ANALISIS PERUBAHAN WAKTU PARUH PADA NUCLEAR SPENT FUEL AKIBAT BOUND STATE BETA DECAY

EKO GALIH PRADIKTA, Prof. Dr. Pramudita Anggraita

2014 | Skripsi | TEKNIK NUKLIR

Penelitian perubahan waktu paruh (T 1/2) terhadap peluruh radiasi beta ( ) pada nuclear spent fuel (NSF) akibat peluruhan bound state beta decay ( ) telah dilakukan beserta persentase fraksi nuklida dan persentase dosis radiasi setiap peluruh dalam proses tersebut. Analisis perhitungan T1/2 dilakukan secara sistematik yang di evaluasi pada stellar environment, sedangkan untuk perhitungan persentase fraksi nuklida dan persentase dosis radiasi dilakukan dengan mengolah data hasil simulasi program SRAC dengan modul COREBN untuk reaktor PWR buatan Westinghouse & Mitsubishi dan data fission yield untuk uranium-235 dan uranium-238. Hasil yang diperoleh menunjukan bahwa peluruhan hanya efektif terhadap samarium-151 dengan percepatan T1/2 sebesar 93,19 % yaitu dari T1/2 = 90 tahun menjadi T1/2 = 6,131 tahun, sedangkan untuk persentase massa dan persentase dosis radiasi samarium-151 secara berturut – turut adalah 0,016917369 % dan 0,000332427 %.

The research of half-life shift (T 1/2) of beta radiation ( ) emitter on Nuclear spent fuel (NSF) as the result of bound state beta decay ( ) had been conducted along with nuclide fraction percentage and radiation dose percentage for every emitter in the process. The analytical calculation of T1/2 was conducted systematically and evaluated on stellar environment, while for the calculation on nuclide fraction percentage and radiation dose percentage was conducted by processing the resulting data from simulation of program SRAC with COREBN module for PWR reactor made by Westinghouse & Mitsubishi and fission yield data for uranium-235 and uranium-238. The result of this research indicates that the is only effective to samarium-151 with T1/2 acceleration of 93.19 % from T1/2 = 90 years becomes T1/2 = 6.131 years, while for nuclide fraction percentage and radiation dose percentage of samarium-151 radiation respectively are 0.016917369 % and 0.000332427 %.

Kata Kunci : T 1/2, NSF, , , sistematik, stellar environment, SRAC, COREBN, PWR, fission yield.