Robin Gardner

Zhang, Y., Tang, B., Jia, W. B., Zhang, X., Wang, R., Li, F., & Gardner, R. (2019). Application of the Monte Carlo Library Least-Squares (MCLLS) approach for chromium quantitative analysis in aqueous solution. APPLIED RADIATION AND ISOTOPES, 150, 39–42. https://doi.org/10.1016/j.apradiso.2019.02.018

Chang, H. P., Meric, I., Sudac, D., Nad, K., Obhodas, J., Hou, G., … Gardner, R. P. (2019, February). Implementation of the Monte Carlo Library Least-Squares (MCLLS) approach for quantification of the chlorine impurity in an on-line crude oil monitoring system. RADIATION PHYSICS AND CHEMISTRY, Vol. 155, pp. 197–201. https://doi.org/10.1016/j.radphyschem.2018.05.012

Feinberg, A., & Gardner, R. P. (2019, February). Uncertainty quantification for Gamma-ray spectroscopy using the Library-Least Squares technique. RADIATION PHYSICS AND CHEMISTRY, Vol. 155, pp. 191–196. https://doi.org/10.1016/j.radphyschem.2018.08.015

Zhang, Y., Jia, W. B., Gardner, R., Shan, Q., Zhang, X. L., Hou, G., & Chang, H. P. (2018). A distance correction method for improving the accuracy of particle coal online X-ray fluorescence analysis - Part 1: Theoretical dependence of XRF intensity on the distance. RADIATION PHYSICS AND CHEMISTRY, 147, 118–121. https://doi.org/10.1016/j.radphyschem.2017.07.005

Zhang, Q., Zhang, F., Gardner, R. P., Yan, H., Wu, G., Tian, L., … Ti, Y. (2018). A method for determining density based on gamma ray and fast neutron detection using a Cs2LiYCl6 detector in neutron-gamma density logging. APPLIED RADIATION AND ISOTOPES, 142, 77–84. https://doi.org/10.1016/j.apradiso.2018.09.011

Zhang, F., Zhang, Q., Gardner, R. P., Liu, J., Zhang, X., Qiu, F., … Wang, Y. (2018). Quantitative monitoring of CO2 sequestration using thermal neutron detection technique in heavy oil reservoirs. INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 79, 154–164. https://doi.org/10.1016/j.ijggc.2018.10.003

Zhang, Y., Jia, W. B., Gardner, R., Shan, Q., & Hei, D. (2018). Study on the PGNAA. measurement of heavy metals in aqueous solution by the Monte Carlo Library Least-Squares (MCLLS) approach. APPLIED RADIATION AND ISOTOPES, 132, 13–17. https://doi.org/10.1016/j.apradiso.2017.10.037

Zhang, Y., Jia, W. B., Gardner, R., Shan, Q., Zhang, X. L., Hou, G., & Chang, H. P. (2017). A distance correction method for improving the accuracy of particle coal online X-ray fluorescence analysis - Part 2: Method and experimental investigation. RADIATION PHYSICS AND CHEMISTRY, 141, 235–238. https://doi.org/10.1016/j.radphyschem.2017.07.004

Chang, H. P., Meric, I., Sudac, D., Nad, K., Obhodas, J., & Gardner, R. P. (2017). Development of a method for on-line determination of chlorine impurity in crude oil by using fast neutrons. FUEL, 209, 643–649. https://doi.org/10.1016/j.fuel.2017.06.123

Nelson, N., Azmy, Y., Gardner, R. P., Mattingly, J., Smith, R., Worrall, L. G., & Dewji, S. (2017). Validation and uncertainty quantification of detector response functions for a 1″×2″ NaI collimated detector intended for inverse radioisotope source mapping applications. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 410, 1–15. https://doi.org/10.1016/J.NIMB.2017.07.015

Liu, J., Zhang, F., Gardner, R. P., Hou, G., Zhang, Q., Zhang, Y., … Hu, C. (2016). A method to improve the sensitivity of neutron porosity measurement based on D-T source. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING, 33, 879–884. https://doi.org/10.1016/j.jngse.2016.06.028

