The Tynode

A new vacuum electron multiplier

Journal article (2017)

Authors

H. van der Graaf Nikhef, RST/Neutron and Positron Methods in Materials - AS
Pasqualina M Sarro Electronic Components, Technology and Materials - EEMCS
Pasqualina M. Sarro Electronic Components, Technology and Materials - EEMCS
John Sinsheimer Brookhaven National Laboratory
John Smedley Brookhaven National Laboratory
S. Tao Eindhoven University of Technology
A.M.M.G. Theulings RST/Neutron and Positron Methods in Materials - AS , Nikhef
Cornelis Vuik Numerical Analysis - EEMCS
N.V. Budko Numerical Analysis - EEMCS
H.W. Chan Electronic Components, Technology and Materials - EEMCS
C.W. Hagen ImPhys/Charged Particle Optics
C. W. Hagen ImPhys/Charged Particle Optics
C.C.T. Hansson Nikhef, ImPhys/Charged Particle Optics
Gert Nützel Photonis
V. Prodanovic Electronic Components, Technology and Materials - EEMCS
Research Group
RST/Neutron and Positron Methods in Materials (AS) (TU Delft)
More Info
expand_more

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Neutron and Positron Methods in Materials

Abstract

By placing, in vacuum, a stack of transmission dynodes (tynodes) on top of a CMOS pixel chip, a single free electron detector could be made with outstanding performance in terms of spatial and time resolution. The essential object is the tynode: an ultra thin membrane, which emits, at the impact of an energetic electron on one side, a multiple of electrons at the other side. The electron yields of tynodes have been calculated by means of GEANT-4 Monte Carlo simulations, applying special low-energy extensions. The results are in line with another simulation based on a continuous charge-diffusion model. By means of Micro Electro Mechanical System (MEMS) technology, tynodes and test samples have been realized. The secondary electron yield of several samples has been measured in three different setups. Finally, several possibilities to improve the yield are presented.

Files

1_s2.0_S0168900216312311_main.... (pdf)
(pdf | 2.67 Mb)
Unknown license

Download not available