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Ian Hutcheon tests materials for evidence of illegal nuclear activity

EarthSky

Physicist Ian Hutcheon, of Lawrence Livermore National Laboratory, is what you might call a nuclear detective. Hutcheon's job is to look for evidence of the production of highly enriched uranium or plutonium, the essential components of nuclear weapons.

勞倫斯利福摩爾國(guó)家實(shí)驗(yàn)室的物理學(xué)家伊恩·哈欽是你所認(rèn)為的核偵探。他的工作是找到生產(chǎn)高濃縮鈾或钚的證據(jù)，這兩種成分是核武器必不可少的。

Ian Hutcheon: Intercepted samples… come in all sizes and shapes, very much in the same form as if you go down to your local police station and look at the types of evidence that are collected at crime scenes.

伊恩·哈欽：這些被截獲樣本尺寸和形狀各異，類似于你在警察局看到的在犯罪現(xiàn)場(chǎng)收集的樣本。

Hutcheon receives samples from nuclear facilities throughout the world. He then tests them for evidence of illegal materials like highly enriched uranium. It's difficult to differentiate legal material from illegal material, Hutcheon said, because uranium is everywhere.

全球核設(shè)施的樣本都送到哈欽這里，然后他測(cè)試這些樣本是否含非法成分，如高濃縮鈾。哈欽說(shuō)鑒別合法成分和非法成分是不易的，因?yàn)殁欕S處可見(jiàn)。

Ian Hutcheon: If you go out on the beach and pick up a handful of sand it contains about 4 parts per million of uranium.

伊恩·哈欽：如果你在沙灘上隨便抓一把沙，其中大約會(huì)含百萬(wàn)分之四的鈾成分。

Nuclear investigative testing is used by agencies such as the United Nations to monitor countries' nuclear activities such as the production of enriched uranium and their compliance with international agreements on weapons of mass destruction.

核偵查實(shí)驗(yàn)通常會(huì)由向聯(lián)合國(guó)這樣的組織完成，監(jiān)控各國(guó)核動(dòng)態(tài)，如是否生產(chǎn)高濃縮鈾，是否遵守有關(guān)大規(guī)模殺傷性武器的國(guó)際條約。

Ian Hutcheon: Our charge is to measure the properties of the material and to demonstrate that we can do this with high precision, and that we can, that the data we can collect would stand up, for example, in a court of law.

伊恩·哈欽：我們職責(zé)測(cè)量這些物質(zhì)的屬性，并證明我們的測(cè)試是非常精確的，我們收集的數(shù)據(jù)能在法庭在站得住腳。

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