Education
09/2001 08/2005 North Carolina State University, Raleigh, USA
Ph.D Nuclear Engineering
Ph.D thesis: Development of Monte Carlo Code for Coincidence Prompt
Gamma-Ray Neutron Activation Analysis.
09/1991 - 07/1995 SiChuan University, Chengdu, Sichuan, P.R.China
BS Nuclear Physics

Experience and
Training
03/2006 Present
Research Scientist at Baker Hughes Inc.
08/2005 03/2006
Post doctoral research associate in Nuclear Engineering Department at North
Carolina State University.
06/2004 09/2004
Summer Intern at ExxonMobil Upstream Research Company
09/2001 08/2005
Research Assistant in Nuclear Engineering Department at North Carolina
State University
07/1995 07/2001
Research associate at China Institute of Atomic Energy
BakerHughes training class :
Interpretation of Cased Hole Logs ( may 2006)
Introduction to Petrophysics and Formation Evaluation Measurements
(September 2007)
LEAD II (Learn, Excel, Achieve and Develop) (April 2009)
RESOLVER training for Application Programming (July 2009)
TechLog training (August 2009)

Awards Received 2006 Mark Mills Award (American Nuclear Society)
2001 third prize of Chinas PLA Science and Technology Award.
Top ten young science researchers in Nuclear Physics Department at
China Institute of Atomic Energy 1999-2000
Full membership of Sigma Xi
Membership of ANS (American Nuclear Society)
Membership of SPWLA(Society of Professional Well Log Analysts)
Membership of SPE (Society of Petroleum Engineers)

Interests and
Activities
Motivated, hard working, many leadership roles, and team player.
Traveling, Pop Music, Photography and Swimming
Computer Skill Petrophysical analysis package Resolver, TechLog, MCNP, perl, Fortran,
MatLab, MathCAD, C++, MSOffice, SPSS, MCNP, Monte Carlo code
development, UNIX

