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physics.ins-det2016★ 6 cited
Low magnetic Johnson noise electric field plates for precision measurement
I. M. Rabey, J. A. Devlin, E. A. Hinds +1
We describe a parallel pair of high voltage electric field plates designed and constructed to minimise magnetic Johnson noise. They are formed by laminating glass substrates with c…
physics.ins-det2013
Stochastic multi-channel lock-in detection
J J Hudson, M R Tarbutt, B E Sauer +1
High-precision measurements benefit from lock-in detection of small signals. Here we discuss the extension of lock-in detection to many channels, using mutually orthogonal modulati…
physics.ins-det2008★ 12 cited
A robust floating nanoammeter
B. E. Sauer, D. M. Kara, J. J. Hudson +2
A circuit capable of measuring nanoampere currents while floating at voltages up to at least 25kV is described. The circuit relays its output to ground potential via an optical fib…