Akkuyu Nükleer Reaktörlerinde Kullanılabilecek olan Bazı Kontrol Çubuğu Tiplerinin Radyasyon Koruma Parametrelerinin İncelenmesi

Öz

Kontrol çubukları, nükleer reaktörlerde çekirdekte oluşacak fisyonun kontrol edilmesi için kullanılır. Farklı reaktör tasarımlarında çeşitli enerjilerde bulunabilen nötronlar nedeniyle farklı kontrol çubuğu malzemeleri kullanmalıdır. Nötronları absorbe edebilen B4C, ZrB2, TiB2 veya HfB2 gibi kimyasal bileşiklerden yapılabilen bu malzemeler, çeşitli enerjilerdeki nötronlar için farklı absorpsiyon özelliklerine sahiptir. Bu çalışmada Akkuyu Nükleer Reaktörlerde kullanılabilecek kontrol çubukları araştırılmıştır. Bu kontrol çubuklarının yapısında B4C, ZrB2, TiB2 veya HfB2 gibi kimyasal bileşiklerin bulunabileceği ve lineer ve kütle zayıflama katsayıları (LAC, MAC), yarım ve onuncu değer kalınlıkları (HVL, TVL) ve ortalama serbest yol (MFP), Atom numarası, elektron yoğunluğu (Zeff, Neff) ve etkin iletkenlik (Ceff) enerji parametreleri Phy-X yazılımı kullanılarak teorik olarak 1 keV ile 20 MeV arasında hesaplanmıştır.

Anahtar Kelimeler

• control rod
• B4C
• ZrB2
• TiB2
• HfB2
• Phy-X

Investigation of Radiation Protection Parameters of Some Control Rod Types that Can Be Used in Akkuyu Nuclear Reactors

Abstract

Control rods are used in nuclear reactors to control fission in the core. Different reactor designs must use different control rod materials because of the neutrons that can be found at various energies. These materials, which can be made of chemical compounds such as B4C, ZrB2, TiB2 or HfB2 that can absorb neutrons, have different absorption properties for neutrons of various energies. In this study, control rods that can be used in Akkuyu Nuclear Reactors were investigated. It has been taken into account that chemical compounds such as B4C, ZrB2, TiB2 or HfB2 may be present in the structure of these control rods, and the linear and mass attenuation coefficients (LAC, MAC), half and tenth value thicknesses (HVL, TVL) and mean free path (MFP), The atomic number, electron density (Zeff, Neff) and effective conductivity (Ceff) energy parameters have been calculated theoretically between 1 keV and 20 MeV using Phy-X software.

Keywords

• control rod
• B4C
• ZrB2
• TiB2
• HfB2
• Phy-X

Kaynakça

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