Publications
Selected Publications
1 Environmental Corrections and System Calibration for a New Pulsed-
Neutron Mineralogy Instrument. Xiaogang Han, Richard Pemper,
Teresa Tutt and Fusheng Li. SPWLA 50th Annual Logging
Symposium, June 21-24, 2009.
2 The Direct Measurement of Carbon in Wells Containing Oil and
Natural Gas using a Pulsed Neutron Mineralogy Tool. Richard
Pemper, Xiaogang Han, Freddy Mendez, etc. 2009 SPE Annual
Technical Conference and Exhibition. October 2009.
3 Elemental Calibration of FLeX tool. Xiaogang Han. Baker Hughes
Incorporated 2008 internal report.
4 Updating of Environmental corrections: Spectralog II, Total Gamma
ray, ZDL. Xiaogang Han, Yi Liu, Fayzi Inanc. Baker Hughes
Incorporated 2008 internal report.
5 Updating of Environmental corrections: Spectralog II. Xiaogang Han.
Baker Hughes Incorporated 2008 internal report.
6 RPM Science and Modeling Report, Xiaogang Han, Baker Hughes
Incorporated 2007 internal report.
7 FLeX Interpretation Research Report, Xiaogang Han. Baker Hughes
Incorporated 2007 internal report.
8 A New Pulsed Neutron Sonde for Derivation of Formation Lithology
and Mineralogy, R. Pemper, SPE, A. Sommer, P. Guo, SPE, D.
Jacobi, J. Longo, S. Bliven, E. Rodriguez, F. Mendez, and X. Han,
SPE 2006 Annual Technical Conference and Exhibition. 24-27 Sep.
2006
9 The Monte Carlo code CEACPG for coincidence prompt gamma-ray
neutron activation analysis Xiaogang Han, Robin P. Gardner
In Press. Nuclear Instruments and Methods in Physics Research B.
2007
10 CEARCPG: A Monte Carlo Simulation Code for Normal and
Coincidence Prompt Gamma ray Neutron Activation Analysis
(PGNAA),
Xiaogang Han, Robin P. Gardner and W. A. Metwally
Nuclear Science and Engineering, American Nuclear Society.
Volume 155 Number 1 January 2007 Pages 143-153
11 Field and Benchmark Studies of LWD Nuclear Tool Response in High
Angle and Horizontal Wells.
Hezhu Yin, Xiaogang Han, Libai Xu, etc
SPWLA 47th Annual Logging symposium, June 4-7, 2006
12 On Using Monte Carlo Generated Libraries for Applying the Library
Least-Squares Analysis Approach to the C/O Tool.
Robin P. Gardner, Xiaogang Han and Pingjun Guo
SPWLA 47th Annual Logging symposium, June 4-7, 2006
13 A Conceptual C/O Tool Design with Coincidence Counting.
Xiaogang Han, Robin P. Gardner etc.
SPWLA 47th Annual Logging symposium, June 4-7, 2006
14 Status of an Inverse Approach for Normal and Coincidence PGNAA
Xiaogang Han and Robin P. Gardner
2005 ANS Winter meeting. November 13-1, 2005 Washington, D.C.
15 The Monte Carlo Code CEARCPG for Coincidence Prompt Gamma-
Ray Neutron Activation Analysis
Xiaogang Han and Robin P. Gardner
The 6th International Topical Meeting on Industrial Radiation and
Radioisotope Measurement Applications
16 Coincidence counting for PGNAA application: Is it the optimum
method?
W.A. Metwally, C.W. Mayo, X. Han and R.P. Gardner
Journal of Radioanalytical and Nuclear Chemistry, Vol. 265, No.
2(2005) 309-314
17 Development of Monte Carlo Code For Coincidence Prompt Gamma
Neutron Activation Analysis.
Xiaogang Han, Robin P. Gardner and Weijun Guo
Monte Carlo 2005 Topical Meeting. Chattanooga, Tennessee, April
1721, 2005.
18 MWD/LWD neutron tool response Monte Carlo Simulation for
accuracy and HA/HZ well application.
Xiaogang Han and Hezhu Yin
ExxonMobil Company Report
19 Practical Implementation of Coincidence Prompt Gamma-Ray
Neutron Activation Analysis.
W.A. Metwally, R. P. Gardner and X. Han
Transactions of the American Nuclear Society, 2003 Winter Meeting,
New Orleans, LA Nov. 2004 Vol.89, P. 486-487
20 A New NaI Detector Arrangement for Efficient Detection of High
Energy Gamma Rays,
R.P Gardner, W.A. Metwally and Xiaogang Han
Journal of Radioanalytical and Nuclear Chemistry. Volume 264,
Number 1, March 2005, 133 137
21 Measurement of fast-neutron Capture Cross Section for 159Tb and
169Tm*
Weixiang Yu and Xiaogang Han
Nuclear Science and Techniques August 20, 1998 Vol.9, No.3
22 Measurement of Cross Section for 92Mo(n,p)92mNb Reaction and
Deduction of Low Energy Neutron
Zhao, Wenrong. Lu, Hanlin, Yu, Weixiang, Han, Xiaogang, Huang,
Xiaolong
Communication of Nuclear Data Progress No.20(1998) P1
23 Excitation Functions of Reactions from d+Ti, d+Mo, P+Ti and p+Mo
Wenrong Zhao, Weixiang Yu, Xiaogang Han and Hanlin Lu
Communication of Nuclear Data Progress No.19 (1997) P17
24 Measurement of Cross Section for 175Lu(n,2n)174m,gLu Reaction
Xiaogang Han, Hanlin Lu and Weixiang Yu
Communication of Nuclear Data Progress No.19 (1997) P15
25 Cross Section for 176Hf(n,2n)175Hf Reaction
Communication of Nuclear Data Progress No.19 (1997) P10
Han, Xiaogang, Yu, Weixiang and Lu, Hanlin
26 Cross Section Measurement in Neutron Energy Range of 612 MeV
Communication of Nuclear Data Progress No.19 (1997) P7
Weixiang Yu, Hanlin Lu, Wenrong Zhao and Xiaogang Han
27 Activation Cross Section Measurement for the 180Hf ( n , )181Hf
Reaction
HanLin Lu and Xiaogang Han
Communication of Nuclear Data Progress No.17 (1997) P13
28 Measurement of the neutron yields from 7Li(p,n)7Be Reaction (thick
target) with incident energies from 1.885 to 2.0 MeV
Yu, Weixiang, Yue, Gang, Han, Xiaogang
Medical Physics Vol.25, No.7, July 1998, part 1
29 The Effect of Low Energy Neutron on Activation Cross Section
Measurement
Xiaolong Huang, Weixiang Yu, Xiaogang Han, Wenrong Zhao
Nuclear Science and Engineering Vol.131, Number 2, Feb 1999 P267
30 Measurement of cross section for 92Mo(n,p)92mNb reaction and
deduction of low energy neutron
Zhao, Wenrong. Lu, Hanlin, Yu, Weixiang, Han, Xiaogang, Huang,
Xiaolong
IAEA, International Nuclear Data Committee INDC(CPR)-
047/L,1,1998
31 Neutron Activation Cross Section Measurements and Evaluations in
CIAE
Huang, Xiaolong, Lu, Hanlin, Zhao, Wenrong, Yu, Weixiang, Han,
Xiaogang.
IAEA, International Nuclear Data Committee INDC (CPR)-045
32 The Effect lf Low Energy Neutrons from Monoenergetic Neutron
Source on Activation Cross Section measurements
Xiaolong Huang, Weixiang Yu, Xiaogang Han, etc
High Energy Physics and Nuclear Physics, Vol. 22, No. 12. Dec.
1998
33 Cross Section Measurements for Production of Perturbed Angular
Correlation Probe Nuclei at HI-13 Tandem Accelerator
Yongjun Xu, Rong wang, Weixiang Xu, Xiaogang Han
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2001 Vol.35 No.6 P.547-550
Patents
1 Inelastic Background Correction for a Pulsed-Neutron Instrument.
Pending
2 Use of Chemically and Geologically Consistent Constraints for
Obtaining Elemental Yields Downhole. Pending
3 Method for Determining Formation Water Resistivity from a Wireline
Pulsed Neutron Device. Pending
4 Pulsed Neutron Based Monitoring of CO2 in Enhanced Oil Recovery
and Sequestration Projects. Pending
5 Real-Time Lithology and Mineralogy interpretation. Filing

