A direct sampling RF receiver for precise beam charge measurement

ORAL

Abstract

We have developed and tested a direct-sampling RF receiver capable of measuring the amplitude of a 1497MHz sinusoidal beam signal in 0.5ms integration windows to within 8 parts-per-million ($10^{-5}$) relative uncertainty. The receiver is intended for measuring signals from beam current monitoring cavities on the beamline of the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Laboratory. The beam signal strength, frequency, and integration window are consistent with the thus far unmet requirements of the upcoming MOLLER experiment to measure the beam charge for different helicity states.

*The design and construction of the RF receiver was supported by the Laboratory Directed Research and Development (LDRD) funding from Berkeley Lab, provided by the Director, Office of Science, of the U.S. Department of Energy under Contract No.~DE-AC02-05CH11231.

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Publication: arXiv:2110.09575

Presenters

  • Aled V Cuda

    • UC Berkeley

Authors

  • Shujie Li

    • Lawrence Berkeley National Laboratory

  • Aled V Cuda

    • UC Berkeley

  • Yuan Mei

    • Lawrence Berkeley National Laboratory

  • John Arrington

    • Lawrence Berkeley National Laboratory

  • Joseph H Camilleri

    • Virginia Tech

  • James Egelhoff

    • University of California, Berkeley

  • Yury G Kolomensky

    • University of California, Berkeley

  • Ernst P Sichtermann

    • Lawrence Berkeley National Laboratory