Liu, J., Zhang, F., Gardner, R. P., Hou, G., Zhang, Q., & Li, H. (2015). A method to evaluate hydraulic fracture using proppant detection. APPLIED RADIATION AND ISOTOPES, 105, 139–143. https://doi.org/10.1016/j.apradiso.2015.08.003

Hou, G., & Gardner, R. P. (2015, November). A new G-M counter hybrid dead-time correction model. RADIATION PHYSICS AND CHEMISTRY, Vol. 116, pp. 125–129. https://doi.org/10.1016/j.radphyschem.2015.05.014

Miller, I., Holmes, T. W., & Gardner, R. P. (2015, November). An analytical approach for treating background in spectral analysis measurements. RADIATION PHYSICS AND CHEMISTRY, Vol. 116, pp. 87–91. https://doi.org/10.1016/j.radphyschem.2015.01.018

Gardner, R. P., & Lee, K. O. (2015, November). Personal reflections on the highlights and changes in radiation and radioisotope measurement applications. RADIATION PHYSICS AND CHEMISTRY, Vol. 116, pp. 28–31. https://doi.org/10.1016/j.radphyschem.2014.11.019

Holmes, T. W., & Gardner, R. P. (2015). Spectral analysis of shielded gamma ray sources using precalculated library data. Radiation Physics and Chemistry, 116, 355–358. https://doi.org/10.1016/J.RADPHYSCHEM.2015.04.017

Wang, Z., Lee, K. O., & Gardner, R. P. (2014). A DUAL SYSTEM FOR MONITORING THE POSITIONS OF MULTIPLE RADIOACTIVE TRACER PEBBLES IN SCALED PEBBLE BED REACTORS. NUCLEAR TECHNOLOGY, 185(3), 259–269. https://doi.org/10.13182/nt13-13

Meric, I., Johansen, G. A., Mattingly, J., & Gardner, R. P. (2014). On the ill-conditioning of the multiphase flow measurement by prompt gamma-ray neutron activation analysis. RADIATION PHYSICS AND CHEMISTRY, 95, 401–404. https://doi.org/10.1016/j.radphyschem.2012.12.047

Lee, K. O., & Gardner, R. P. (2013). Prediction of Pebble Motion in Pebble-Bed Reactors Using Monte Carlo Molecular Dynamics Simulation. NUCLEAR SCIENCE AND ENGINEERING, 174(3), 264–285. https://doi.org/10.13182/nse12-23

Wang, J., Wang, Z., Peeples, J., Yu, H., & Gardner, R. P. (2012, July). Development of a simple detector response function generation program: The CEARDRFs code. APPLIED RADIATION AND ISOTOPES, Vol. 70, pp. 1166–1174. https://doi.org/10.1016/j.apradiso.2011.11.003

Meric, I., Johansen, G. A., Holstad, M. B., Calderon, A. F., & Gardner, R. P. (2012). Enhancement of the intrinsic gamma-ray stopping efficiency of Geiger-Muller counters. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 696, 46–54. https://doi.org/10.1016/j.nima.2012.08.086

Li, F., & Gardner, R. P. (2012, July). Implementation of the elemental library stratified sampling technique on the GUI-based Monte Carlo library least squares (MCLLS) approach for EDXRF analysis. APPLIED RADIATION AND ISOTOPES, Vol. 70, pp. 1243–1249. https://doi.org/10.1016/j.apradiso.2011.09.012

Li, A., Smith, N., Hehlen, M. P., McKigney, E. A., & Gardner, R. (2012, July). Light yield measurement method for milled nanosize inorganic crystals. APPLIED RADIATION AND ISOTOPES, Vol. 70, pp. 1219–1222. https://doi.org/10.1016/j.apradiso.2011.09.021

Lee, K. O., Holmes, T. W., Calderon, A. F., & Gardner, R. P. (2012). Molecular Dynamics simulation for PBR pebble tracking simulation via a random walk approach using Monte Carlo simulation. APPLIED RADIATION AND ISOTOPES, 70(5), 827–830. https://doi.org/10.1016/j.apradiso.2011.11.043

