High-speed plasma imaging: A lightning bolt

被引：3

作者：

Wurden, GA

Whiteson, DO

机构：

[1] Los Alamos National Laboratory, Los Alamos

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 1996年 / 24卷 / 01期

关键词：

D O I：

10.1109/27.491702

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Using a gated intensified digital Kodak Ektapro camera system, we captured a lightning bolt at 1000 frames per second, with 100-mu s exposure time on each consecutive frame. As a thunder storm approached while darkness descended (7:50 pm) on July 21, 1994, we photographed lightning bolts with an f22 105-mm lens and 100% gain on the intensified camera. This 15-frame sequence shows a cloud to ground stroke at a distance of about 1.5 km, which has a series of stepped leaders propagating downwards, followed by the upward-propagating main return stroke.

引用

页码：83 / 84

页数：2