Characterisation of a sub-20 ps temporal resolution pulse dilation photomultiplier tube

Autor:	Hartmut Herrmann, T. J. Hilsabeck, Stefan Parker, H. G. Kleinrath, D. Hussey, Yong Ho Kim, L. A. Wilson, Alex Zylstra, J. D. Kilkenny, J. D. Hares, A. Leatherland, Anthony K. L. Dymoke-Bradshaw, A. L. Meadowcroft, Colin Horsfield, Steven James, S. Gales, K. D. Meaney, James Milnes
Rok vydání:	2018
Předmět:	Photomultiplier Materials science business.industry 01 natural sciences Space charge 010305 fluids & plasmas 010309 optics Optics Electric field Temporal resolution 0103 physical sciences Waveform Microchannel plate detector Oscilloscope business Instrumentation Cherenkov radiation
Zdroj:	Review of Scientific Instruments. 89:063506
ISSN:	1089-7623 0034-6748
Popis:	A pulse-dilation photomultiplier tube (PD-PMT) with sub-20 ps temporal resolution has been developed for use with γ-ray-sensitive gas Cherenkov detectors at the National Ignition Facility to improve the diagnosis of nuclear fusion burn history and the areal density of the remaining capsule ablator. The pulse-dilation mechanism entails the application of a time-dependent, ramp waveform to a photocathode-mesh structure, introducing a time-dependent photoelectron accelerating potential. The electric field imparts axial velocity dispersion to outgoing photoelectrons. The photoelectron pulse is dilated as it transits a drift region prior to amplification in a microchannel plate and read out with a digital oscilloscope. We report the first measurements with the prototype PD-PMT demonstrating nominal
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f90295322c5ac0483283793e72a9ec88 https://doi.org/10.1063/1.5031110 Zobrazit plný text záznamu