Peeples, J. L., & Gardner, R. P. (2012, July). Monte Carlo simulation of the nonlinear full peak energy responses for gamma-ray scintillation detectors. APPLIED RADIATION AND ISOTOPES, Vol. 70, pp. 1058–1062. https://doi.org/10.1016/j.apradiso.2011.12.006

Meric, I., Johansen, G. A., Holstad, M. B., Mattingly, J., & Gardner, R. P. (2012). On the treatment of ill-conditioned cases in the Monte Carlo library least-squares approach for inverse radiation analyzers. MEASUREMENT SCIENCE AND TECHNOLOGY, 23(5). https://doi.org/10.1088/0957-0233/23/5/055603

Holmes, T. W., Calderon, A., Peeples, C. R., & Gardner, R. P. (2011). A proposed benchmark problem for cargo nuclear threat monitoring. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 652(1), 52–57. https://doi.org/10.1016/j.nima.2010.10.070

Meric, I., Johansen, G. A., Holstad, M. B., Lee, K. O., Calderon, A. F., Wang, J., & Gardner, R. P. (2011). A single scatter electron Monte Carlo approach for simulating gamma-ray stopping efficiencies of Geiger-Müller counters. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 654(1), 279–287. https://doi.org/10.1016/J.NIMA.2011.06.065

Yu, H., Sun, J., Wang, J., & Gardner, R. P. (2011). Accuracy and borehole influences in pulsed neutron gamma density logging while drilling. APPLIED RADIATION AND ISOTOPES, 69(9), 1313–1317. https://doi.org/10.1016/j.apradiso.2011.04.023

Wang, J., Calderon, A., Peeples, C. R., Ai, X., & Gardner, R. P. (2011). Monte Carlo investigation and optimization of coincidence prompt gamma-ray neutron activation analysis. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 652(1), 572–577. https://doi.org/10.1016/j.nima.2010.08.011

Meric, I., Johansen, G. A., Holstad, M. B., & Gardner, R. P. (2011). Monte Carlo modelling of gamma-ray stopping efficiencies of Geiger-Muller counters. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 636(1), 61–66. https://doi.org/10.1016/j.nima.2011.01.083

Meric, I., Johansen, G. A., Holstad, M. B., Wang, J. X., & Gardner, R. P. (2011). Produced water characterization by prompt gamma-ray neutron activation analysis. Measurement Science & Technology, 22(12). https://doi.org/10.1088/0957-0233/22/12/125701

Gardner, R. P., Ai, X., Peeples, C. R., Wang, J., Lee, K., Peeples, J. L., & Calderon, A. (2011). Use of an iterative convolution approach for qualitative and quantitative peak analysis in low resolution gamma-ray spectra. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 652(1), 544–549. https://doi.org/10.1016/j.nima.2010.12.224

Gardner, R. P., & Li, F. (2011). Use of the CEARXRF GUI-Based Monte Carlo-Library Least-Squares (MCLLS) Code for the Micro-Focused EDXRF analyzer. X-RAY SPECTROMETRY, 40(6), 405–410. https://doi.org/10.1002/xrs.1365

Peeples, C. R., Mickael, M., & Gardner, R. P. (2010). On replacing Am-Be neutron sources in compensated porosity logging tools. APPLIED RADIATION AND ISOTOPES, Vol. 68, pp. 926–931. https://doi.org/10.1016/j.apradiso.2009.11.042

Gardner, R. P., & Sood, A. (2010). On the future of Monte Carlo simulation for nuclear logs. APPLIED RADIATION AND ISOTOPES, Vol. 68, pp. 932–935. https://doi.org/10.1016/j.apradiso.2009.10.021

Li, F., & Gardner, R. P. (2010). Semi-empirical modeling of gamma-ray density logs with the possibility of obtaining more information. APPLIED RADIATION AND ISOTOPES, Vol. 68, pp. 936–940. https://doi.org/10.1016/j.apradiso.2009.10.047

Gardner, R. P., & Xu, L. (2009, October). Status of the Monte Carlo library least-squares (MCLLS) approach for non-linear radiation analyzer problems. RADIATION PHYSICS AND CHEMISTRY, Vol. 78, pp. 843–851. https://doi.org/10.1016/j.radphyschem.2009.04.023

