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Sonsuz Enerjiye Kavuşma Yolunda Zamanı Başarı! - HAKANSEYHAN
Bilim adamları, tarihte ilk kez füzyon reaksiyonuna harcanan enerjiden daha çok enerji elde etti. Gelin, başarının detaylarına bakalım.
ABD Birleşik Devletleri, insanlık için zamanı bir başarıyı duyurdu. Başarı, bilim dünyasının uzun süredir ardında koştuğu, teoride sınırsız enerji sunan füzyon reaksiyonu alanında oldu. Gelin, paylaşılan detayları detaylıca anlatalım.
Zamanı başarı, Kaliforniya Üniversitesi tarafınca 1952 senesinde kurulan Lawrence Livermore Ulusal Laboratuvarı’nda elde edildi. Tarihte ilk kez füzyon reaksiyonu için harcanan enerjiden daha çok enerji elde edildi.
Peki, bu başarı nasıl elde edildi? Bilim adamları tam olarak ne yapmış oldu?
Bilim adamları, zamanı başarıyı elde etmek için çoğu zaman kullanılan füzyon reaksiyonu şekillerinden değişik, “Atalet Hapsi Füzyonu ” adlı bir yönteme yöneldi. Bu süreçte hidrojen plazması, dünyanın en büyük lazeriyle ‘bombalandı’.
Süreç, adım adım basitçe şu şekilde gerçekleşti:
Lazer ışınları, en fazla 192 tane olacak şekilde reaktör içindeki boşluğa ateşlendi. Böylelikle reaktörün içi ısındı, oldukça yüksek sıcaklıkta plazma oluştu. Lazerlerle oluşan X-ışını, hidrojenin döteryum ve trityum izotoplarından oluşan katman yüzeyinden boşluk içinde yansıdı. Reaktör içindeki boşluğun ortasında bulunan yakıt kapsülü patlayarak füzyon reaksiyonu için lüzumlu koşulları sağlamış oldu. Isı, yakıtta yeterince süratli yayılarak enerji verimi elde edildi. Yukarıdaki aşamaların başarıyla tamamlanmasıyla füzyon reaksiyonu, toplam 2,5 megajul enerji üretmeyi başardı. Tepki için lazerler ile harcanan enerji ise 2,1 megajul idi.
Bu güç o denli fazlaydı ki ekipmanlar bile ziyan oldu: Financial Times’a konuşan ve çalışmada yer edinen iki isim, elde edilmiş enerjinin bu kadar yüksek olmasını beklemediklerini açıkladı. Hatta enerji, o denli yüksek seviyedeydi ki reaksiyonun analizi için kullanılan bazı ekipmanların zarar görmesine yol açtı.
Bu başarı neden mühim? İnsanlık neden füzyon enerjisinin peşinden koşuyor?
Bilim adamları, 1950’i senelerden beri Güneş’in de enerji deposu olan füzyon reaksiyonunu Dünya’da oluşturmak için emekler yapıyor. Fakat bugüne dek hiçbir çalışmada kullanılan enerjiden daha çok enerji elde edilememişti.
Bugün duyurulan başarı, insanlığın füzyon enerjisine geçişi için de büyük bir mihenk taşı olacak. Füzyon enerjisi yardımıyla hiçbir karbon emisyonu üretmeden yada nükleer santrallerde oluşan nükleer atık olmadan enerji üretilebilecek.
Doğal pek oldukça bilim insanına bakılırsa füzyon enerjisine ‘füzyon enerji santralleri’ ile geçişimize halen on seneler kadar uzun bir süre var. Fakat bu aşamada değişen teknolojinin gelişim hızı da büyük bir ehemmiyet taşıyor. Doğrusu geçişimiz, tahminlerden oldukça daha kısa sürede gerçekleşebilir.
Zamanı başarının elde edilmiş olduğu laboratuvar hakkında mühim informasyon: Başarının elde edilmiş olduğu ulusal laboratuvar, 3,5 milyar dolarlık harcama ile aslen nükleer silahlar geliştirmek suretiyle kurulmuştu. Fakat laboratuvar, günümüzde bilhassa füzyon enerjisi araştırmaları için kullanılıyor.
Beyaz Saray Bilim Ofisi ve Teknoloji Politikası Direktörü’nden açıklama
Araştırmayı ve projeyi yakından takip eden Beyaz Saray Bilim Ofisi ve Teknoloji Politikası Direktörü Dr. Arati Prabhakar, projenin başarıya ulaşmasının insanlık için oldukça mühim bir adım bulunduğunu belirtti. Prabhakar ek olarak projenin “Güneş ve öteki yıldızlardaki füzyon patlamalarına eşdeğer oranda enerji üretmek için ” devam ettirileceğini ve atılacak adımlara daha oldukça dikkat edileceğiniz açıkladı.
NNSA Savunma Programları Yöneticisi’nden nükleer silahlarla ilgili açıklama
NNSA (Ulusal Nükleer Güvenlik İdaresi) Savunma Programları Yöneticisi Dr. Marvin “Marv” Adams, yapmış olduğu açıklamada bu başarının temiz enerjiye ek olarak enerji silahları ve nükleer tabanca üretiminde de kullanılabileceğini açıkladı. Büyük çaplı nükleer silahlara ek olarak filmlerde gördüğümüz şeklinde enerji bazlı taşınabilir silahlar da üretmek istediklerini belirten Adams, hem füzyon projesindeki hem de enerji silahları üstünde çalışan ekipleri büyüteceklerini açıkladı.
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