輻射數據弄虛作假？

香港機場量度輻射示範 輻射數據弄虛作假？ Faking The Radiation Data? Friday, 18 March 2011 11:11 Translation by Autumnson Blog Hello, I just wanted to point out something about the footage I have seen with regard to monitoring the public in the area of the nuclear disaster in Japan. I only mention this because to the best of my knowledge it has not been stated elsewhere.
我衹是想指出一些東西，關於我已經看到的錄像有關日本核災難地區的公眾監測。我只是提這一點，因為以我所知最好的，還沒有在別處指出。
A number of years ago I used to work in the nuclear industry measuring radiation levels. I am wondering why the monitors have plastic bags over their radiation detectors whilst measuring radiation levels. It is well known that different radioactive particles have different abilities to penetrate materials. The three main types are Alpha, Beta and Gamma. Gamma is the most penetrating followed by Beta and then Alpha. Alpha is unable to penetrate even a piece of paper, so I doubt it will be able to penetrate a plastic bag either, unless the bag is made from a "special material."
數年前我曾在核工業工作，測量輻射水平。我在奇怪當顯示器測量輻射水平的時候，為什麼有塑料袋在它們的輻射探測器上。眾所周知不同的放射性粒子有不同的能力穿透材料，三種主要類型是α、β和γ。 Gamma是最易穿過的，其次是Beta，然後才是Alpha， Alpha是無法穿透即使是一張紙，所以我懷疑它將能夠穿透任何一個塑料袋，除非袋是由一“特殊材料“製造的。
My point is that using a covering device over the detector will mean that people will not be aware of high levels of Alpha contamination and could be used as a way of giving the public false readings especially if there is alot of Alpha contamination about. Although Alpha radiation is the least penetrating it is also the MOST ionising radiation and so is more serious from a health point of view. If people inhale or are otherwise contaminated with an Alpha emitting material they run a much higher risk of developing cancers or other health problems.
我的觀點是，在探測器上使用一件覆蓋設備將意味著，人們將不覺察高水平的的Alpha污染，和可被用作一種方式給予公眾虛假的讀數，特別是如果有很多有關Alpha的污染。雖然Alpha輻射是最少滲透的，但它亦是最電離的輻射和因此是更嚴重的(從健康的角度來看)。如果人們吸入或相反被Alpha排放的物質所污染，他們處於一更高得多的風險發展癌症或其它健康問題。
It would be necessary to consult an expert in Radiological Protection to get their views on this topic as they will be up to date on the use of modern instrumentation and techniques. Also how much Alpha emitting material is likely to be involved in the disaster. Personally I believe it will be quite alot.
將需要請教一位放射防護的專家來得到他們在此一主題的看法，因為他們將是使用最新的現代儀器和技術，而且阿爾法排放物質多少是可能涉及災難，我個人相信它將是不少的。

Thanks Malcolm

http://www.davidicke.com/headlines/46035-faking-the-radiation-data

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