Dr. Natalia P. Zaitseva Profile

Dr. Natalia P. Zaitseva

Lead Scientist at Lawrence Livermore National Lab

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Author

Publications (19)

Proceedings Article | 4 October 2023 Presentation

Pulse shape discrimination in 3D printable plastic scintillators using polyvinyl toluene-based resins

Yongwook Kim, Natalia Zaitseva, Michael Ford, Leslie Carman, Andrew Glenn, Michael Febbraro, Paul Hausladen

Proceedings Volume PC12696, PC126960D (2023) https://doi.org/10.1117/12.2676407

KEYWORDS: Scintillators, Plastics, 3D printing, Scintillation, Photopolymerization, Inhomogeneities, Dyes, Polystyrene, Polymerization, Oxygen

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Proceedings Article | 17 September 2019 Presentation

Developments in lithium-loaded plastic scintillators with pulse shape discrimination (Conference Presentation)

Andrew Mabe, Leslie Carman, Andy Glenn, Steven Dazeley, Steve Payne, Natalia Zaitseva

Proceedings Volume 11114, 1111408 (2019) https://doi.org/10.1117/12.2531532

KEYWORDS: Scintillators, Lithium, Scintillation, Quenching (fluorescence), New and emerging technologies

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Proceedings Article | 17 September 2019 Presentation

Development and testing of intrinsic anti-fogging plastic scintillators for radiation portal monitors (RPMs) (Conference Presentation)

Terence O'Brien, Charles Hurlbut, Kyle Shipp, Nicholas Myllenbeck, Steven Payne, Natalia Zaitseva, Michael Lance, Alan Janos

Proceedings Volume 11114, 111140E (2019) https://doi.org/10.1117/12.2530467

KEYWORDS: Scintillators, Fiber optic gyroscopes

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Proceedings Article | 18 September 2018 Presentation

Recent developments in PSD plastics: optimization, attenuation, and additives (Conference Presentation)

Andrew Mabe, M. Leslie Carman, Andrew Glenn, Steven Dazeley, Natalia Zaitseva, Steve Payne

Proceedings Volume 10762, 107620E (2018) https://doi.org/10.1117/12.2322072

KEYWORDS: Signal attenuation, Scintillators, Scintillation, Lithium, Matrices

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Proceedings Article | 2 November 2016 Presentation

Organic scintillators with pulse shape discrimination for detection of radiation (Conference Presentation)

Andrew Mabe, M. Leslie Carman, Andrew Glenn, Natalia Zaitseva, Stephen Payne

Proceedings Volume 9968, 99680I (2016) https://doi.org/10.1117/12.2238015

KEYWORDS: Scintillators, Gamma radiation, Glasses, Scintillation, Nuclear physics, Homeland security, Medical imaging, Polymers, Additive manufacturing, Liquids

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The detection of neutrons in the presence of gamma-ray fields has important applications in the fields of nuclear physics, homeland security, and medical imaging. Organic scintillators provide several attractive qualities as neutron detection materials including low cost, fast response times, ease of scaling, and the ability to implement pulse shape discrimination (PSD) to discriminate between neutrons and gamma-rays. This talk will focus on amorphous organic scintillators both in plastic form and small-molecule organic glass form. The first section of this talk will describe recent advances and improvements in the performance of PSD-capable plastic scintillators. The primary advances described in regard to modification of the polymer matrix, evaluation of new scintillating dyes, improved fabrication conditions, and implementation of additives which impart superior performance and mechanical properties to PSD-capable plastics as compared to commercially-available plastics and performance comparable to PSD-capable liquids. The second section of this talk will focus on a class of small-molecule organic scintillators based on modified indoles and oligophenylenes which form amorphous glasses as PSD-capable neutron scintillation materials. Though indoles and oligophenylenes have been known for many decades, their PSD properties have not been investigated and their scintillation properties only scantily investigated. Well-developed synthetic methodologies have permitted the synthesis of a library of structural analogs of these compounds as well as the investigation of their scintillation properties. The emission wavelengths of many indoles are in the sensitive region of common photomultiplier tubes, making them appropriate to be used as scintillators in either pure or doped form. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work has been supported by the U.S. Department of Energy Office of Nonproliferation Research and Development (NA-22) and by the Defense Threat Reduction Agency (DTRA).

