Anisotropic deformation of polystyrene particles under MeV Au ion bombardment

CHEN Yan 1 LIU Yingmin1 ZHAO Ziqiang1 LAN Ding2 WANG Yuren2 1

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Anisotropic deformation of polystyrene particles under MeV Au ion bombardment

更新时间：2021-03-12

- Anisotropic deformation of polystyrene particles under MeV Au ion bombardment
- NUCLEAR TECHNIQUES Vol. 32, Issue 3, (2009)
- 作者机构：
  
  1. 北京大学物理学院重离子物理研究所,核物理与核技术国家重点实验室
  2. 中国科学院力学研究所国家微重力实验室
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10675010)资助
- DOI：
  CLC： O632.12
- Published：01 March 2009
- 稿件说明：
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[1]陈燕,刘英民,赵子强,蓝鼎,王育人.MeV金离子辐照聚苯乙烯微球的各向异性形变[J].核技术,2009,32(03):210-213.

CHEN Yan 1 LIU Yingmin1 ZHAO Ziqiang1 LAN Ding2 WANG Yuren2 1. Anisotropic deformation of polystyrene particles under MeV Au ion bombardment[J]. Nuclear techniques, 2009, 32(3): 210-213.
[1]陈燕,刘英民,赵子强,蓝鼎,王育人.MeV金离子辐照聚苯乙烯微球的各向异性形变[J].核技术,2009,32(03):210-213. DOI：

CHEN Yan 1 LIU Yingmin1 ZHAO Ziqiang1 LAN Ding2 WANG Yuren2 1. Anisotropic deformation of polystyrene particles under MeV Au ion bombardment[J]. Nuclear techniques, 2009, 32(3): 210-213. DOI：

摘要

在低温条件下用Au离子辐照法实现了聚苯乙烯（PS）微球的各向异性形变。PS微球在离子辐照下呈现出不同于SiO2微球的形变特点。照后PS微球整体收缩

在平行于离子入射方向上收缩尤甚

使照后PS微球呈长轴垂直与离子入射方向的椭球。采用加掩膜辐照法

在同一晶体上特定区域实现微球的形变。此工作为重离子辐照在光子晶体中引入可控缺陷奠定了基础。

Abstract

Bombarded by MeV Au ions at LN temperature

spherical polystyrene (PS) particles were changed into ellipsoids. The anisotropic deformation of PS particles differs from SiO2 particles. After irradiation

a PS particle shrinks apparently. The diameter in the direction of beam incidence decreased more severely than in the direction vertical to beam incidence

leading to ellipsoidal shape of the irradiated particles. By covering the PS photonic crystal with a copper mask

deformed PS particles can be made in specific areas of the photonic crystal. This work could be of help for future investigation of introducing controllable defect in photonic crystal.

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