| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a N<SB>2</SB>O component measuring apparatus for measuring a concentration of a N<SB>2</SB>O component in an environment such as a patient room or a treatment room. <P>SOLUTION: The N<SB>2</SB>O component measuring apparatus is provided with a cell 14 having supply/exhaust lines 12, 13 of a gas 11 sucked from the patient room or the treatment room 100 in a hospital through a pump 101, a laser radiation means 22 for radiating a laser light 21 to the gas 11 supplied to the cell 14 and a photodetector means 23 for finding an absorption spectrum within a wavelength band of 1515-1540 mn when the absorption spectrum is measured by radiating the laser light and finding the concentration of the N<SB>2</SB>O based on the absorption spectrum. <P>COPYRIGHT: (C)2004,JPO</p> |
