Abstract:
We have developed a 1:30000 winding ratio cryogenic current comparator (CCC) for measurement of small currents, e.g., generated by a single electron transport device. A d...Show MoreMetadata
Abstract:
We have developed a 1:30000 winding ratio cryogenic current comparator (CCC) for measurement of small currents, e.g., generated by a single electron transport device. A dedicated low-noise SQUID is used for the readout, which allows reaching a sensitivity close to ideal, that is without loss of sensitivity in the flux transformer coupling the CCC and the SQUID. The CCC-SQUID equivalent current input noise using a 1:30 000 winding ratio is 2.1 fA/Hz/sup 1/2/, measured down to 0.1 Hz. Room temperature impedance measurements on CCCs appear to be a useful method for the determination of the screening by shields surrounding the CCC as well as for the detection of internal CCC resonances.
Published in: IEEE Transactions on Instrumentation and Measurement ( Volume: 52, Issue: 2, April 2003)
Department of Electricity and Magnetism, NMI Van Swinden Laboratorium B. V, Delft, Netherlands
Gert Rietveld was born in The Netherlands in 1965. He received the M.Sc. and Ph.D. degrees in physics from the Delft University of Technology, Delft, The Netherlands, in 1988 and 1993, respectively.
In 1993, he joined the NMi Van Swinden Laboratorium, Delft, where he works in the DC/LF group of the Electrical Metrology Department. He is involved in the development of electrical quantum standards, especially the quantum Hal...Show More
Gert Rietveld was born in The Netherlands in 1965. He received the M.Sc. and Ph.D. degrees in physics from the Delft University of Technology, Delft, The Netherlands, in 1988 and 1993, respectively.
In 1993, he joined the NMi Van Swinden Laboratorium, Delft, where he works in the DC/LF group of the Electrical Metrology Department. He is involved in the development of electrical quantum standards, especially the quantum Hal...View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Elena Bartolomé was born in Zaragoza, Spain, on August 21, 1974. She received the M.Sc. degree in physics from the University of Zaragoza in 1997, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, and the University of Zaragoza in 2002.
She has worked on low Tc superconducting sensors (SQUIDs, cryogenic current comparator systems), with application in quantum metrology. At pr...Show More
Elena Bartolomé was born in Zaragoza, Spain, on August 21, 1974. She received the M.Sc. degree in physics from the University of Zaragoza in 1997, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, and the University of Zaragoza in 2002.
She has worked on low Tc superconducting sensors (SQUIDs, cryogenic current comparator systems), with application in quantum metrology. At pr...View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Javier Sesé is from Binéfar, Spain. He received the M.Sc. and Ph.D. degrees in physics from Zaragoza University, Zaragoza, Spain, in 1993 and 1999, respectively.
Since 1993, he has been with the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza. He has been working on electrical quantum metrology, applied superconductivity, and low-temperature instrumentation. Today, he is in a post-doctorate stay...Show More
Javier Sesé is from Binéfar, Spain. He received the M.Sc. and Ph.D. degrees in physics from Zaragoza University, Zaragoza, Spain, in 1993 and 1999, respectively.
Since 1993, he has been with the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza. He has been working on electrical quantum metrology, applied superconductivity, and low-temperature instrumentation. Today, he is in a post-doctorate stay...View more
Department of Electricity and Magnetism, NMI Van Swinden Laboratorium B. V, Delft, Netherlands
P. de la Court, photograph and biography not available at the time of publication.
P. de la Court, photograph and biography not available at the time of publication.View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Jaap Flokstra received the M.Sc. degree in applied physics from the University of Delft, Delft, The Netherlands, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, in 1971 and 1977, respectively.
He has been an Associate Professor in the Department of Applied Physics, University of Twente, since 1985. His current interest is in the development and application of low and high T...Show More
Jaap Flokstra received the M.Sc. degree in applied physics from the University of Delft, Delft, The Netherlands, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, in 1971 and 1977, respectively.
