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Research Output 1990 2019

  • 564 Citations
  • 10 h-Index
  • 51 Article
  • 37 Conference article
  • 12 Conference contribution
  • 1 Paper
2019
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

State feedback reactor control using a vanadium and rhodium self-powered neutron detectors

Corak, G., Turso, J. A. & Unlu, K., Jan 1 2019, 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. American Nuclear Society, p. 618-628 11 p. (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019).

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

Neutron detectors
Rhodium
State feedback
Vanadium
Nuclear reactors

Wireless reactor power distribution measurement system utilizing an in-core radiation and temperature tolerant wireless transmitter and a radiation-harvesting power supply

Carvajal, J. V., Stafford, S. C., Heibel, M. D., Sirianni, P. M., Heagy, M. M., Flammang, R. W., Arlia, N. G., Turso, J. A. & Unlu, K., Jan 1 2019, 11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019. American Nuclear Society, p. 246-257 12 p. (11th Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2019).

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

Transmitters
Radiation
Neutron detectors
Temperature
Thermocouples
2018

Digital control and safety system modernization for the penn state trIGA reactor

Turso, J. & Ünlü, K., Jan 1 2018, AISTech 2018 Proceedings - Iron and Steel Technology Conference and Exposition. Association for Iron and Steel Technology, AISTECH, p. 317-320 4 p. (AISTech - Iron and Steel Technology Conference Proceedings; vol. 2018-May).

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

Digital control systems
Modernization
Security systems

Digital control and safety system modernization for the penn state trIGA reactor

Turso, J. A. & Unlu, K., Jan 1 2018, In : Transactions of the American Nuclear Society. 118, p. 317-320 4 p.

Research output: Contribution to journalConference article

Digital control systems
Modernization
Security systems
1 Citation (Scopus)
Neutron Activation Analysis
neutron activation analysis
Neutron activation analysis
Trace Elements
Trace elements

New core-moderator assembly and neutron beam ports development and installation at the radiation science and engineering center

Ünlü, K., Jan 1 2018, AISTech 2018 Proceedings - Iron and Steel Technology Conference and Exposition. Association for Iron and Steel Technology, AISTECH, p. 315-316 2 p. (AISTech - Iron and Steel Technology Conference Proceedings; vol. 2018-May).

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

Neutron beams
Moderators
Radiation
Neutron beams
Moderators
Radiation
2 Citations (Scopus)

Study of sub-pixel position resolution with time-correlated transient signals in 3D pixelated CdZnTe detectors with varying pixel sizes

Ocampo Giraldo, L., Bolotnikov, A. E., Camarda, G. S., De Geronimo, G., Fried, J., Gul, R., Hodges, D., Hossain, A., Ünlü, K., Vernon, E., Yang, G. & James, R. B., Mar 11 2018, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 884, p. 136-139 4 p.

Research output: Contribution to journalArticle

Pixels
pixels
Detectors
detectors
time signals
2017

Analysis of the new core-moderator assembly and beam ports at the Penn State breazeale reactor

Bascom, A. J., Walters, W. J. & Unlu, K., Jan 1 2017, In : Transactions of the American Nuclear Society. 117, p. 500-501 2 p.

Research output: Contribution to journalConference article

Moderators
4 Citations (Scopus)

Arrays of Position-Sensitive Virtual Frisch-Grid CdZnTe Detectors: Results from a 4× 4 Array Prototype

Ocampo Giraldo, L. A., Bolotnikov, A. E., Camarda, G. S., Cheng, S., De Geronimo, G., McGilloway, A., Fried, J., Hodges, D., Hossain, A., Unlu, K., Petryk, M., Vidal, V., Vernon, E., Yang, G. & James, R. B., Oct 2017, In : IEEE Transactions on Nuclear Science. 64, 10, p. 2698-2705 8 p., 8014510.

Research output: Contribution to journalArticle

grids
prototypes
Detectors
detectors
Cathodes
1 Citation (Scopus)

Nuclear radiation-tolerant wireless transmitter irradiation test results

Carvajal, J. V., Heibel, M. D., Arlia, N. G., Bascom, A. & Ünlü, K., Feb 2017, In : Nuclear Technology. 197, 2, p. 201-208 8 p.

Research output: Contribution to journalArticle

nuclear radiation
Microelectronics
transmitters
Transmitters
Irradiation
1 Citation (Scopus)
Radiation
2 Citations (Scopus)

Using a pulsed laser beam to investigate the feasibility of sub-pixel position resolution with time-correlated transient signals in 3D pixelated CdZnTe detectors

Giraldo, L. O., Bolotnikov, A. E., Camarda, G. S., Cheng, S., De Geronimo, G., McGilloway, A., Fried, J., Hodges, D., Hossain, A., Ünlü, K., Petryk, M., Vidal, V., Vernon, E., Yang, G. & James, R. B., Sep 21 2017, In : Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 867, p. 7-14 8 p.

