Speaker
Description
A very broadband, beta spectrometer, capable of measuring electron energy ranging from 1MeV to 100MeV has been developed and installed for UCLA’s MITHRA facility for plasma wakefield experiments. This spectrometer employs sextupole-like fields to strongly bend electrons into a scintillating screen. Due to the large and complex geometry of the magnet, the magnetic fields are difficult to precisely reconstruct. Furthermore, accurate magnetic field measurements are essential for low-error spectrometer measurements. We have previously developed a reconstruction algorithm that employs a k-nearest neighbors (KNN) search to locally fit harmonic polynomials. To this end, we present both the measurements and finer grid reconstruction of this novel electron spectrometer.
| Working group | WG5 |
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