Wang, J., Li, F., & Gardner, R. P. (2008, September). On the use of prompt gamma-ray neutron activation analysis for determining phase amounts in multiphase flow. MEASUREMENT SCIENCE AND TECHNOLOGY, Vol. 19. https://doi.org/10.1088/0957-0233/19/9/094005

Kulisek, J. A., Hartwell, J. K., McIlwain, M. E., & Gardner, R. P. (2007, September 21). Design and preliminary Monte Carlo calculations of an active Compton-suppressed LaBr3(Ce) detector system for TRU assay in remote-handled wastes. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Vol. 580, pp. 226–229. https://doi.org/10.1016/j.nima.2007.05.060

Gardner, R. P. (2007). Gamma ray detectors having improved signal-to-noise ratio and related systems and methods for analyzing bulk materials. Washington, DC: U.S. Patent and Trademark Office.

Garnder, R. P. (2007). Gamma ray detectors having improved signal-to-noise ratio and related systems and methods for analyzing materials in an oil well. Washington, DC: U.S. Patent and Trademark Office.

Lee, S. H., Jae, M., & Gardner, R. P. (2007, October). Non-poisson counting statistics of a hybrid G-M counter dead time model. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 263, pp. 46–49. https://doi.org/10.1016/j.nimb.2007.04.041

Han, X., & Gardner, R. P. (2007, October). The Monte Carlo code CEARCPG for coincidence prompt gamma-ray neutron activation analysis. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 263, pp. 320–325. https://doi.org/10.1016/j.nimb.2007.04.238

Metwally, W. A., Gardner, R. P., & Sood, A. (2007, October). Using gamma-gamma coincidence measurements to validate Monte Carlo generated detector response functions. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 263, pp. 50–53. https://doi.org/10.1016/j.nimb.2007.04.137

Han, X. G., Gardner, R. P., & Metwally, W. A. (2006). CEARCPG: A Monte Carlo simulation code for normal and coincidence prompt-gamma-ray neutron activation analysis. Nuclear Science and Engineering, 155(1), 143–153. https://doi.org/10.13182/nse07-a2652

Gardner, R. P., Metwally, W. A., & Han, X. G. (2005). A new NaI detector arrangement for efficient detection of high energy gamma-rays. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 264(1), 133–137. https://doi.org/10.1007/s10967-005-0685-x

Guo, W. J., Gardner, R. P., & Mayo, C. W. (2005). A study of the real-time deconvolution of digitized waveforms with pulse pile up for digital radiation spectroscopy. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 544(3), 668–678. https://doi.org/10.1016/j.nima.2004.12.036

Zhang, W. C., & Gardner, R. P. (2005). CEARPGA II: A Monte Carlo simulation code for prompt-gamma-ray neutron activation analysis. NUCLEAR SCIENCE AND ENGINEERING, 151(3), 361–373. https://doi.org/10.13182/NSE05-A2556

Metwally, W. A., Mayo, C. W., Han, X., & Gardner, R. P. (2005). Coincidence counting for PGNAA applications: Is it the optimum method? JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 265(2), 309–314. https://doi.org/10.1007/s10967-005-0826-2

Gardner, R. P., & Guo, W. (2005, June). Development of a Monte Carlo - Library Least-Squares code package for the EDXRF inverse problem. POWDER DIFFRACTION, Vol. 20, pp. 146–152. https://doi.org/10.1154/1.1913722

Gardner, R. P., Zhang, W., & Metwally, W. A. (2005). Status of software for PGNAA bulk analysis by the Monte Carlo - Library Least-Squares (MCLLS) approach. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 264(1), 221–228. https://doi.org/10.1007/s10967-005-0697-6

Gardner, R. P., & Sood, A. (2004, January). A Monte Carlo simulation approach for generating NaI detector response functions (DRFs) that accounts for non-linearity and variable flat continua. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 87–99. https://doi.org/10.1016/S0168-583X(03)01539-8

