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γ辐照对铷频标物理部分参数影响的研究 被引量:1

The Effects of γ Irradiation on Characteristic of Rubidium Atomic Frequency Standard Physics Package
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摘要 通过γ辐照试验,分析了辐照对铷频标物理部分各项参数的影响。辐照后,振荡回路的电流变化对频标准确度的影响可忽略不计;光电二极管受辐照后会使短期稳定度变差,辐照剂量率小于1 400 rad(S i)/h,不会对频标的短稳性能产生显著影响;控温电路受辐照后会引起控温点移动,从而改变频率准确度。 The effects of irradiation on Rubidium Atomic Frequency physics package characteristic were analyzed by γ irradiation experimentation. After irradiation, the effect of change of electric current for oscillator circuit on frequency stability is very small. Photoelectricity diode causes short term frequency stability inferior. The effect is minor if radiation is less than 1 400 rad (Si)/h. Temperature control circuit causes temperature control point movement, and frequency accuracy is altered.
出处 《宇航计测技术》 CSCD 2008年第2期37-42,共6页 Journal of Astronautic Metrology and Measurement
关键词 Γ辐照 原子频率标准 物理参数 Gamma Irradiation Rubidium Atomic frequency standard Physics characteristic
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