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Search Publications by: Lisa R. Karam (Fed)

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Displaying 1 - 25 of 47

Uncertainties in Internal Gas Counting

May 22, 2015
Author(s)
Michael P. Unterweger, L Johansson, M Rodriques, A Yunoki, Lisa R. Karam
The uncertainties in internal gas counting can, for the most part, be split into two areas: counting and sample gas measurement uncertainties and the counting uncertainties. The former includes measurements of counting and sample gas quantities and

Significant disparity in base and sugar damage in DNA by neutron and electron irradiation

July 1, 2014
Author(s)
Pawel Jaruga, Jeffrey S. Nico, Lisa R. Karam, Olga Timofeeva, William Blakely, M Miral Dizdar, D Pang
In this study a comparison of the effects of high-LET neutrons with low-LET electrons on irradiation of aqueous DNA solutions was investigated to characterize for potential neutron signatures on DNA damage induction. Ionizing radiations generate numerous

Measurement Traceability in Medical Physics

January 1, 2014
Author(s)
Lisa R. Karam
Medical physics, the joining of physics with healthcare, requires a level of quality assurance beyond many applications of the physical sciences. Always the health, and often the life, of the patient depends on the precise and accurate implementation of

Laboratories New to the ICRM

March 4, 2012
Author(s)
Lisa R. Karam, Marios J. Anagnostakis, Arunas Gudelis, Pujadi Marsoem, Alexander Mauring, Gatot Wurdiyanto, Ulku Yucel
The Scientific Committee of the ICRM decided, for the 2011 Conference, to present laboratories that are at a key developmental stage in establishing, expanding or applying radionuclide metrology capabilities. The expansion of radionuclide metrology

Radiation-Based Quantitative Bioimaging at NIST

August 1, 2009
Author(s)
Lisa R. Karam
The National Institute of Standards and Technology (NIST) provides the physical measurements and standards in a variety of fields, including for ionizing radiation, for the US. Building on a long history of providing standards for medical x rays and

Application of the CIPM MRA to Radionuclide Metrology

June 6, 2007
Author(s)
Lisa R. Karam
The adoption of the Mutual Recognition Arrangement by the CIPM in 1996 had an almost immediate affect on the approach national measurement laboratories took in the measurement laboratories took in the measurement of radioactivity, and how their abilities