Integrated quantum voltage noise source for Johnson noise thermometers
| Project/Area Number |
25289126
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
YAMADA TAKAHIRO 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 主任研究員 (00377871)
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| Co-Investigator(Kenkyū-buntansha) |
URANO Chiharu 国立研究開発法人産業技術総合研究所, 物理計測標準研究部門, 主任研究員 (30356589)
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| Co-Investigator(Renkei-kenkyūsha) |
MAEZAWA Masaaki 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 主任研究員 (40357976)
KANEKO Nobuhisa 国立研究開発法人産業技術総合研究所, 物理計測標準研究部門, 研究グループ長 (30371032)
YAMAZAWA Kazuaki 国立研究開発法人産業技術総合研究所, 物理計測標準研究部門, 研究グループ長 (30306873)
HIDAKA Mutsuo 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 上級主任研究員 (20500672)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2015: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2014: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
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| Keywords | 熱力学温度 / 温度計測 / ジョンソン雑音温度計 / 超伝導集積回路 / 単一磁束量子回路 / ジョセフソン接合 |
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| Outline of Final Research Achievements |
We proposed and developed an integrated quantum voltage noise source (IQVNS) based on a superconducting integrated circuit technology to increase performance of Johnson noise thermometry (JNT). We implemented IQVNS chips and successfully confirmed digital circuit operation and pseudo-noise waveform synthesis. We also developed an IQVNS-JNT prototype measurement system and successfully measured the temperatures of the triple point of water and the melting point of gallium with relative uncertainties of 28 ppm and 38 ppm, respectively. Improvement of the JNT system will decrease the uncertainties. These results mean that the IQVNS will make JNT more useful, attractive and important in thermal metrology.
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Report
(4 results)
Research Products
(16 results)