Sood, A., & Gardner, R. P. (2004, January). A new Monte Carlo assisted approach to detector response functions. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 100–104. https://doi.org/10.1016/S0168-583X(03)01540-4

Gardner, R. P., Metwally, W. A., & Shehata, A. (2004, January). A semi-empirical model for a Sr-90 beta-particle transmission thickness gauge for aluminum alloys. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 357–363. https://doi.org/10.1016/S0168-583X(03)01582-9

Dunn, W., Fernández, J. E., Gardner, R. P., & Tartari, A. (2004). Editorial. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 213, vii-viii. https://doi.org/10.1016/S0168-583X(03)01525-8

Metwally, W. A., Gardner, R. P., & Mayo, C. W. (2004, January). Elemental PGNAA analysis using gamma-gamma coincidence counting with the library least-squares approach. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 394–399. https://doi.org/10.1016/S0168-583X(03)01660-4

Sun, J., & Gardner, R. P. (2004, January). Optimization of the steady neutron source technique for absorption cross section measurement by using an Sb-124-Be neutron source. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 22–28. https://doi.org/10.1016/S0168-583X(03)01527-1

Guo, W. J., Gardner, R. P., & Metwally, W. A. (2004, January). Preliminary studies on K and L coincidence spectroscopy for optimizing the in vivo XRF measurement of lead in bone. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 574–578. https://doi.org/10.1016/S0168-583X(03)01674-4

Metwally, W. A., & Gardner, R. P. (2004). Stabilization of prompt gamma-ray neutron activation analysis (PGNAA) spectra from NaI detectors. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 525(3), 518–521. https://doi.org/10.1016/j.nima.2004.02.011

Guo, W. J., Lee, S. H., & Gardner, R. P. (2004). The Monte Carlo approach MCPUT for correcting pile-up distorted pulse-height spectra. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 531(3), 520–529. https://doi.org/10.1016/j.nima.2004.05.089

Zhang, W. C., & Gardner, R. P. (2004, January). The analog linear interpolation approach for Monte Carlo simulation of PGNAA: The CEARPGA code. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, Vol. 213, pp. 116–123. https://doi.org/10.1016/S0168-583X(03)01544-1

Metwally, W. A., Gardner, R. P., & Mayo, C. W. (2004). Two-dimensional diagonal summing of coincidence spectra for bulk PGNAA applications. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 525(3), 511–517. https://doi.org/10.1016/j.nima.2004.02.012

Guo, W. J., Gardner, R. P., & Todd, A. C. (2004). Using the Monte Carlo - Library Least-Squares (MCLLS) approach for the in vivo XRF measurement of lead in bone. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 516(2-3), 586–593. https://doi.org/10.1016/j.nima.2003.09.030

Lee, S. H., Gardner, R. P., & Todd, A. C. (2001). Preliminary studies on combining the K and L XRF methods for in vivo bone lead measurement. Applied Radiation and Isotopes, 54(6), 893–904. https://doi.org/10.1016/s0969-8043(00)00350-x

Gardner, R. P., Mayo, C. W., El-Sayyed, E. S., Metwally, W. A., Zheng, Y., & Poezart, M. (2000). A feasibility study of a coincidence counting approach for PGNAA applications. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 515–526. https://doi.org/10.1016/S0969-8043(00)00206-2

Lee, S. H., & Gardner, R. P. (2000). A new G-M counter dead time model. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 731–737. https://doi.org/10.1016/S0969-8043(00)00261-X

Gardner, R. P., & Liu, L. Y. (2000). Monte Carlo simulation for IRRMA. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 837–855. https://doi.org/10.1016/S0969-8043(00)00233-5

Gardner, R. P., Sayyed, E., Zheng, Y. S., Hayden, S., & Mayo, C. W. (2000). NaI detector neutron activation spectra for PGNAA applications. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 483–497. https://doi.org/10.1016/S0969-8043(00)00198-6

Earnhart, J., Prettyman, T., Lestone, J., & Gardner, R. (2000). Simulation of Compton camera imaging with a specific purpose Monte Carlo code. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 673–680. https://doi.org/10.1016/S0969-8043(00)00203-7

