Volume 7, 2018

3rd China-Japan Joint Workshop on Positron Science (JWPS2017), June 8–10, 2017, Hefei, China

ISBN: 978-4-86348-708-6

» Foreword

The 3^rd China-Japan Joint Workshop on Positron Science (JWPS2017) was held on June 9–11, 2017 at University of Science and Technology of China (USTC), Hefei, China. 96 researchers, including 35 students, from China and Japan participated in the workshop in which 35 talks and 41 posters were presented. The speakers introduced the latest research results across a wide range of positron science related topics, and intensive discussions among the participants continued throughout the workshop sessions and into the social gatherings each evening.

This workshop was the third in the series. The first workshop, JWPS2012, was held in November 2012 at Wuhan University, Wuhan, China, and aimed to gather together scientists working in China and Japan at the forefront of research on positron science in order to share information on the most recent progress in relevant fields. One year later, a second workshop, JWPS2013, was held at the National Institute of Advanced Industrial Science and Technology (AIST), in Tsukuba, Japan. These China-Japan joint workshops provide valuable opportunities for exchanging ideas and the discussion of a wide range of subjects including positron science, material science developed/analyzed by positron techniques, and measurement techniques, etc. In particular, the workshops provide a good opportunity to promote international exchange between young researchers in positron science, thus making an important contribution to the future development of this research field.

The high quality of the contributions at JWPS2017, reflects the high-level of research activities both in China and Japan in recent years and augers well for the further progress of positron science in the Asian area in the future.

We would like to again thank to all participants and management/operations staff of the workshop.

Bangjiao Ye / Kenji Ito / Chunqing He / Nagayasu Oshima

On behalf of the organizing and Publication Committee, JWPS2017

Theory and related experiments on physics and chemistry

011001

Study on positronium Bose–Einstein condensation

Akira Ishida, Kenji Shu, Tomoyuki Murayoshi, Xing Fan, Toshio Namba, Shoji Asai, Kosuke Yoshioka, Makoto Kuwata-Gonokami, Nagayasu Oshima, Brian E. O’Rourke, Ryoichi Suzuki

PDF (897 KB)

011002

Theoretical study of native defects and positron annihilation states in BiOBr

Renqi Zhang, Bin Zhao, Bo Zhou, Wenfeng Pan, Ning Qi, Bo Wang, Zhiquan Chen

PDF (1.2 MB)

011003

Theoretical calculation of positron trapping by embedded nanoclusters

Wenfeng Pan, Bin Zhao, Renqi Zhang, Ning Qi, Bo Wang, Zhiquan Chen

PDF (743 KB)

011004

Coupled channel study of antihydrogen-hydrogen molecular resonance state

Takuma Yamashita, Yasushi Kino

PDF (810 KB)

Metals and semiconductors

011101

Effect of beam flux on radiation damage accumulation in ion-bombarded Si

Hideaki Minagawa, Shunsuke Nakanishi, Masaki Maekawa, Atsuo Kawasuso, Hidetsugu Tsuchida

PDF (569 KB)

011102

High-temperature in-situ measurements of thermal vacancies in a TiAl intermetallic compound using a desktop positron beam

Atsushi Yabuuchi, Shigeru Sakai, Masataka Mizuno, Hideki Araki, Yasuharu Shirai

PDF (548 KB)

011103

Positron lifetime studies for Ce-based bulk metallic glasses

Yong Zhao, Bo Zhang, Kiminori Sato

PDF (417 KB)

011104

Defect related room temperature ferromagnetism in N-implanted ZnO film

Juping Xu, Qiang Li, Bingchuan Gu, Jiandang Liu, Bangjiao Ye

PDF (906 KB)

011105

Effect of helium irradiation fluence on He_nV_m cluster evolution in nickel studied by positron annihilation spectroscopy

Yihao Gong, Shuoxue Jin, Eryang Lu, Te Zhu, Ligang Song, Daqing Yuan, Baoyi Wang, Xingzhong Cao

PDF (715 KB)

011106

Influence of copper content and pre-treatment on the structure of ZnS : Cu thin films by sulfidation

Ligang Song, Peng Zhang, Xingzhong Cao, Shuoxue Jin, Rengang Zhang, Baoyi Wang

PDF (2.7 MB)

Polymers, membranes, and porous media

011201

Pd nanoparticles entrapped in chitosan superfine fibers as a highly active and stable catalyst for the Mizoroki–Heck reaction

Linjun Shao, Yijun Du, Chenze Qi

PDF (474 KB)

011202

Study of the porosity in cellulose acetate membranes by 3γ annihilation of positrons

Shuai Wang, Cheng Yin, Zhe Chen, Yong Zhang, Jiangyu Wu, Hongjun Zhang, Jizhong Hai, Xiaobo Yang, Haiping Liu

PDF (294 KB)

011203

Aging induced enhancement of pore interconnectivity of porous silica investigated by nitrogen adsorption and cyclic voltammetry

Xiaoyu He, Bangyun Xiong, Lei Liu, Xiaonan Wang, Chunqing He

PDF (600 KB)

011204

Nanoscaled free volume holes and slow release of urea for poly(vinyl alcohol)/urea composite films

Wei Zhou, Yue Wang, Jie Hou, Lianwei Fan, Jinfeng Liu

PDF (781 KB)

011205

Subnanopore structural change of time-elapsed silica PECVD films elucidated by slow positron annihilation and ellipsometric porosimetry

Shigeru Yoshimoto, Kenji Ito, Hiroyuki Hosomi, Masaaki Takeda, Toshinori Tsuru

PDF (586 KB)

Advances in analytical techniques and instrumentation

011301

Progress report on construction of a low-energy positron diffraction (LEPD) experiment station at KEK

Ken Wada, Tetsuroh Shirasawa, Izumi Mochizuki, Masanori Fujinami, Toshio Takahashi, Masaki Maekawa, Atsuo Kawasuso, Masao Kimura, Toshio Hyodo

PDF (539 KB)

011302

Preliminary results on low-energy positron age-momentum correlation measurements based on a radioisotope-source positron beam

Kenji Ito

PDF (1.3 MB)

011303

Conceptual design of MuSR spectrometer for EMuS using Monte Carlo simulation

Ziwen Pan, Xiaojie Ni, Bangjiao Ye

PDF (1.8 MB)

011304

Development of a high-brightness, energy-tunable positronium beam for surface scattering experiments

Koji Michishio, Luca Chiari, Fumi Tanaka, Nagayasu Oshima, Yasuyuki Nagashima

PDF (599 KB)

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