Impact Production of carbon clusters by use of a gas gun -Model experiment of space carbon reactions-

为了模拟小行星撞击土卫六(卫星和行星)引起的高温气体反应，利用二级轻气炮进行了撞击反应实验。一颗警察碳酸盐子弹加速到6.5公里/S，击中铁(水铁或水正己烷铁)靶，从而产生多种碳簇。在这里，成功地制备了麻袋状纳米碳和聚合物包裹的纳米碳。从热羽流中CN分子的发射光谱可知，CN的转动温度约为4600K，CN的寿命约为20us。产生的碳样品用纯水回流并进行闪蒸。用高效液相色谱仪对样品进行分析。因此，我们可以确认氨基酸(甘氨酸、丙氨酸和丝氨酸)的生产。

In order to simulate high-temperature gas reactions by asteroid's impact on Titan (satellites and planets), the impact reaction experiment by use of a 2 stage light gas gun has been carried out. A policarbonate bullet is accelerated to 6.5 km/s and hits an iron (water + iron or water + hexane + iron) target, by which many kinds of carbon clusters are produced. Here, sack-like nano-carbons and polymer-encapsulated nano-carbons are successfully produced. From emission spectrum of CN molecules in the hot plume, CN rotation temperature is about 4600 K and CN life-time is about 20 us. Produced carbon samples are refluxed by pure water and dabcylized. The samples are analyzed by a HPLC. As a results, we can confirm production of amino acids (glycine, alanine and serine).