* References Available Upon Request

Work Experience

03/2006 present Research Scientist, Baker Atlas/Inteq, Baker Hughes, Inc.
FLeX (Formation Lithology Explorer) logging tool design and interpretation algorithm
development. Primarily responsible for the interpretation package design including gamma ray
spectroscopy analysis, environmental corrections and lithology/mineralogy interpretation.
Pulsed neutron logging tool field support. Provide log interpretation charts and completion
specific modeling support for RPM (Reservoir Performance Monitor) and GasView tools.
Develop specific-purpose Monte Carlo modeling codes for LWD and wireline logging tool
design.
Actively involved in the development of next generation nuclear logging tools.
Develop real time log products such as an optimization method used for real-time lithology and
mineralogy interpretation.
Development of MatLab based GUI code for mineralogy interpretation.
09/2009 present Project manager of Monte Carlo code development, Baker Atlas/Inteq, Baker
Hughes, Inc.
Develop software patches for the general purpose Monte Carlo simulation code, MCNP5 for
specific applications such as neutron-gamma coupled transport problem in subsurface logging
environments. Among the enhanced features are elemental spectral tally, formation zone tally,
pulse height tally and timing tally, etc.
01/2008-12/2008 Project manager of environmental correction for SpectraLog tool and GR tools
at Baker Atlas
Developed the new algorithms used for environmental corrections of SpectraLog tool and GR
tools. The new algorithms include improved borehole size, mud weight and borehole potassium
corrections. The new algorithms were developed based on MCNP models and Lab
measurements. They have been implemented into log interpretation code and a paper was
published at the 2009 SPWLA Annual Symposium.
08/2005 03/2006. Post-Doc research associate in Nuclear Engineering Department, NC State
University
Implemented the differential operator techniques in code CEARCPG
Taught Monte Carlo training classes for the graduate students.
05/2005 08/2005. CRP collaboration project with Los Alamos National Laboratory, NC State
University
Investigated the feasibility of adding detector response in MCNP code. A computer code was
developed for calculating the detector response function of Germanium detector based on
Semi-empirical model. The simulated spectra were benchmarked with the experimental results.
The investigation results proved the feasibility of implementing the DRF into MCNP.
08/2004 05/2005. Coincidence C/O (Carbon/Oxygen) logging tool conceptual design. NC
State University
An innovative C/O logging tool was designed using coincidence techniques at CEAR (Center for
Engineering Applications of Radioisotopes). This new tool was investigated experimentally and
validated by Monte Carlo simulation. A specific purpose Monte Carlo was developed to simulate
the neutron, gamma and neutron/gamma transport and it is capable of performing coincidence
simulation. Two types of well-type detector designs were tested with NaI detectors and BGO
detectors. The simulated results were successfully benchmarked with experimental
measurements. A paper was published at the 2005 SPWLA Annual Symposium.
06/2004 - 08/2004. Summer Internship at the Upstream Research Company, ExxonMobil.
Investigated neutron porosity tool and gamma ray density tool response in HA/HZ (High-angle
horizontal well) wells. A large number of cases were simulated with the general purpose Monte
Carlo code (MCNP5). The results were published in a company research report and presented
at 2004 Fall SPWLA Topical Conference of Formation Evaluation in High-Angle and Horizontal
Wells, in New Mexico.
01/2004 05/2004. To design experiment to benchmark code CEARCPG.
Two benchmark experiments were designed at the beginning of semester to validate MC code
CEARCPG. One experiment was done with pure sulfur sample and the other was done with
mixture sample of sulfur and mercury.
08/2003 12/2003. To design a specific Monte Carlo Code CEARCPG used to simulate
CPGNAA (Coincidence Prompt Gamma Neutron Activation Analysis)
A specific Monte Carlo code CEARCPG was developed to simulate the CPGNAA process. A
new algorithm used to sample the neutron induced gamma rays was developed at CEAR
which enable to sample the prompt gamma rays in coincidence.
09/2001 07/2003. Research projects at North Carolina State University
Investigated Electron Channeling effect on detector response function of Si(Li) X ray detector
Simulation of the response of density tool by using polarized gamma ray beam
07/1995 07/2001 China Institute of Atomic Energy Beijing. P.R.China
Nuclear reaction cross-section measurement; Neutron activation analysis (PGAA analysis);
Gamma detection and Gamma Spectroscopy. IAEA CRP program.