Reynolds M A, Swindle D L, Wright R J, Kuroda P K
Science. 1967 Dec 29;158(3809):1692-3. doi: 10.1126/science.158.3809.1692.
Low-level activities of iodine-131, barium-140, and strontium-89 were found in a series of rain samples collected at Fayetteville, Arkansas, during the period from late June through August 1967. The ratios of these short-lived isotopes to strontium-90 were determined as accurately as possible. The data indicate that the debris from the Chinese nuclear explosion was injected primarily into the stratosphere.
1967年6月下旬至8月期间，在阿肯色州费耶特维尔采集的一系列雨水样本中，发现了碘 - 131、钡 - 140和锶 - 89的低活度。尽可能精确地测定了这些短寿命同位素与锶 - 90的比率。数据表明，中国核爆炸产生的碎片主要注入了平流层。