Sood, A., Gardner, R. P., & Gray, T. K. (2000). Steady neutron source measurement method for Sigma(a) and Sigma(s) in geological samples. APPLIED RADIATION AND ISOTOPES, Vol. 53, pp. 603–616. https://doi.org/10.1016/S0969-8043(00)00235-9

Gardner, R. P., & Liu, L. Y. (1999). Monte Carlo simulation of neutron porosity oil well logging tools: Combining the geometry-independent fine-mesh importance map and one-dimensional diffusion model approaches. NUCLEAR SCIENCE AND ENGINEERING, 133(1), 80–91. https://doi.org/10.13182/NSE99-A2074

Gardner, R. P., & Mayo, C. W. (1999). NaI detector nonlinearity for PGNAA applications. APPLIED RADIATION AND ISOTOPES, 51(2), 189–195. https://doi.org/10.1016/S0969-8043(98)00183-3

Gardner, R. P., Guo, P., Sood, A., Mayo, C. W., Gehrke, R. J., & Dobbs, C. L. (1998, July). Monte Carlo aided treatments of the nonlinear inverse PGNAA measurement problem for various continuous on-line applications. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, Vol. 233, pp. 105–107. https://doi.org/10.1007/BF02389655

Gardner, R. P., & Dobbs, C. L. (1998). Nuclear radiation gages and analyzers. In G. Birnbaum & B. A. Auld (Eds.), Sensing for materials characterization, processing, and manufacturing (pp. 153–182). Columbus, OH: American Society for Nondestructive Testing, Inc.

Liu, L. Y., & Gardner, R. P. (1997). A geometry-independent fine-mesh-based Monte Carlo importance generator. NUCLEAR SCIENCE AND ENGINEERING, 125(2), 188–195. https://doi.org/10.13182/NSE97-A24265

Titus, K. J., Clapp, T. G., Zhu, Z., & Gardner, R. P. (1997). A preliminary investigation of a beta-particle transmission gauge for seam quality determination. TEXTILE RESEARCH JOURNAL, 67(1), 23–34. https://doi.org/10.1177/004051759706700107

Gardner, R. P., Guo, P., Ao, Q., & Dobbs, C. L. (1997). Black box radiation gauges and analyzers: Dream or reality? APPLIED RADIATION AND ISOTOPES, 48(10-12), 1273–1288. https://doi.org/10.1016/S0969-8043(97)00120-6

Ao, Q., Lee, S. H., & Gardner, R. P. (1997). Development of the specific purpose Monte Carlo code CEARXRF for the design and use of in vivo X-ray fluorescence analysis systems for lead in bone. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1403–1412. https://doi.org/10.1016/S0969-8043(97)00136-X

Gardner, R. P., Guo, P., Wang, Y. Y., Sood, A., Lee, S. H., & Dobbs, C. L. (1997). Feasibility of neutron activation methods for measurement of sodium and aluminum in green liquor. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1355–1372. https://doi.org/10.1016/S0969-8043(97)00131-0

Gardner, R. P., & Liu, L. Y. (1997). On extending the accurate and useful counting rate range of GM counter detector systems. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1605–1615. https://doi.org/10.1016/S0969-8043(97)00161-9

Ao, Q., Lee, S. H., & Gardner, R. P. (1997). Optimization of in vivo X-ray fluorescence analysis methods for bone lead by simulation with the Monte Carlo code CEARXRF. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1413–1423. https://doi.org/10.1016/S0969-8043(97)00137-1

Gardner, R. P., Sood, A., Wang, Y. Y., Liu, L., Guo, P., & Gehrke, R. J. (1997). Single peak versus library least-squares analysis methods for the PGNAA analysis of vitrified waste. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1331–1335. https://doi.org/10.1016/S0969-8043(97)00127-9

Guo, P., Ao, Q., & Gardner, R. P. (1997). Spectral gamma-ray log interpretation algorithms using the Monte Carlo multiply scattered components approach. APPLIED RADIATION AND ISOTOPES, 48(10-12), 1373–1383. https://doi.org/10.1016/S0969-8043(97)00132-2