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Displaying 11826 - 11850 of 73868

An update on dose calibrator settings for nuclides used in nuclear medicine

June 1, 2018
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna
Most clinical measurements of radioactivity, whether for therapeutic or imaging nuclides, rely on commercial reentrant ionization chambers (“dose calibrators”). The National Institute of Standards and Technology (NIST) maintains a battery of representative

DETECTORS FOR LIQUID CHROMATOGRAPHY

June 1, 2018
Author(s)
Thomas J. Bruno, Paris D. Svoronos
The following table provides some comparative data for interpretation of results from the more common detectors applied to high-performance liquid chromatography1-6. In general, the operational parameters provided are for optimized systems, and represent

Development of combined microstructure and structure characterization facility for in situ and operando studies at the Advanced Photon Source

June 1, 2018
Author(s)
Jan Ilavsky, Fan Zhang, Ross N. Andrews, Ivan Kuzmenko, Pete R. Jemian, Lyle E. Levine, Andrew J. Allen
Following many years of evolutionary development, first at the National Synchrotron Light Source, Brookhaven National Laboratory, and then at the Advanced Photon Source (APS), Argonne National Laboratory, the APS ultra-small-angle X-ray scattering (USAXS)

EDS Microanalysis: Pushing the Limits

June 1, 2018
Author(s)
Nicholas Ritchie, Dale E. Newbury, Michael Mengason, Heather Lowers
It is a great time to be a microanalyst. After a few decades of incremental progress in energy dispersive X-ray spectrometry (EDS), the last decade has seen the accuracy and precision surge forward. Today, the question is not whether EDS is generally

Highly Reversible Zinc Metal Anode for Aqueous Batteries

June 1, 2018
Author(s)
Fei Wang, Oleg Borodin, Tao Gao, Xiulin Fan, Wei Sun, Fudong Han, Antonio Faraone, Joseph Dura, Kang Xu, Chunsheng Wang
Metallic zinc (Zn) has been regarded as an ideal anode material for aqueous batteries, because of its high theoretical capacity (820 mAh/g), low electrochemical potential (-0.762 V vs. SHE), high abundance, low toxicity and intrinsic safety. There has been

Imaging linear and circular polarization features in leaves with complete Mueller matrix polarimetry

June 1, 2018
Author(s)
C.H. L. Patty, David Luo, Frans Snik, Freek Ariese, Wybren J. Buma, Inge L. ten Kate, Rob J. van Spanning, William Sparks, Thomas Germer, Gy?z? Garab, Michael W. Kudenov
Spectropolarimetry of intact plant leaves allows to probe the molecular architecture of vegetation photosynthesis in a non-invasive and non-destructive way and, as such, can offer a wealth of physiological information. In addition to the molecular signals

Nanoscale photocurrent mapping in perovskite solar cells

June 1, 2018
Author(s)
Yohan Yoon, Dongheon Ha, Ik Jae Park, Paul M. Haney, Sangwook Lee, Nikolai Zhitenev
In this work, we study spatially-resolved generation of photocurrent of methylammonium lead iodide (CH3NH3PbI3) perovskite solar cells to reveal the microscopic effects of annealing temperature and degradation under light exposure. Correlating a novel

Optimization of 6 LiF:ZnS(Ag) Scintillator Light Yield using GEANT4

June 1, 2018
Author(s)
Y. Yehuda-Zada, Kevin N. Pritchard, Jeffrey B. Ziegler, P. Yvonne Barnes, Kerry Siebein, M. Jackson, C. Hurlbut, Y. Kadmon, Y. Cohen, R. M. Ibberson, Charles Majkrzak, Nicholas C. Maliszewskyj, I. Orion, A. Osovizky
A new cold neutron detector has been developed at the NCNR for the CANDoR project. Geometric and performance constraints dictate that this detector be exceptionally thin (2nm). For this reason, the design of the detector consists of 6LiF:ZnS(Ag)

Standard reference data workshop report:

June 1, 2018
Author(s)
Debra Kaiser, Neil Alderoty, Richard Cavanagh, Barbara Guttman, Robert Hanisch, Adam Morey, Jeanita Pritchett, Yuri Ralchenko, Stacy Schuur, William Wallace
Displaying 11826 - 11850 of 73868
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