位於美國愛達荷州的愛達荷國家實驗室於1952年開始了一項計劃,以研究固態錇及其化合物的化學及物理屬性。Burris B. Cunningham和Stanley Gerald Thompson(英語:Stanley G. Thompson)於1958年用8克的鈈-239作為目標體,在反應爐內對其進行持續6年的放射,最後首次製成了宏觀數量的錇元素(0.6微克)。[39][45]這是目前唯一一種可用來製造可稱量的錇的方法,且大部分實驗所用到的固態錇重量都不超過幾微克。[17][46]
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