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Padilla, R.; Gonzalez, E.; Kachiguine, S.; Martinez-Mckinney, F.; Mazza, S.; Nagel, N.; Nizam, M.; Norvell, N.; Potter, E.; Ryan, E.; Schumm, B.A.; Tarka, M.; Wilder, M.; Jacobson, B.; MacArthur, J.; Torrecilla, I. Silva; Smedley, J.; Zhu, D.; Kim, D.; Bohon, J.; Grace, C.; Prakash, T.; Harris, C.T.; Stuart, D.; Freeman, P.; Prebys, E.; Rowling, C.
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 12/2023, Letnik: 1057Journal Article
The composition and performance of three different diamond sensor based pass-through diagnostics are presented. A position-sensitive quadrant sensor was designed and characterized using the XPP beam at the SLAC LCLS, demonstrating a generated-charge resolution of 0.025 pC and a position sensitivity of 2 μm, measurable pulse-by-pulse at a repetition rate of up to 50 MHz. A compact signal path capable of repetition rates up to 1 GHz was used to characterize the charge collection properties of diamond sensors as a function of the density of electron-hole pairs created within the sensor, finding a limit of approximately 1016 electron-hole pairs per cm3 beyond which the collection efficiency and time began to degrade. Finally, a proposed scheme for measuring ionizing radiation at multi-GHz rates is presented, along with results preliminarily demonstrating signal transport capability in excess of 5 GHz.
