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Citation: Cai Zhonghou, Hou Huiqi, Qin Qizong. VIBRATIONAL RELAXATION OF UFB IN SF₆-UF₆ SYSTEM[J]. Acta Physico-Chimica Sinica, ;1987, 3(02): 197-203. doi: 10.3866/PKU.WHXB19870215 shu

VIBRATIONAL RELAXATION OF UFB IN SF₆-UF₆ SYSTEM

1.
Laser Chemistry Laboratory; Fudan Universiy; Shanghai

Received Date: 3 September 1985
Available Online: 15 April 1987

The vibrational energy transfer in SF_6-UF_6 system has been investigated using a pulsed TEA CO_2 laser for excitation of SF_6 and SF_6~* is employed as a sensitizer to excite UF_6 molecule. The transient changes in UV absorption of the vibration- ally excited UF_6 molecules in 220-320 nm region have been observed. For 2.0 Torr SF_6+2.0 Torr UF_6 system, three different kinds of vibrationally excited UF_6 have been found and their V-V intermolecular energy transfer times are 6.8, 9.0 and 26 μs, the V-T energy relaxation times are 42, 8.0 and 1 ms respectively. The vibrational energy transfer mechanism of SF_6-UF_6 system has been discussed.
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沈阳化工大学材料科学与工程学院沈阳 110142

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VIBRATIONAL RELAXATION OF UFB IN SF6-UF6 SYSTEM

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VIBRATIONAL RELAXATION OF UFB IN SF₆-UF₆ SYSTEM