He has been an Associate Professor in the Department of Applied Physics, University of Twente, since 1985. His current interest is in the development and application of low and high T...View more
ICMA, CSIC. University of Zaragoza, Zaragoza, Spain
Conrado Rillo was born in Alcañiz, Spain, on May 8, 1957. He received the M.Sc. degree in physics and the Ph.D. degree from the University of Zaragoza, Zaragoza, Spain, in 1982 and 1986, respectively.
Since 1987, he has been with the research staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working in the fields of materials research and advanced instrumentation. H...Show More
Conrado Rillo was born in Alcañiz, Spain, on May 8, 1957. He received the M.Sc. degree in physics and the Ph.D. degree from the University of Zaragoza, Zaragoza, Spain, in 1982 and 1986, respectively.
Since 1987, he has been with the research staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working in the fields of materials research and advanced instrumentation. H...View more
ICMA, CSIC. University of Zaragoza, Zaragoza, Spain
Agustín Camón was born in Peñaranda de Bracamonte, Spain, on March 17, 1962. He received the Ph.D. degree in physics from the University of Zaragoza, Spain, in 1996.
Since 1990, he has been with the Technical Staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working on quantum metrology, applied superconductivity, and low temperature instrumentation.
Agustín Camón was born in Peñaranda de Bracamonte, Spain, on March 17, 1962. He received the Ph.D. degree in physics from the University of Zaragoza, Spain, in 1996.
Since 1990, he has been with the Technical Staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working on quantum metrology, applied superconductivity, and low temperature instrumentation.View more
Contents Department of Electricity and Magnetism, NMI Van Swinden Laboratorium B. V, Delft, Netherlands
Gert Rietveld was born in The Netherlands in 1965. He received the M.Sc. and Ph.D. degrees in physics from the Delft University of Technology, Delft, The Netherlands, in 1988 and 1993, respectively.
In 1993, he joined the NMi Van Swinden Laboratorium, Delft, where he works in the DC/LF group of the Electrical Metrology Department. He is involved in the development of electrical quantum standards, especially the quantum Hall resistance standard and the current standard based on single electron tunnelling effects. He is also active in evaluation of “self-calibrating” instruments.
Gert Rietveld was born in The Netherlands in 1965. He received the M.Sc. and Ph.D. degrees in physics from the Delft University of Technology, Delft, The Netherlands, in 1988 and 1993, respectively.
In 1993, he joined the NMi Van Swinden Laboratorium, Delft, where he works in the DC/LF group of the Electrical Metrology Department. He is involved in the development of electrical quantum standards, especially the quantum Hall resistance standard and the current standard based on single electron tunnelling effects. He is also active in evaluation of “self-calibrating” instruments.View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Elena Bartolomé was born in Zaragoza, Spain, on August 21, 1974. She received the M.Sc. degree in physics from the University of Zaragoza in 1997, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, and the University of Zaragoza in 2002.
She has worked on low Tc superconducting sensors (SQUIDs, cryogenic current comparator systems), with application in quantum metrology. At present, she has a post-doctorate position at the Institute of Material Sciences Barcelona (ICMAB), Barcelona, Spain, where she works on YBCO power applications and the development of chemically prepared coated conductors.
Elena Bartolomé was born in Zaragoza, Spain, on August 21, 1974. She received the M.Sc. degree in physics from the University of Zaragoza in 1997, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, and the University of Zaragoza in 2002.
She has worked on low Tc superconducting sensors (SQUIDs, cryogenic current comparator systems), with application in quantum metrology. At present, she has a post-doctorate position at the Institute of Material Sciences Barcelona (ICMAB), Barcelona, Spain, where she works on YBCO power applications and the development of chemically prepared coated conductors.View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Javier Sesé is from Binéfar, Spain. He received the M.Sc. and Ph.D. degrees in physics from Zaragoza University, Zaragoza, Spain, in 1993 and 1999, respectively.
