Effective Atomic Number and Electron Density Determination of Some Amino Acids by Using Scattering Intensity Ratio of 59.54 keV Gamma Rays

Öz

In this study the specific atomic arguments have been determined for F-Glycine (C₂H₅O₂N), Alenine (L, D) (C₃H₇O₂N), Leucine (L, D) (C₆H₁₃O₂N), L-Proline (C₅H₉O₂N) amino acids. The calculation procedure of the experimental values of atomic parameters was carried out by using scattering intensity ratios of γ-rays. These γ-rays were obtained from 5 Ci ²⁴¹Am annular radioactive source.  In traditional studies, these arguments were determined by transmission technique. The scattered γ-rays were counted by using an HPGe semiconductor detector. Our detecting system was connected to a separate amplifier and an Accuspec card. Theoretical values of related atomic parameters for amino acid targets were calculated and cross checked with our experiential values. Our deliberated values are in good concordance with theoretical calculations.

Anahtar Kelimeler

• Amino Acids,Electron Density,Effective Atomic Number,Rayleigh to Compton Scattering Intensity Ratios

Effective Atomic Number and Electron Density Determination of Some Amino Acids by Using Scattering Intensity Ratio of 59.54 keV Gamma Rays

Öz

Bu çalışmada H, C, N ve O içeren F-Glycine (C₂H₅O₂N), Alenine (L, D) (C₃H₇O₂N), Leucine (L, D) (C₆H₁₃O₂N), L-Proline (C₅H₉O₂N) aminoasitlerinin etkin atom numarası ve elektron yoğunlukları belirlenmiştir. Diğer çalışmalardan farklı olarak, ilgili parametreler gamma ışınlarının saçılma şiddet oranları kullanılarak tespit edilmiştir. Geleneksel uygulamalarda soğurma tekniği kullanılarak tespitler yapılmaktadır. 5 Ci güce sahip ²⁴¹Am radyoaktif halka izotop kullanılarak gamma ışınları elde edilmiştir. 5 Ci ²⁴¹Am halka kaynaktan yayınlanan gamma ışınları hedeften saçılmıştır. Saçılan fotonlar HPGe yarıiletken dedektör kullanılarak sayılmıştır. Dedektör sistemine bağlı yükseltici ve Accuspec kartı bulunmaktadır. Teorik değerler, deneyler sonucunda elde edilen değerler ile karşılaştırılmıştır ve uyum içinde oldukları tespit edilmiştir.                           

      

                             

Anahtar Kelimeler

• Aminoasitler,Elektron Yoğunluğu,Etkin Atom Numarası,Rayleigh Saçılma Şiddetinin Compton Saçılma Şiddetine Oranı

Kaynakça

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