质谱仪光束系统的进一步实验室研究和平流层飞行。

Further laboratory studies and stratospheric flight of a mass spectrometer beam system.

作者信息

Mauersberger K, Finstad R

机构信息

School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455.

出版信息

Rev Sci Instrum. 1979 Dec;50(12):1612. doi: 10.1063/1.1135777.

DOI:10.1063/1.1135777

PMID:18699447

Abstract

A gas expansion system combined with a mass spectrometer has been tested and flown successfully in the stratosphere. Through a sequence of orifices and high speed pumping, gas particles were formed into a molecular beam and analyzed by a sensitive mass spectrometer. During two balloon flights, vertical profiles of all major atmospheric constituents as well as O(3), CO(2), H(2)O and others were obtained. Gases such as (38)Ar and (16)O(17)O provided in-flight calibration standards. The sensitivity of the system was such that gases with mixing ratios of 10 ppb at an ambient pressure of about 10 mbar were detectable.

摘要

一种与质谱仪相结合的气体膨胀系统已在平流层成功进行测试并飞行。通过一系列孔口和高速泵送，气体颗粒形成分子束并由灵敏的质谱仪进行分析。在两次气球飞行期间，获取了所有主要大气成分以及臭氧、二氧化碳、水等的垂直分布。诸如氩 - 38和氧 - 16氧 - 17等气体提供了飞行中的校准标准。该系统的灵敏度使得在约10毫巴的环境压力下，混合比为10 ppb的气体能够被检测到。