Dynamic behavior of aerosol particles under laser irradiation and production of multi-component particles

激光照射下气溶胶颗粒的动态行为及多组分颗粒的产生

• 批准号: 02455013
• 负责人: TAKAHASHI Kanji
• 金额: $ 3.9万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-02455013/
• 关键词: Aerosols; Laser Irradiation; Laser Heating; Multi-component Particles; Ultrafine Particles; レーザー照射; レ-ザ-照射; 粒子加熱

1. A quadrupole cell was made for levitating a aerosol particle and its performance was examined both theoretically and experimentally. Single carbon particle having about 10um was levitated stably for more than several hours, and under a certain condition a group of many particles was also hold quasi-stably at near center of the cell.2. Temperature rises of particle in variety of conditions of particle materials, medium gas, wavelength and intensity of laser were calculated theoretically and confirmed experimentally by measuring Brownian diffusivity of particles with photon correlation spectroscopy.3. Trajectories of moving particles in the cell under laser light irradiation were obtained experimentally by using a video camera connected to memorizing system. Photophonetic forces acting on a particle under laser irradiation can be were estimated based on those data.4. Ultrafine aerosol particles of silver were produced and a method was developed to concentrate particles without agglomeration. Physical properties of those high concentrated and dispersed particles are being examined by several methods.

1.研制了一种用于悬浮气溶胶粒子的四极池，并对其性能进行了理论和实验研究。单个约10 μ m的碳颗粒稳定悬浮数小时以上，在一定条件下，一组多个碳颗粒也准稳定地悬浮在电池中心附近.理论计算了颗粒材料、介质气体、激光波长和强度等条件对颗粒温升的影响，并通过光子相关光谱法测量颗粒的布朗扩散率进行了实验验证.用摄像机与存储系统相连接，实验获得了激光照射下细胞内运动粒子的运动轨迹。根据这些数据，可以估算出激光作用下颗粒所受的光声力.生产了银的超细气溶胶颗粒，并开发了一种方法来浓缩颗粒而不附聚。这些高浓度和分散的颗粒的物理性质正在通过几种方法进行检查。

项目成果

岩本 猛: "動的電場による粒子保持" エアロゾル研究. 6. 165-170 (1991)

Takeshi Iwamoto：“动态电场的颗粒保留”气溶胶研究 6. 165-170 (1991)。

IWAMOTO, Takeshi, et al.: "Theoretical study on the stability characteristics of a quadrupole cell" Aerosol Science and Technology. Vol.15. 127-134 (1991)

IWAMOTO、Takeshi 等人：“四极电池稳定性特性的理论研究”气溶胶科学与技术。

伊藤 正行: "動的光散乱による鎖状エアロゾル粒子重量濃度のinーsitu測定" エアロゾル研究. 5. 196-202 (1990)

Masayuki Ito：“通过动态光散射原位测量链式气溶胶颗粒重量浓度”Aerosol Research，5. 196-202 (1990)。

IWAMOTO, Takeshi, et al.: "Laser heating and dynamic stability of aerosol particle in a quadrupole cell" Theoretical and Applied Mechanics. Vol.40. 63-69 (1991)

IWAMOTO、Takeshi 等人：“四极池中气溶胶颗粒的激光加热和动态稳定性”理论与应用力学。

T.Iwamoto: "Theoretical study on the stability characteristics of a quadrupole cell" Aerosol Science and Technology. 15. 127-134 (1991)

T.Iwamoto：“四极电池稳定性特性的理论研究”气溶胶科学与技术。