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Wilhelm Röntgen hayatı ve buluşları nelerdir

william-rontgen-260x168Modern fiziğin en önemli buluş­larından biri olan X ışınlarını Wil­helm Conrad Röntgen (1845-1923) adında bir Al­man fizikçisi bulmuştur. Bu  ışınlara Röntgen ışınları de­nir.Wihelm Röntgen’in X Işınlarını Kullanarak Çektiği İlk Görüntü hangisidir? Karısının Elidir

Wilhelm Röntgen, Almanya’nın Prusya kesiminde dünyaya geldi. İs­viçre’de Zürich Üniversitesi’nde öğre­nim gördü. Würzburg Üniversitesinde fizik profesörü oldu. Elektrik-üze­rinde deneyler yaparken, kullandığı deney tüpünün yanında duran bar­yum bileşiği kaplı bir kâğıt üzerinde beliren parıltılar dikkatini çekti. Bu parıltıların neden ileri gelebileceğini merak ederek incelemeğe girişti. Söz konu­su parıltıların, deney tüpünden çıkan ve göz­le görülmeyen ışınlardan ileri geldi­ği sonucuna vardı. Bu ışınların ne olduğunu bilmediği için onlara bilin­meyen ışınlar anlamına  X ışınları  adını verdi.

[pro-player width=’530′ height=’350′ type=’video’ image=’http://www.aymoli.com/wp-content/uploads/william-rontgen-260×168.jpg’]http://www.youtube.com/watch?v=ONsPE0hNid8&feature=related[/pro-player]X ışını elde etmek için çok yüksek voltajlı akıma ihtiyaç vardır. Sanayi­de kullanılan röntgen ışınları 2 000 000 voltluk akımla sağlanır ve bu ışın­lara  sert denir. Daha düşük voltaj­la (sözgelimi 100 000 volt) elde edilen X ışınlarıysa  yumuşaktır; bunlar deriden ve etten geçtikleri halde ke­miklerden geçemez, bu nedenle tıpta kullanılabilir.

Röntgen ışınlan tıpta, özellikle  radyoskopi  ve  radyografi yap­mak için kullanılır. Bu yoldan içorganlara bakılabildiği gibi, bu organ­ların resimleri de çekilebilir. Rönt­gen aygıtlarının kullanılması uzman­lık ve dikkat ister, çünkü bu ışınlar canlı dokular için çok tehlikelidir, ancak kısa bir süre vücuda verilebi­lir. Ama röntgen ışınlarının bu nite­liğinden yararlanılarak kanser hücre­lerinin öldürülmesi için röntgen te­davisi de yapılabilir.

Dalga boyu nedir:

 X ışınları da radyo ışınları gibi gözle görülemeyen elektromagnetik ışınlardandır. Ama bunların dalga böyu son derece kısadır (ışığın dalga boyundan 5 000 defa daha kısa). Dalga boyunun çok kısalığfnedeniyle X ışınlarının geçiciliği çok yüksektir. Işık camdan nasıl geçerse, X ışınları da insan vücudundan, bir kısım madenlerden, tahtadan v.b. öylece geçer.

   

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