前段时间看一篇高压方面的总结性文献，其中提到高压在加速放射性核素衰变方面的研究，说高压可以加速核素7Be的衰变，感觉很有意思，就查了下，找到一篇文章（摘要附在后面，有兴趣的可以看看），稍看了一下，可惜高压对衰变常数的影响还不是很大，但毕竟是种可能，或许某一天我们能达到很高的压力，能大大促进核素的衰变，或者我们能找到一种非常有效的手段来彻底处理核废料，未来的事情，谁能说的定呢？
要是有朋友知道更多可能加速放射性核素衰变的手段，欢迎来给我科普一下，预先谢谢了啊
附：
Beryllium-7 in Be(OH)2 gel was compressed in diamond-anvil pressure cells up to 442 kbar at room temperature. By counting the activity of 7Be, the decay rate for the conversion of 7Be to 7Li via electron capture was measured. The decay constant of 7Be, λ, was found to increase, but the rate of increase decreased with increasing pressure. A quadratic regression of the data yields (λ−λ0)/λ0=(4.87×10−5)P−(5.9×10−8)P2, where the subscript zero denotes zero pressure and P stands for pressure in kilobar. Thus, λ of 7Be increases by about 1% at 400 kbar. The observed data set can be rationalized by an increase in electron density near the nucleus of 7Be at high pressures. This result may bear some implications for the conversion of 40K to 40Ar, which has been widely adopted to date geological events.
- Be-7;
- radioactive decay;
- high pressure;
- gamma-ray spectroscopy
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