Research output: Contribution to journalArticle

Pulsed lasers
Laser beams
pulsed lasers
Pixels
pixels
2016
4 Citations (Scopus)

Evaluating bis(2-ethylhexyl) methanediphosphonic acid (H2DEH[MDP]) based polymer ligand film (PLF) for plutonium and uranium extraction

Rim, J. H., Armenta, C. E., Gonzales, E. R., Ünlü, K. & Peterson, D. S., Mar 1 2016, In : Journal of Radioanalytical and Nuclear Chemistry. 307, 3, p. 2327-2332 6 p.

Research output: Contribution to journalArticle

Plutonium
Uranium
Polymers
Ligands
Acids
2015
4 Citations (Scopus)
spent fuels
Spent fuels
Assays
Gamma rays
nuclear fuels
1 Citation (Scopus)

Evaluating ligands for use in polymer ligand film (PLF) for plutonium and uranium extraction

Rim, J. H., Peterson, D. S., Armenta, C. E., Gonzales, E. R. & Ünlü, K., Jul 8 2015, In : Journal of Radioanalytical and Nuclear Chemistry. 305, 1, p. 193-198 6 p.

Research output: Contribution to journalArticle

Plutonium
Uranium
Polymers
Ligands
Acids
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

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
8 Citations (Scopus)

Developing and evaluating di(2-ethylhexyl) orthophosphoric acid (HDEHP) based polymer ligand film (PLF) for plutonium extraction

Rim, J. H., Gonzales, E. R., Armenta, C. E., Ünlü, K. & Peterson, D. S., May 2013, In : Journal of Radioanalytical and Nuclear Chemistry. 296, 2, p. 1099-1103 5 p.

Research output: Contribution to journalArticle

Orthophosphoric acid
Plutonium
Polymers
Ligands
Spectrum Analysis
3 Citations (Scopus)

Geant4 model validation of Compton suppressed system for process monitoring of spent fuel

Bender, S. E., Unlu, K., Orton, C. R. & Schwantes, J. M., Jan 1 2013, In : Journal of Radioanalytical and Nuclear Chemistry. 296, 2, p. 647-654 8 p.

Research output: Contribution to journalArticle

Spent fuels
Process monitoring
Multivariate Analysis
Nuclear fuel reprocessing
Fission products
1 Citation (Scopus)

Investigation of critical charge and sensitive volume of the Neutron Intercepting Silicon Chip (NISC)

Unlu, K., Celik, C., Narayanan, V. & Hossain, T. Z., Dec 1 2013, 2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and Their Applications, ANIMMA 2013. 6727921. (2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and Their Applications, ANIMMA 2013).

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

Neutrons
chips
neutrons
Silicon
silicon

New dendrochemical findings for Pinus nigra trees grown in the Mediterranean region

Şahin, D., Unlu, K., Kuniholm, P. I. & Pearson, C., Jan 1 2013, In : Transactions of the American Nuclear Society. 109, PART 1, p. 102-103 2 p.

Research output: Contribution to journalConference article

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
5 Citations (Scopus)

Determination of self shielding factors and gamma attenuation effects for tree ring samples

Şahin, D. & Ünlü, K., May 2012, In : Journal of Radioanalytical and Nuclear Chemistry. 291, 2, p. 549-553 5 p.

Research output: Contribution to journalArticle

Shielding
Neutron flux
Neutrons
Irradiation
Detectors
1 Citation (Scopus)

Modeling transient mechanisms for Penn State Breazeale Nuclear Reactor core neutronic analysis

Şahin, D., Unlu, K. & Ivanov, K., Dec 1 2012, In : Transactions of the American Nuclear Society. 106, p. 320-323 4 p.

Research output: Contribution to journalConference article

Core analysis
Reactor cores

Neutronic analysis of the new Penn State Breazeale Reactor core design using MCNP5 code

Uçar, D. & Unlu, K., 2012, In : Transactions of the American Nuclear Society. 106, p. 299-300 2 p.

Research output: Contribution to journalArticle

Reactor cores
1 Citation (Scopus)

Neutronic simulation of Penn State Breazeale Nuclear Reactor core using MURE

Şahin, D., Ünlü, K. & Ivanov, K., Dec 1 2012, In : Transactions of the American Nuclear Society. 106, p. 317-319 3 p.

Research output: Contribution to journalConference article

Reactor cores

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

Thermal-hydraulics analysis of the new Penn State Breazeale Reactor core design using ansys fluent code

Uçar, D. & Unlu, K., Dec 1 2012, In : Transactions of the American Nuclear Society. 106, p. 301-302 2 p.