Proceedings Article | 10 September 2014 Paper

Engineering architecture of the neutron Time-of-Flight (nToF) diagnostic suite at the National Ignition Facility

T. Clancy, J. Caggiano, J. McNaney, M. Eckart, M. Moran, V. Glebov, J. Knauer, R. Hatarik, S. Friedrich, R. Zacharias, A. Carpenter, M. Shoup, T. Buczek, M. Yeoman, Z. Zeid, N. Zaitseva, B. Talison, J. Worden, B. Rice, T. Duffy, A. Pruyne, K. Marshall

Proceedings Volume 9211, 92110A (2014) https://doi.org/10.1117/12.2062329

KEYWORDS: Sensors, Diagnostics, National Ignition Facility, Scintillators, Collimation, X-rays, Signal detection, Connectors, Oscilloscopes, Collimators

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Proceedings Article | 12 September 2009 Paper

Neutron detection with single crystal organic scintillators

Natalia Zaitseva, Jason Newby, Sebastien Hamel, Leslie Carman, Michelle Faust, Vincenzo Lordi, Nerine Cherepy, Wolfgang Stoeffl, Stephen Payne

Proceedings Volume 7449, 744911 (2009) https://doi.org/10.1117/12.829870

KEYWORDS: Crystals, Scintillators, Luminescence, Molecules, Crystallography, Organic materials, Scintillation, Liquids, Raw materials, Liquid crystals

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Proceedings Article | 15 January 2007 Paper

An expedited approach to evaluate the importance of different crystal growth parameters on laser damage performance in KDP and DKDP

R. Negres, N. Zaitseva, P. DeMange, S. Demos

Proceedings Volume 6403, 64031S (2007) https://doi.org/10.1117/12.695473

KEYWORDS: Crystals, Laser induced damage, Laser crystals, Resistance, Absorption, Light scattering, Prisms, Ultraviolet radiation, Raw materials, Nanoparticles

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Proceedings Article | 23 July 1999 Paper

Overview of recent KDP damage experiments and implications for NIF tripler performance

Michael Runkel, Richard Jennings, Jim DeYoreo, Walter Sell, David Milam, Natalia Zaitseva, L. Carmen, Wade Williams

Proceedings Volume 3492, (1999) https://doi.org/10.1117/12.354149

KEYWORDS: National Ignition Facility, Crystals, Annealing, Failure analysis, Laser damage threshold, Thermal effects, Laser crystals, Data modeling, Raster graphics, Laser optics

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Proceedings Article | 20 April 1998 Paper

Effect of impurities and stress on the damage distributions of rapidly grown KDP crystals

Michael Runkel, Ming Yan, Jim DeYoreo, Natalia Zaitseva

Proceedings Volume 3244, (1998) https://doi.org/10.1117/12.307046

KEYWORDS: Crystals, Laser damage threshold, National Ignition Facility, Laser induced damage, Laser crystals, Laser applications, Laser ablation, Laser development, Diagnostic tests, Diagnostics

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Proceedings Article | 8 December 1997 Paper

Rapid growth of large-scale (40-55 cm) KDP crystals

Natalia Zaitseva, James De Yoreo, Martin DeHaven, Russell Vital, L. Carman, H. Spears

Proceedings Volume 3047, (1997) https://doi.org/10.1117/12.294327

KEYWORDS: Crystals, National Ignition Facility, Laser crystals, Laser damage threshold, Adaptive optics, Glasses, Photography, Optical filters, Distortion, Optical testing

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Proceedings Article | 13 May 1997 Paper

Investigations of laser damage in KDP using light-scattering techniques

Bruce Woods, Michael Runkel, Ming Yan, Michael Staggs, Natalia Zaitseva, Mark Kozlowski, James De Yoreo

Proceedings Volume 2966, (1997) https://doi.org/10.1117/12.274275

KEYWORDS: Crystals, Laser damage threshold, Light scattering, Diagnostics, Laser crystals, Thermal effects, Birefringence, Scattering, National Ignition Facility, Laser scattering

