Analytical Developments for High-Precision Measurements of W Isotopes in Iron Meteorites

2007 ◽  
Vol 79 (8) ◽  
pp. 3148-3154 ◽  
Author(s):  
Liping Qin ◽  
Nicolas Dauphas ◽  
Philip E. Janney ◽  
Meenakshi Wadhwa
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Iron Meteorites

Prospects for high precision measurements on muonic atoms at the front end of a muon collider

1998 ◽  
Author(s):  
D. Kawall ◽  
M. G. Boshier ◽  
V. W. Hughes ◽  
K. Jungmann ◽  
W. Liu ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Measurements ◽  
Muonic Atoms ◽  
Front End ◽  
Muon Collider

Cold atom interferometry for inertial sensing in the field

2020 ◽  
Vol 9 (5) ◽  
pp. 221-225
Author(s):  
Ravi Kumar ◽  
Ana Rakonjac
Keyword(s):  
High Precision ◽  
Cold Atoms ◽  
Cold Atom ◽  
Atom Interferometry ◽  
Precision Measurements ◽  
Inertial Sensing ◽  
Fundamental Physics ◽  
Recent Developments ◽  
Resource Exploration ◽  
Atom Interferometers

AbstractAtom interferometry is one of the most promising technologies for high precision measurements. It has the potential to revolutionise many different sectors, such as navigation and positioning, resource exploration, geophysical studies, and fundamental physics. After decades of research in the field of cold atoms, the technology has reached a stage where commercialisation of cold atom interferometers has become possible. This article describes recent developments, challenges, and prospects for quantum sensors for inertial sensing based on cold atom interferometry techniques.

High-Precision Measurements of Lower Atmospheric Temperature Based on Pure Rotational Raman Lidar

2015 ◽  
Vol 58 (4) ◽  
pp. 313-324 ◽  
Author(s):  
LI Ya-Juan ◽  
SONG Sha-Lei ◽  
LI Fa-Quan ◽  
CHENG Xue-Wu ◽  
CHEN Zhen-Wei ◽  
...  
Keyword(s):  
High Precision ◽  
Atmospheric Temperature ◽  
Precision Measurements ◽  
Raman Lidar

High Precision Measurements on Helium at 1083 nm

2001 ◽  
pp. 314-327 ◽  
Author(s):  
Pablo Cancio Pastor ◽  
Paolo De Natale ◽  
Giovanni Giusfredi ◽  
Francesco S. Pavone ◽  
Massimo Inguscio
Keyword(s):  
High Precision ◽  
Precision Measurements

scholarly journals Maintaining consistent traceability in high precision isotope measurements of CO<sub>2</sub>: verifying atmospheric trends of δ<sup>13</sup>C

2012 ◽  
Vol 5 (3) ◽  
pp. 4003-4040 ◽  
Author(s):  
L. Huang ◽  
A. Chivulescu ◽  
D. Ernst ◽  
W. Zhang ◽  
Y.-S. Lee
Keyword(s):  
High Precision ◽  
Mean Value ◽  
Rate Of Change ◽  
Atmospheric Co2 ◽  
Precision Measurements ◽  
Total Change ◽  
History Of ◽  
Ambient Measurements ◽  
Isotope Measurements ◽  
Δ13c And Δ18o

Abstract. Maintaining consistent traceability of high precision measurements of CO2 isotopes is critical in being able to observe accurate atmospheric trends of δ13C (CO2). Although a number of laboratories/organizations around the world have been involved in baseline measurements of atmospheric CO2 isotopes for several decades, the reports on their traceability measures are rare. In this paper, a principle and an approach for the traceability maintenance of high precision isotope measurements (δ13C and δ18O) in atmospheric CO2 is described. The uncertainties of the traceability have been estimated based on the history of annual calibrations over the last 10 yr. The overall uncertainties of CO2 isotope measurements for individual ambient samples carried out by our program at Environment Canada are estimated (excluding the uncertainty associated with the sampling). The values are 0.02‰ and 0.05‰ in δ13C and δ18O, respectively, close to the WMO targets for data compatibility. The annual rate of change in δ13C of the primary anchor used in our program (which is the laboratory standard linking ambient measurements back to the primary VPDB scale) is close to zero (−0.0016 ± 0.0012‰ per year) over the period of 10 yr (2001–2011). The average annual decreasing rate of δ13C in air CO2 measurements at Alert over the period from 1999 to 2010 has been confirmed and verified, which is −0.025 ± 0.003‰ per year. The total change of δ13C in the annual mean value during this period is ∼−0.27‰. The concept of "Big Delta" is introduced and its role in maintaining traceability of the isotope measurements is described and discussed extensively. Finally, the challenges and a strategy for maintaining traceability are also discussed and suggested.

Trigger Alarm: A Smart NFC Sniffer for High-Precision Measurements

2020 ◽  
pp. 186-200
Author(s):  
Martin Erb ◽  
Christian Steger ◽  
Martin Troyer ◽  
Josef Preishuber-Pflügl
Keyword(s):  
High Precision ◽  
Precision Measurements
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