原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
2期
223-227
,共5页
UF6分子%共振函数%共振转移速率
UF6分子%共振函數%共振轉移速率
UF6분자%공진함수%공진전이속솔
UF6 molecule%resonance function%resonance transfer rate
本文利用长程力碰撞理论计算了235 U F6和238 U F6同位素分子间ν3振动能量的近共振碰撞转移过程，得到了不同温度下共振函数随能量差变化的曲线，发现共振函数的宽度随温度的升高而增大。计算了不同温度下共振转移几率和共振转移速率，发现它们随温度的升高而减小。可见，235 U F6和238 U F6同位素分子的平动会降低其共振转移几率和共振转移速率，这为激光光化学法分离铀同位素提供了理论依据。
本文利用長程力踫撞理論計算瞭235 U F6和238 U F6同位素分子間ν3振動能量的近共振踫撞轉移過程，得到瞭不同溫度下共振函數隨能量差變化的麯線，髮現共振函數的寬度隨溫度的升高而增大。計算瞭不同溫度下共振轉移幾率和共振轉移速率，髮現它們隨溫度的升高而減小。可見，235 U F6和238 U F6同位素分子的平動會降低其共振轉移幾率和共振轉移速率，這為激光光化學法分離鈾同位素提供瞭理論依據。
본문이용장정력팽당이론계산료235 U F6화238 U F6동위소분자간ν3진동능량적근공진팽당전이과정，득도료불동온도하공진함수수능량차변화적곡선，발현공진함수적관도수온도적승고이증대。계산료불동온도하공진전이궤솔화공진전이속솔，발현타문수온도적승고이감소。가견，235 U F6화238 U F6동위소분자적평동회강저기공진전이궤솔화공진전이속솔，저위격광광화학법분리유동위소제공료이론의거。
The resonant energy transfer process of ν3 vibration energy for 235 UF6 and 238 UF6 isotopic molecules was studied by long distance collision theory ,and the curves of resonance function with energy difference were obtained .The calculated result shows that the width of resonance function rises with the increase of temperature .In addition , the resonant transfer probability and rate were calculated under different temperatures , and it is found that they decrease with the increase of temperature and the translation of 235 UF6 and 238 UF6 isotopic molecules can reduce the resonant transfer probability and rate .These values can provide a reference for actual separation of uranium isotopes .
