TY - JOUR
T1 - Practical solenoid-derived wiggler
AU - Golombek, Harel
AU - Agmon, Eran
AU - Jerby, Eli
PY - 1993/7/1
Y1 - 1993/7/1
N2 - Theoretical model and experimental results of a simple wiggler for free electron lasers with axial magnetic field are presented. The wiggler consists of a staggered array of iron rods placed inside the bore of a solenoid. The high-permeability rods deflect the nearby magnetic field, which thus acquires a periodic transverse component in addition to the longitudinal guiding field. The conversion ratio of the axial magnetic field to the transverse field depends on the geometry only, and is given by a simple analytical expression derived from a dipole-array model. The experimental results agree with the theoretical model. The solenoid derived wiggler with iron rods has the advantage of simplicity and accuracy. It is used in the traveling-wave free-electron maser (TWFEM) experiment at Tel-Aviv University.
AB - Theoretical model and experimental results of a simple wiggler for free electron lasers with axial magnetic field are presented. The wiggler consists of a staggered array of iron rods placed inside the bore of a solenoid. The high-permeability rods deflect the nearby magnetic field, which thus acquires a periodic transverse component in addition to the longitudinal guiding field. The conversion ratio of the axial magnetic field to the transverse field depends on the geometry only, and is given by a simple analytical expression derived from a dipole-array model. The experimental results agree with the theoretical model. The solenoid derived wiggler with iron rods has the advantage of simplicity and accuracy. It is used in the traveling-wave free-electron maser (TWFEM) experiment at Tel-Aviv University.
UR - http://www.scopus.com/inward/record.url?scp=0027624405&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(93)90156-C
DO - 10.1016/0168-9002(93)90156-C
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AN - SCOPUS:0027624405
SN - 0168-9002
VL - 331
SP - 775
EP - 778
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-3
ER -