Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Giblin, Stephen"'
A well-characterised sample of silicon tunable-barrier electron pump has been operated at a frequency of 2 GHz using a custom drive waveform, generating a pump current of 320 pA. Precision measurements of the current were made as a function of pump c
Externí odkaz:
http://arxiv.org/abs/2301.04499
Autor:
Giblin, Stephen, Tompkins, Jordan
New technology, the ultrastable low-noise current amplifier and the electron pump, provide new methods for making traceable measurements of small DC electric currents. We review four traceability routes for small current measurements and discuss the
Externí odkaz:
http://arxiv.org/abs/2003.12669
Autor:
Giblin, Stephen, Mykkänen, Emma, Kemppinen, Antti, Immonen, Pekka, Manninen, Antti, Jenei, Máté, Möttönen, Mikko, Yamahata, Gento, Fujiwara, Akira, Kataoka, Masaya
A silicon electron pump operating at the temperature of liquid helium has demonstrated repeatable operation with sub-ppm accuracy. The pump current, approximately 168 pA, is measured by three laboratories, and the measurements agree with the expected
Externí odkaz:
http://arxiv.org/abs/1912.02042
Autor:
Giblin, Stephen P., Fujiwara, Akira, Yamahata, Gento, Bae, Myung-Ho, Kim, Nam, Rossi, Alessandro, Möttönen, Mikko, Kataoka, Masaya
Publikováno v:
Metrologia vol. 56, 044004 (2019)
We review recent precision measurements on semiconductor tunable-barrier electron pumps operating in a ratchet mode. Seven studies on five different designs of pumps have reported measurements of the pump current with relative total uncertainties aro
Externí odkaz:
http://arxiv.org/abs/1901.05218
Publikováno v:
IEEE transactions in instrumentation and measurement, 2019
An ultrastable low-noise current amplifier (ULCA) has been transferred between two laboratories, NPL and PTB, four times, with three of the transfers yielding a relative change in the trans-resistance gain of less than $2 \times 10^{-7}$. This is a n
Externí odkaz:
http://arxiv.org/abs/1808.09741
Autor:
Giblin, Stephen P.
Publikováno v:
Metrologia vol. 56, 015014 (2019)
The uncertainty for calibrating $100$ M$\Omega$ and $1$ G$\Omega$ resistors using the NPL high-resistance CCC bridge has been re-evaluated, resulting in combined uncertainties of $\sim 0.1$ $\mu\Omega/ \Omega$, considerably smaller than the CMC entri
Externí odkaz:
http://arxiv.org/abs/1808.09214
Autor:
Giblin, Stephen P., Lorusso, Giuseppe
Publikováno v:
Review of Scientific Instruments vol. 90, 014705 (2019)
We compared the performance of a commercial ammeter and a home-made integrating electrometer in reading ionisation chamber currents less than 100 pA. The integrating electrometer charges a capacitor with the unknown current and measures the resulting
Externí odkaz:
http://arxiv.org/abs/1808.09217
Autor:
Drung, Dietmar, Krause, Christian, Giblin, Stephen P., Djordjevic, Sophie, Piquemal, Francois, Séron, Olivier, Rengnez, Florentin, Götz, Martin, Pesel, Eckart, Scherer, Hansjörg
An interlaboratory comparison of small-current generation and measurement capability is presented with the ultrastable low-noise current amplifier (ULCA) acting as travelling standard. Various measurements at direct currents between 0.16 nA and 13 nA
Externí odkaz:
http://arxiv.org/abs/1507.00127
Publikováno v:
Metrologia; Oct2023, Vol. 60 Issue 5, p1-9, 9p
Autor:
Murray, Roy, Perron, Justin K., Stewart, M. D., Levy, Antonio L., See, Patrick, Giblin, Stephen P., Fletcher, Jonathan D., Kataoka, Masaya, Zimmerman, Neil M.
Publikováno v:
Journal of Applied Physics; 3/7/2020, Vol. 127 Issue 9, p1-11, 11p, 2 Diagrams, 2 Charts, 8 Graphs