Research output: Contribution to conference - Without ISBN/ISSN › Conference paper
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper
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TY - CONF
T1 - Eddy current studies from the undulator-based positron source target wheel prototype
AU - Bailey, I. R.
AU - Clarke, J. A.
AU - Scott, D. J.
AU - Brown, C. G.
AU - Gronberg, J.
AU - Hagler, L. B.
AU - Piggott, W. T.
AU - Jenner, L. J.
AU - Zang, L.
PY - 2010/5/19
Y1 - 2010/5/19
N2 - The efficiency of future positron sources for the next generation of high-energy particle colliders (e.g. ILC, CLIC, LHeC) can be improved if the positron-production target is immersed in the magnetic field of adjacent capture optics. If the target is also rotating due to heat deposition considerations then eddy currents may be induced and lead to additional heating and stresses. In this paper we present data from a rotating target wheel prototype for the baseline ILC positron source. The wheel has been operated at revolution rates up to 1800rpm in fields of the order of 1 Tesla. Comparisons are made between torque data obtained from a transducer on the target drive shaft and the results of finite-element simulations. Rotordynamics issues are presented and future experiments on other aspects of the positron source target station are considered.
AB - The efficiency of future positron sources for the next generation of high-energy particle colliders (e.g. ILC, CLIC, LHeC) can be improved if the positron-production target is immersed in the magnetic field of adjacent capture optics. If the target is also rotating due to heat deposition considerations then eddy currents may be induced and lead to additional heating and stresses. In this paper we present data from a rotating target wheel prototype for the baseline ILC positron source. The wheel has been operated at revolution rates up to 1800rpm in fields of the order of 1 Tesla. Comparisons are made between torque data obtained from a transducer on the target drive shaft and the results of finite-element simulations. Rotordynamics issues are presented and future experiments on other aspects of the positron source target station are considered.
KW - physics
KW - linear collider
KW - positron source
KW - target
KW - prototype
M3 - Conference paper
SP - 4125
EP - 4127
T2 - The 1st International Particle Accelerator Conference
Y2 - 23 May 2010 through 28 May 2010
ER -