Since 1993, he has been with the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza. He has been working on electrical quantum metrology, applied superconductivity, and low-temperature instrumentation. Today, he is in a post-doctorate stay at the University of Twente, Enschede, The Netherlands, where he works on microelectromechanical systems for precision applications.
Javier Sesé is from Binéfar, Spain. He received the M.Sc. and Ph.D. degrees in physics from Zaragoza University, Zaragoza, Spain, in 1993 and 1999, respectively.
Since 1993, he has been with the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza. He has been working on electrical quantum metrology, applied superconductivity, and low-temperature instrumentation. Today, he is in a post-doctorate stay at the University of Twente, Enschede, The Netherlands, where he works on microelectromechanical systems for precision applications.View more
Department of Electricity and Magnetism, NMI Van Swinden Laboratorium B. V, Delft, Netherlands
P. de la Court, photograph and biography not available at the time of publication.
P. de la Court, photograph and biography not available at the time of publication.View more
Low Temperature Division, Applied Physics Faculty, University of Twente, Enschede, Netherlands
Jaap Flokstra received the M.Sc. degree in applied physics from the University of Delft, Delft, The Netherlands, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, in 1971 and 1977, respectively.
He has been an Associate Professor in the Department of Applied Physics, University of Twente, since 1985. His current interest is in the development and application of low and high Tc SQUID-based sensors in areas as biomagnetism, particle detection, metrology, and very fast electronics.
Jaap Flokstra received the M.Sc. degree in applied physics from the University of Delft, Delft, The Netherlands, and the Ph.D. degree in applied physics from the University of Twente, Enschede, The Netherlands, in 1971 and 1977, respectively.
He has been an Associate Professor in the Department of Applied Physics, University of Twente, since 1985. His current interest is in the development and application of low and high Tc SQUID-based sensors in areas as biomagnetism, particle detection, metrology, and very fast electronics.View more
ICMA, CSIC. University of Zaragoza, Zaragoza, Spain
Conrado Rillo was born in Alcañiz, Spain, on May 8, 1957. He received the M.Sc. degree in physics and the Ph.D. degree from the University of Zaragoza, Zaragoza, Spain, in 1982 and 1986, respectively.
Since 1987, he has been with the research staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working in the fields of materials research and advanced instrumentation. He is presently Research Professor and Head of the Low Temperature Physics Department at ICMA. His current research interests include magnetic and superconducting materials, quantum metrology and applied superconductivity. He is also responsible for the Scientific Instrumentation Service of the University of Zaragoza.
Conrado Rillo was born in Alcañiz, Spain, on May 8, 1957. He received the M.Sc. degree in physics and the Ph.D. degree from the University of Zaragoza, Zaragoza, Spain, in 1982 and 1986, respectively.
Since 1987, he has been with the research staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working in the fields of materials research and advanced instrumentation. He is presently Research Professor and Head of the Low Temperature Physics Department at ICMA. His current research interests include magnetic and superconducting materials, quantum metrology and applied superconductivity. He is also responsible for the Scientific Instrumentation Service of the University of Zaragoza.View more
ICMA, CSIC. University of Zaragoza, Zaragoza, Spain
Agustín Camón was born in Peñaranda de Bracamonte, Spain, on March 17, 1962. He received the Ph.D. degree in physics from the University of Zaragoza, Spain, in 1996.
Since 1990, he has been with the Technical Staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working on quantum metrology, applied superconductivity, and low temperature instrumentation.
Agustín Camón was born in Peñaranda de Bracamonte, Spain, on March 17, 1962. He received the Ph.D. degree in physics from the University of Zaragoza, Spain, in 1996.
Since 1990, he has been with the Technical Staff at the Institute of Material Science of Aragon (ICMA), CSIC-University of Zaragoza, where he has been working on quantum metrology, applied superconductivity, and low temperature instrumentation.View more
