Senior Research Scientist of nuclear technology and application

Division of Nuclear Technology & Application

liujh@tsinghua.edu.cn

(+86 10) 6072-9808

Education background

PhD, Nuclear Power Institute of China, Reactor Engineering and Reactor Safety, 1998
B.S., Nuclear Power Institute of China, Reactor Engineering and Reactor Safety, 1991

Experience

01/1999-present, Senior Research Scientist, Division of Nuclear Technology & Application, INET
09/1987-12/1998, Research Scientist, Nuclear Power Institute of China

Areas of Research Interests/ Research Projects

My research interests are in the areas of nuclear technique applications, CT reconstruction, embedded system and DSP software/hardware designing, image recognition, and abnormal diagnosis in NPP, etc..

Nuclear Technology and Application
I have completed the CT image reconstruction of "container (large object) CT detection system" which is a key scientific and technological research project in the 10th Five Year Plan, and independently completed the CT image reconstruction program designing based on convolution back projection reconstruction algorithm. I have completed the design and programming of CT image software of baggage CT inspection system. The experimental results show that satisfactory results can be obtained by using this program, and CT images have relatively high density resolution.
According to the characteristics of different materials with different density, the color of different substances was calibrated. A database system based on the relationship between gray value of CT image and material density was established.
The embedded hardware and software systems based on ARM7 and ARM9 were designed independently. ARM9 realized data communication, digital I/O, network communication and other functions of 8 multi-functional serial ports. The relevant temperature and humidity acquisition program, SMS sending/receiving program were compiled also.
Using uClinux operating system and based on double ARM7 board, the software design of CT data acquisition was completed. Based on TMS320C6701 EVM board, the CT reconstruction program design of DSP assembly language was compiled.

Reactor engineering and reactor safety
The method of positioning the loose parts in NPPs by using neural network technology and the method of estimating the quality of loose parts by using neural network technology and pattern recognition technology were proposed. The mathematical and physical model of the impact characteristics of the loose parts in NPPs was established, and the characteristics of the loose parts in NPPs were described in theory.
The technique of measuring the instantaneous negative temperature coefficient of pulsed reactor using neutron noise and temperature noise was completed.
The research project of physical characteristic model of neutron noise caused by vibration of reactor internal components has been completed. Through the analysis of the neutron noise signal, we can get the modal characteristic parameters, such as the intrinsic frequency, vibration quality, etc.

Academic Achievement

Publications

1

AN   Ji-gang, WU Hai-feng, LIU Jin-hui, WANG Li-qiang, CONG Peng, 60Co    container CT inspection system, Nuclear Electronics & Detection    Technology, Vol. 25, No. 2 (2005). P111

2

LIU   Jin-hui, AN  Ji-gang, WU Hai-feng, XIANG Xin-cheng, GAO Bao-zeng, The   Nonlinear Effect  While Measuring on the Container CT Image’s Quality, Journal of   Isotopes,  Vol. 18, No. 1-2 (2005). P43

3

LIU   Jin-hui, XIANG  Xin-cheng, Designing on ICT reconstruction software   based on DSP techniques,  Nuclear Electronics & Detection   Technology, Vol. 26, No. 5 (2006). P576

4

LIU   Jin-hui, Design  of high speed data-sampling software based on PCI bus   for industrial CT,  Nuclear Electronics & Detection Technology, Vol.   27, No. 1 (2007). P8

5

LIU   Jin-hui, WU  Zhi-fang, Design of database management system for 60Co   container inspection  system, Nuclear Electronics & Detection   Technology, Vol. 27, No. 2  (2007). P187

6

ZHANG   Xi, LIU  Jin-hui, Design and Application of Data Acquisition System in   Spiral CT,  Nuclear Electronics & Detection Technology, Vol.27 No.5   (2007), P886

7

AN   Hong-zhen, LIU  Jin-hui, Algorithm Study on Edge Extraction Used to   Reconstruct 3-D CT Image,  Nuclear Electronics & Detection   Technology, Vol.27 No.5 (2007), P876

8

Wu   ZF, Liu JH,  Experimental research on rear collimator in γ-ray industrial CT,   APPLIED  RADIATION AND ISOTOPES, Vol. 67, No. 7-8, PP1216-1219, 2009

9

ZHANG   Xi, LIU  Jin-hui, Realization Methods of 3D Visualization in Industrial   Monolayer CT,  Nuclear Electronics & Detection Technology, Vol.30   No.1 (2010), P1

10

ZHANG   Xi, LIU  Jin-hui, Design and Realization of 3D Visualization for Luggage   and Container  CT Inspection Systems, Nuclear Electronics &   Detection Technology, Vol.30  No.3 (2010), P308

11

LIU   Jin-hui, XIANG  Xin-cheng, Study on CT reconstruction for the container   CT inspection system,  Proceedings of the 5th National Conference on   Nuclear Instrument & its  Application, (2005) P6

12

Wu   Zhifang Liu  Jinhui, Experimental Research on Rear Collimator in γ-rays ICT, Proceedings    of the 14th National Conference on Nuclear Electronics & Detection    Technology, (2008) P461

13

Liu   Jinhui, Zhang  Xi, Zhou Aiping, The Software and Hardware Design of CIS   Data Sampling Based  On ARM9 Embedded System and Windows CE, Proceedings   of the 14th National  Conference on Nuclear Electronics & Detection   Technology, (2008) P823

14

3D   VISULIZATION IN  INDUSTIAL MONOLAYER CT INSPECTION SYSTEM. Zhang Xi, Liu   Jinhui. Proceedings  of the 16th International Conference on Nuclear   Engineering, ICONE16. May  11-15, 2008, Orlando, Florida, USA.

15

DESIGN   OF CT  RECONSTRUCTION SOFTWARE BASED ON THE AIR CONTAINER CT INSPECTION   SYSTEM.  Jinhui Liu, Xincheng Xiang, Zhifang Wu. Proceedings of the 17th   International  Conference on Nuclear Engineering, ICONE17. July 12-16,   2009, Brussels,  Belgium.

Last updated:2020-10-09