• 89 Citations
  • 5 h-Index
20092019
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Research Output 2009 2019

2019
7 Citations (Scopus)

Accuracy of methods for reporting inorganic element concentrations and radioactivity in oil and gas wastewaters from the Appalachian Basin, U.S. Based on an inter-laboratory comparison

Tasker, T. L., Burgos, W. D., Ajemigbitse, M. A., Lauer, N. E., Gusa, A. V., Kuatbek, M., May, D., Landis, J. D., Alessi, D. S., Johnsen, A. M., Kaste, J. M., Headrick, K. L., Wilke, F. D. H., McNeal, M., Engle, M., Jubb, A. M., Vidic, R. D., Vengosh, A. & Warner, N. R., Feb 2019, In : Environmental Science: Processes and Impacts. 21, 2, p. 224-241 18 p.

Research output: Contribution to journalArticle

interlaboratory comparison
Radioactivity
Waste Water
radioactivity
Oils
Neutron Activation Analysis
Neutron activation analysis
Hydraulic fracturing
Waste Water
Sediments

Neutron activation analysis of ancient Italian tile samples

Johnsen, A. M., Durrant, C. B. & Ünlü, K., Dec 1 2019, In : Journal of Radioanalytical and Nuclear Chemistry. 322, 3, p. 1529-1535 7 p.

Research output: Contribution to journalArticle

Neutron Activation Analysis
Neutron activation analysis
Neutrons
Trace Elements
Tile
2018

Assessment of Modern Silicon Photomultiplier Radiation Hardness in a Nuclear Security Context

Wonders, M. A., Johnsen, A. M., Davison, C. C., Cheng, S., Chichester, D. L. & Flaska, M., Nov 2018, 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8824704. (2018 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hardness
Silicon
Noise
hardness
Neutrons
1 Citation (Scopus)
Neutron Activation Analysis
neutron activation analysis
Neutron activation analysis
Trace Elements
Trace elements
2017
1 Citation (Scopus)

Holmium for Use in Cancer Therapy

Shi, Y., Johnsen, A. M. & Di Pasqua, A. J., Nov 2 2017, In : Comments on Inorganic Chemistry. 37, 6, p. 281-300 20 p.

Research output: Contribution to journalReview article

Holmium
Radioisotopes
Photons
Laser surgery
Magnetic resonance
2015
14 Citations (Scopus)

Reactor production of 64Cu and 67Cu using enriched zinc target material

Johnsen, A. M., Heidrich, B. J., Durrant, C. B., Bascom, A. J. & Ünlü, K., Jul 8 2015, In : Journal of Radioanalytical and Nuclear Chemistry. 305, 1, p. 61-71 11 p.

Research output: Contribution to journalArticle

Zinc
Irradiation
Fast Neutrons
Mammals
Neutron flux
2013
3 Citations (Scopus)

A non-aqueous reduction process for purifying 153Gd produced in natural europium targets

Johnsen, A. M., Soderquist, C. Z., McNamara, B. K. & Fisher, D. R., Jan 1 2013, In : Applied Radiation and Isotopes. 82, p. 158-165 8 p.

Research output: Contribution to journalArticle

europium
gadolinium
europium isotopes
flammability
nuclear medicine

Characterization of Italian tile samples using comparative neutron activation analysis

Johnsen, A. M., Durrant, C. B. & Ünlü, K., Jan 1 2013, In : Transactions of the American Nuclear Society. 109, PART 1, p. 71-73 3 p.

Research output: Contribution to journalConference article

Neutron activation analysis
Tile
Nuclear fuels
Curricula

Radiochemistry education and research programs at the Pennsylvania State University

Johnsen, A. M. & Unlu, K., Jan 1 2013, In : Transactions of the American Nuclear Society. 108, p. 295-296 2 p.

Research output: Contribution to journalConference article

Education
2012

Advances in industrial isotope production at the Radiation Science and Engineering Center at Penn State University

Heidrich, B., Johnsen, A. & Ünlü, K., Dec 1 2012, In : Transactions of the American Nuclear Society. 106, p. 303-304 2 p.

Research output: Contribution to journalConference article

Isotopes
Radiation

Reactor based production and purification of 64Cu and 67Cu

Johnsen, A. M., Durrant, C. B., Heidrich, B. J. & Unlu, K., 2012, In : Transactions of the American Nuclear Society. 106, p. 315-316 2 p.

Research output: Contribution to journalArticle

Purification
2011
12 Citations (Scopus)

Dissolution of irradiated commercial UO2 fuels in ammonium carbonate and hydrogen Peroxide

Soderquist, C. Z., Johnsen, A. M., McNamara, B. K., Hanson, B. D., Chenault, J. W., Carson, K. J. & Peper, S. M., Feb 16 2011, In : Industrial and Engineering Chemistry Research. 50, 4, p. 1813-1818 6 p.

Research output: Contribution to journalArticle

Hydrogen peroxide
Hydrogen Peroxide
Carbonates
Dissolution
Uranium
37 Citations (Scopus)

Spectroscopic monitoring of spent nuclear fuel reprocessing streams: An evaluation of spent fuel solutions via Raman, visible, and near-infrared spectroscopy

Bryan, S. A., Levitskaia, T. G., Johnsen, A. M., Orton, C. R. & Peterson, J. M., Sep 1 2011, In : Radiochimica Acta. 99, 9, p. 563-571 9 p.

Research output: Contribution to journalArticle

nuclear fuel reprocessing
Nuclear fuel reprocessing
spent fuels
Near infrared spectroscopy
Spent fuels
14 Citations (Scopus)

Spectroscopic on-line monitoring for process control and safeguarding of radiochemical streams in nuclear fuel reprocessing facilities

Bryan, S. A., Levitskaia, T. G., Casella, A. J., Peterson, J. M., Johnsen, A. M., Lines, A. M. & Thomas, E. M., Mar 2011, Advanced Separation Techniques for Nuclear Fuel Reprocessing and Radioactive Waste Treatment. Elsevier Inc., p. 95-119 25 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Nuclear fuel reprocessing
Spent fuels
Process control
Nuclear fuels
Monitoring
2009

On-line process monitoring of commercial spent nuclear fuel reprocessing streams

Johnsen, A. M., Soderquist, C. Z., Peterson, J. M., Bryan, S. A. & Levitskaia, T. G., Dec 1 2009, In : Transactions of the American Nuclear Society. 101, p. 335-336 2 p.

Research output: Contribution to journalConference article

Nuclear fuel reprocessing
Spent fuels
Process monitoring