  - 0168-9002
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - FZJ-2017-02539
SP  - 52–62
PY  - 2017
AB  - For the measurement of the electric dipole moment of protons and deuterons, a novel waveguide RF Wien filter has been designed and will soon be integrated at the COoler SYnchrotron at Jülich. The device operates at the harmonic frequencies of the spin motion. It is based on a waveguide structure that is capable of fulfilling the Wien filter condition View the MathML source(E→⊥B→)by design. The full-wave calculations demonstrated that the waveguide RF Wien filter is able to generate high-quality RF electric and magnetic fields. In reality, mechanical tolerances and misalignments decrease the simulated field quality, and it is therefore important to consider them in the simulations. In particular, for the electric dipole moment measurement, it is important to quantify the field errors systematically. Since Monte-Carlo simulations are computationally very expensive, we discuss here an efficient surrogate modeling scheme based on the Polynomial Chaos Expansion method to compute the field quality in the presence of tolerances and misalignments and subsequently to perform the sensitivity analysis at zero additional computational cost.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000402464700009
DO  - DOI:10.1016/j.nima.2017.03.040
UR  - https://juser.fz-juelich.de/record/828641
ER  -