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Interest in producing high damage threshold KH₂PO₄ (KDP) and (D_xH_1-x)₂PO₄ (DKDP) for frequency conversion and optical switching applications is driven by the requirements of the National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory. At present only the best crystals meet the NIF system requirements at the third harmonic and only after a laser conditioning process. Neither the mechanism for damage in bulk KDP nor the mechanism for conditioning ins understood. As part of ta development effort to increase the damage thresholds of KDP and DKDP, we have been developing techniques to pinpoint the locations where damage will initiate in the bulk material. After we find these locations we will use other measurement techniques to determine how these locations differ from the other surrounding materials and why they cause damage. This will allow crystal growers to focus their efforts to improve damage thresholds. Historically, damage thresholds have increased it is believed as a consequence of increased purity of the growth solution and through the use of constant filtration during the growth process. As a result we believe that damage is caused by defects in the crystals and have conducted a series of experiments using light scatter to locate these defects and to determine when and where damage occurs. In this paper we present results which show a low correlation between light scatter from bulk defects in KDP and the initiation sites for damage. We have also studied the effects of thermal conditioning on light scatter, strain induced birefringence and damage threshold. We have seen evidence that regions of high strain also exhibit lower damage threshold than the surrounding lower strain material. When thermally conditioned, these crystals show a decrease in some of the strong linear scattering features and a decrease in the strain birefringence while the damage threshold in these regions increased to that of the surrounding bulk material.

Proceedings Article | 13 May 1997 Paper

Investigation of impurities and laser-induced damage in the growth sectors of rapidly grown KDP crystals

Ming Yan, Richard Torres, Michael Runkel, Bruce Woods, Ian Hutcheon, Natalia Zaitseva, James De Yoreo

Proceedings Volume 2966, (1997) https://doi.org/10.1117/12.274277

KEYWORDS: Crystals, Absorption, Laser induced damage, Laser damage threshold, Laser crystals, Ultraviolet radiation, Annealing, Light scattering, Nonlinear crystals, Laser scattering

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Proceedings Article | 27 May 1996 Paper

Impurity contamination in fast-grown KDP

Ming Yan, James De Yoreo, Natalia Zaitseva, Richard Torres

Proceedings Volume 2714, (1996) https://doi.org/10.1117/12.240410

KEYWORDS: Contamination, Crystals, Nonlinear crystals, Crystallography, Absorption spectroscopy, Potassium, Nonlinear optical materials, Frequency conversion, Laser applications, Laser induced damage

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Proceedings Article | 28 July 1994 Paper

Thermal and laser conditioning of production and rapid growth KDP and KD*P crystals

L. Jeffrey Atherton, Frank Rainer, James De Yoreo, Ian Thomas, N. Zaitseva, Frank De Marco

Proceedings Volume 2114, (1994) https://doi.org/10.1117/12.180912

KEYWORDS: Crystals, Laser damage threshold, Laser crystals, National Ignition Facility, Annealing, Raster graphics, Solid state lasers, Potassium, Analog electronics, Absorption

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Proceedings Article | 23 July 1993 Paper

Optical quality investigation of urea crystals

N. Zaitseva

Proceedings Volume 1983, 19839D (1993) https://doi.org/10.1117/12.2308756

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Proceedings Article | 11 December 1992 Paper

Nonlinear frequency converters as sources and detectors of polarized light with linear polarization degree of 10-9

Dmitri Paraschuk, N. Zaitseva, Nikolay Zheludev

Proceedings Volume 1841, (1992) https://doi.org/10.1117/12.131832

KEYWORDS: Polarization, Crystals, Polarizers, Polarimetry, Nonlinear crystals, Prisms, Laser phosphor displays, Light scattering, Frequency conversion, Phase matching

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Proceedings Article | 1 April 1991 Paper

Optical properties of KDP crystals grown at high growth rates

N. Zaitseva, Ferous Ganikhanov, O. Katchalov, V. Efimkov, S. Pastukhov, V. Sobolev

Proceedings Volume 1402, (1991) https://doi.org/10.1117/12.47504

KEYWORDS: Crystals, Nonlinear crystals, Laser crystals, Absorption, Process modeling, Crystal optics, Crystallography, Light scattering, Ultraviolet radiation, Nonlinear optics

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Proceedings Article | 1 April 1991 Paper

Application of high-rate crystal growth technique to single crystals of nucleic acid bases

J. Zachova, Josef Stepanek, N. Zaitseva

Proceedings Volume 1402, (1991) https://doi.org/10.1117/12.47498

KEYWORDS: Crystals, Nonlinear crystals, Process modeling, Raman spectroscopy, Nonlinear optics, Nonlinear control, Diagnostics, Crystal optics, Reflection, Laser crystals

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Showing 5 of 19 publications

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