Nuclear Science and Techniques

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS

Wakefields studies for the SXFEL user facility

Besides the original seeded undulator line, in the soft X-ray free-electron laser (SXFEL) user facility in Shanghai, a second undulator line based on self-amplified spontaneous emission is proposed t...

Ming-Hao Song, Chao Feng, Da-Zhang Huang, Hai-Xiao Deng, Bo Liu, Dong Wang

2017, 28 (7): 90

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Biasing transition rate method based on direct MC simulation for probabilistic safety assessment

Direct Monte Carlo (MC) simulation is a powerful probabilistic safety assessment method for accounting dynamics of the system. But it is not efficient at simulating rare events. A biasing transition r...

Xiao-Lei Pan, Jia-Qun Wang, Run Yuan, Fang Wang, Han-Qing Lin, Li-Qin Hu, Jin Wang

2017, 28 (7): 91

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Temporal characteristic analysis of single event effects in pulse width modulator

In this paper, the nature and origin of single event effects (SEE) are studied by injecting laser pulses into different circuit blocks, combining with analysis to map pulse width modulators circuitry ...

Wen Zhao, Xiao-Qiang Guo, Wei Chen, Zu-Jun Wang, Hong-Xia Guo, Yuan-Ming Wang

2017, 28 (7): 92

SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS

Injection transient study using a two-frequency bunch length measurement system at the SSRF

The bunch length can be measured by comparison of two frequency components of a synchrotron beam signal. An online bunch length measurement system has been implemented based on this method. Working f...

Li-Wu Duan, Yong-Bin Leng, Ren-Xian Yuan, Zhi-Chu Chen

2017, 28 (7): 93

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Adsorption of uranium (VI) onto amidoxime-functionalized ultra-high molecular weight polyethylene fibers from aqueous solution

Amidoxime-functionalized ultra-high molecular weight polyethylene fibers (UHMWPEF-AO) were used to absorb uranium U(VI) from aqueous solutions. In this paper, we study effects of pH, initial U(VI) con...

Chun-Yu Xie, Shi-Pei Jing, Yu Wang, Xiao Lin, Hong-Liang Bao, Cheng-Zhi Guan, Chan Jin, Jian-Qiang Wang

2017, 28 (7): 94

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS

Simulations of mass attenuation coefficients for shielding materials using the MCNP-X code

In this paper, mass attenuation coefficients of concrete, bricks and cement plaster, as shielding materials, are calculated at 59.5, 356, 662, 1173, 1274 and 1333 keV by using the MCNP-X (version 2.4....

Huseyin Ozan Tekin, Tugba Manici

2017, 28 (7): 95

NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE

Synthesis of thorium sol for fabricating fuel kernels

To fabricate thorium-based fuel kernel for solid fuel molten salt reactor, a component of tri-structural isotropic fuel particles is mostly based on sol–gel method. The preparation of thorium so...

Feng-Xia Wang, Chao Yan, Chang-Qing Cao, Hai-Tao Jiang, Jun Lin, Zhi-Xuan Cheng, Zhi-Yong Zhu

2017, 28 (7): 96

NUCLEAR ENERGY SCIENCE AND ENGINEERING

Influences of ⁷Li enrichment on Th–U fuel breeding for an improved molten salt fast reactor (IMSFR)

The molten salt fast reactor (MSFR) shows great promise with high breeding ratio (BR), large negative temperature coefficient of reactivity, high thermal–electric conversion efficiency, inherent...

Guang-Chao Li, Yang Zou, Cheng-Gang Yu, Jian-Long Han, Jin-Gen Chen, Hong-Jie Xu

2017, 28 (7): 97

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS

The AMS measurement of ²³⁶U at CIRCE

Accelerator mass spectrometry (AMS) is an ultrasensitive technique for measuring long-lived actinides, e.g., 236U, 237Np and 239Pu isotopes. In order to improve the detection limit for actinides abund...

Yong-Jing Guan, Hui-Juan Wang, Mario De Cesare, Filippo Terrasi

2017, 28 (7): 98

Invited Review Article

Collective flow and hydrodynamics in large and small systems at the LHC

In this article, we briefly review the recent progress on collective flow and hydrodynamics in large and small systems at the Large Hadron Collider (LHC), which includes the following topics: extract...

Hui-Chao Song, You Zhou, Katarina Gajdosova

2017, 28 (7): 99

NUCLEAR ENERGY SCIENCE AND ENGINEERING

DEM-CFD simulation of modular PB-FHR core with two-grid method

For designing and optimizing the reactor core of modular pebble-bed fluoride salt-cooled high-temperature reactor (PB-FHR), it is of importance to simulate the coupled fluid and particle flow due to s...

Feng-Rui Liu, Xing-Wei Chen, Zhong Li, Na-Xiu Wang

2017, 28 (7): 100

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Energy response correction for electronic personal dosimeter using channel ratio method

An electronic personal dosimeter mainly uses a Si-PIN photodiode as X- and gamma-ray detectors. The photon energy response of this instrument is inconsistent in the case of no correction, which seriou...

Ping Huang, You-De Zhang, Yong Yang, Cong-Hua Zhang, Lan Gong, Qian Yang

2017, 28 (7): 101

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Simulation of a new hybrid MPGD with improved time resolution and decreased discharge probabilities using Garfield++

In this work, a new hybrid MPGD consisting of two GEM foils and a metallic mesh was proposed. Based on the simulation studies, this design can significantly reduce the rise time of signal and has a be...

Sheng-Ying Zhao, Hui-Yin Wu, Bi-Tao Hu, Hui-Rong Qi, Yi Zhang

2017, 28 (7): 102

NUCLEAR ELECTRONICS AND INSTRUMENTATION

Implementation of a cusp-like for real-time digital pulse shaper in nuclear spectrometry

Pulse shaping, which improves signal-to-noise ratio excellently, has been extensively used in nuclear signal processing. This paper presents a cusp-like pulse-shaping technique developed through the r...

Jun Liu, Jian Yang, Guo-Qiang Zeng, Kai-Qi Zhang, Shi-Long Wei, Liang-Quan Ge

2017, 28 (7): 103

NUCLEAR ELECTRONICS AND INSTRUMENTATION

A detector setup for the measurement of angular distribution of heavy-ion elastic scattering with low energy on RIBLL

A detector setup for the measurement of angular distribution of heavy-ion elastic scattering at energies around Coulomb barrier on the radioactive ion beam line in Lanzhou at the heavy-ion research fa...

Gao-Long Zhang, Yong-Jin Yao, Guang-Xin Zhang, Zhen-Wei Jiao, Cheng-Jian Lin, Ya-Zhou Niu, Wei-Wei Qu, et al.

2017, 28 (7): 104

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(2019-06-10)