Research output: Contribution to journalConference article

Reactor cores
Hydraulics
Hot Temperature
2011
1 Citation (Scopus)
Cosmic rays
cosmic rays
Neutrons
chips
neutrons

Designing a nuclear security education program for the global threat reduction initiative

Marianno, C. M., Charlton, W. S., MacNamee, R., Unlu, K. & Lanza, R. C., Dec 1 2011, In : Transactions of the American Nuclear Society. 105, p. 373-374 2 p.

Research output: Contribution to journalConference article

Education

Monte Carlo modeling of compton suppression for spent fuel material accountancy

Bender, S., Unlu, K. & Orton, C., Dec 1 2011, In : Transactions of the American Nuclear Society. 105, p. 345-346 2 p.

Research output: Contribution to journalConference article

Spent fuels
1 Citation (Scopus)

Nuclear security education program at the Pennsylvania State University

Ünlü, K., Dec 1 2011, In : Transactions of the American Nuclear Society. 105, p. 375-376 2 p.

Research output: Contribution to journalConference article

Education

Radiation science and engineering center upgrades at the pennsylvania state university

Heidrich, B. J. & Ünlü, K., Dec 1 2011, In : Transactions of the American Nuclear Society. 104, p. 223-224 2 p.

Research output: Contribution to journalConference article

Radiation
1 Citation (Scopus)
Neutrons
chips
neutrons
Silicon
silicon
2010

Further development of trigsims code system for Penn State breazeale reactor fuel management

Karriem, V., Puente Espel, F., Avramova, M., Heidrich, B. & Unlu, K., Dec 1 2010, In : Transactions of the American Nuclear Society. 102, p. 179-180 2 p.

Research output: Contribution to journalConference article

Radiation

Neutron depth profiling measurements and Geant4 simulation comparison for borophosphosilicate-glass (BPSG) sample

Uçar, D. & Ünlü, K., Dec 1 2010, In : Transactions of the American Nuclear Society. 102, p. 175-176 2 p.

Research output: Contribution to journalConference article

Depth profiling
Neutrons
Glass
1 Citation (Scopus)
Crystal filters
Nuclear reactors
Sapphire

Thermal-hydraulic modeling of Penn State Breazeale Reactor for safety and fuel management analysis

Karriem, V., Espel, F. P., Avramova, M., Heidrich, B. & Ünlü, K., Dec 1 2010, In : Transactions of the American Nuclear Society. 102, p. 185-186 2 p.

Research output: Contribution to journalConference article

Hydraulics
Hot Temperature
2009

A case study to test mozaik for different optimization problems

Bekar, K. B., Azmy, Y. Y., Unlu, K. & Brenizer, J., 2009, American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009. Vol. 5. p. 3137-3145 9 p.

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

Neutron beams
Shape optimization
Nuclear engineering
Optimization Problem
optimization
2 Citations (Scopus)

Activity, exposure rate and spectrum prediction with Java programming

Şahin, D. & Ünlü, K., Oct 1 2009, In : Journal of Radioanalytical and Nuclear Chemistry. 282, 1, p. 161-165 5 p.

Research output: Contribution to journalArticle

Neutron activation analysis
Software
Neutron Activation Analysis
Java programming language
Radiation
6 Citations (Scopus)

Dating volcanic eruptions with tree-ring chemistry

Ünlü, K., Pearson, C., Hauck, D. K. & Kuniholm, P. I., Jan 1 2009, In : IEEE Potentials. 28, 5, p. 36-44 9 p.

Research output: Contribution to journalArticle

chemistry

Initial design considerations of neutron intercepting silicon chip (NISC)

Çelik, C. & Unlu, K., 2009, In : Transactions of the American Nuclear Society. 101, p. 339-340 2 p.

Research output: Contribution to journalArticle

Neutrons
Silicon
National security
Detectors
Sensors
7 Citations (Scopus)

Modeling a gamma spectroscopy system and predicting spectra with Geant-4

Şahin, D. & Ünlü, K., Oct 1 2009, In : Journal of Radioanalytical and Nuclear Chemistry. 282, 1, p. 167-172 6 p.

Research output: Contribution to journalArticle

Neutron Activation Analysis
Neutron activation analysis
Spectrum Analysis
Spectroscopy
Radiation
33 Citations (Scopus)

Modeling soft errors at the device and logic levels for combinational circuits

Ramanarayanan, R., Degalahal, V. S., Krishnan, R., Kim, J., Narayanan, V., Xie, Y., Irwin, M. J. & Unlu, K., Jul 1 2009, In : IEEE Transactions on Dependable and Secure Computing. 6, 3, p. 202-216 15 p., 4358716.

Research output: Contribution to journalArticle

Combinatorial circuits
Networks (circuits)
Logic circuits
Error analysis
Scalability