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INVESTIGATION OF IRON TOTAL CROSS-SECTIONS IN HIGH ENERGY THROUGH BROOMSTICK CALCULATION FOR NEW VERSION EVALUATED NUCLEAR DATA FILES

Suwoto, AW and Hery Adrial, HA and Zuhair, Z (2016) INVESTIGATION OF IRON TOTAL CROSS-SECTIONS IN HIGH ENERGY THROUGH BROOMSTICK CALCULATION FOR NEW VERSION EVALUATED NUCLEAR DATA FILES. In: Prosiding Seminar Nasional Teknologi Energi Nuklir 2016, 4-5 Agustus 2016, BATAM.

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Abstract

ABSTRACT INVESTIGATION OF IRON TOTAL CROSS-SECTIONS IN HIGH ENERGY THROUGH BROOMSTICK CALCULATION FOR NEW VERSION EVALUATED NUCLEAR DATA FILES. The use of iron material often found in the core structure and shielding of nuclear reactors. The investigation of neutron cross-sections for iron contained in new evaluated nuclear data files such as JENDL-4, ENDF/B-VII, JEFF-3.1 and RUFOND-2010 files have been performed through broomstick calculation. Main purpose of this research is to clarify the applicability of iron total crosssections in high neutron energy contained on new several nuclear data files. The broomstick calculation for iron have been analysed based on ORNL-Broomstick Experiment made by Straker. The broomstick calculation method was performed into the following two parts: (1) to determine a transmitted uncollided neutron spectrum, (2) to fold the value of calculated uncollided neutron spectrum from the preceding step with the resolution function of the NE-213 spectrometer system that actually used in experiment. For investigation and data analysis, the calculation analyses with several new evaluated nuclear data files have also been carried out. The calculation results by using JENDL-4 file and JEFF-3.1 files show in good agreement with the experimental data, compared with the ENDF/B-VII and RUSFOND-2010 files. Particularly, JENDL-4 file gives best results on C/E (1.0060) than ENDF/B-VII (0.9081), JEFF-3.1 (0.9860) and RUSFOND-2010 (1.0696) files on 20.32 cm iron thickness samples. Whereas, for 30.48 cm iron thickness samples, the C/E profiles have same systematic tendency, despite of RUSFOND-2010 data files give the better value of C/E, but the standard deviation value is little bit higher than JENDL-4 or JEFF-3.1 files. From overall results, it has been concluded that the total cross-sections of iron contained in new evaluated nuclear data file of JENDL-4 is very applicable especially for shielding calculation analyses. Meanwhile, from the broomstick calculation result of JEFF-3.1 file is becoming close to JENDL-4 file. Keywords: broomstick calculation, iron, JENDL-4, ENDF/B-VII, JEFF-3.1, RUSFOND-2010 ABSTRAK INVESTIGASI TAMPANG LINTANG TOTAL BESI PADA ENERGI TINGGI MELALUI PERHITUNGAN BROOMSTICK UNTUK FILE DATA NUKLIR TERBARU. Material besi banyak digunakan dalam material struktur dan perisai radiasi reakrtor nuklir. Telah dilakukan perhitungan broomstick untuk investigasi tampang lintang total neutron untuk material besi pada file data nuklir terevaluasi versi terbaru seperti JENDL-4, ENDF/B-VII, JEFF-3.1 dan RUSFOND-2010. Tujuan penelitian ini adalah untuk menyelidiki tampang lintang total besi untuk energi neutron tinggi pada pustaka data nuklir terbaru. Perhitungan broomstick untuk material besi ini didasarkan pada percobaan broomstick yang telah dilakukan oleh Straker. Metode perhitungan broomstick dilakukan dengan dua bagian yaitu (1) menentukan spektrum neutron uncollided yang ditransmisikan dan (2) dari nilai spektrum neutron uncollided yang diperoleh sebelumnya dengan memperhitungkan fungsi resolusi sistem spektrometer NE-213 yang digunakan dalam eksperimen Untuk analisis dan insvestigasi, analisis perhitungan melibatkan beberapa file data nuklir terbaru. Hasil perhitungan broomstick menggunakan file data terbaru JENDL-4 dan JEFF-3.1 menunjukkan kesesuaian yang baik dengan hasil eksperimen, dibandingkan menggunakan ENDF/B-VII dan RUSFOND-2010 files. Khususnya, hasil perhitungan boomstick untuk ketebalan sample besi 20.32 cm, file JENDL-4 memberikan hasil perhitungan C/E terbaik (1.0060) dibandingkan dengan ENDF/B-VII ((0.9081), JEFF-3.1 (0.9860) dan RUSFOND-2010 (1.0696). Sedangkan untuk ketebalan sample besi 30.48cm memberikan tedensi profil yang sama, meskipun file RUSFOND- 2010 memberikan nilai C/E yang baik, tetapi standard deviasinya sedikit lebih tinggi dibanding file JENDL-4 dan JEFF-3.1. Secara keseluruhan hasil perhitungan memberikan kesimpulan bahwa file terbaru JENDL-4 sangat baik untuk analisis perhitungan perisai radiasi. Sementara itu file JEFF- 3.1 cenderung mendekati hasil JENDL-4 file. Kata kunci: perhitungan broomstick, besi, JENDL-4, ENDF/B-VII, JEFF-3.1, RUSFOND-2010

Item Type: Conference or Workshop Item (Paper)
Subjects: Keselamatan dan Keamanan Nuklir
Divisions: Pusat Teknologi dan Keselamatan Reaktor Nuklir
Depositing User: USER PTKRN BATAN
Date Deposited: 21 May 2018 06:16
Last Modified: 21 May 2018 06:16
URI: http://repo-nkm.batan.go.id/id/eprint/2172

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