New results on the vibrational relaxation time in compressed nitrogen at 293 K

✍ Scribed by M. Chatelet; J. Chesnoy

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 237 KB
• Volume: 122
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(85)87267-5

✦ Synopsis

Wcc&al 5 Ocmher 19R5-in lin;ll form 11 Ocmbcr 1985 Thl: vihraknol cncrgy relaxation lime r, has hcen mcasurcd in supsrcrikal nirrogsn Tar the densiIy renge (0.434-I .33)X 10" molecules/c~ at room kmprrsturr by exciting Ihe vihrakn x-in the r~srmne and probing the population by monitoring the induced lluoracence. The rslaralion lime T, in nilrogen gns sxImpolnled 10 1 awn is equal LO or larger Ihan 7 s. which is 11w longus~ tnperimcn~al value rtporwd to dnw. but aill six limes smaller than Ihr theorekxd es1imalc. In the dense phase. WC rslimaw that rclararion raws have previously been overrsGmaird by a~ IIZSI an order of magnitude. pointing out the hclwr rrlinhility or the direc: measuremsn~ carried out hcrc.