| NIM | K1C016024 |
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| Namamhs | OKTIANA EKA MAHWATI |
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| Judul Artikel | Perancangan Kolimator Di Beam Port Tembus Reaktor Kartini Untuk Boron Neutron Capture Therapy (BNCT) Menggunakan PHITS |
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| Abstrak (Bhs. Indonesia) | Telah dilakukan penelitian perancangan kolimator pada beam port tembus reaktor kartini. Penelitian bertujuan untuk mendapatkan desain kolimator pada beam port tembus sebagai sumber neutron BNCT dan mengetahui karakteristik output neutron serta distribusi neutron dan gamma pada kolimator tersebut. Perancangan kolimator menggunakan pemprograman Particle and Heavy Ion Transport Code System (PHITS). Perancangan dilakukan dengan metode bertahap dengan membuat listing program PHITS untuk mendapatkan jenis dan ketebalan komponen-komponen kolimator yang optimal. Hasil penelitian diperoleh konfigurasi dan komposisi kolimator yang optimal tersusun atas dinding kolimator Ni dengan tebal 1,3 cm, Al dengan tebal 25 cm sebagai moderator, LiF dengan tebal 45 cm sebagai filter neutron cepat, Boron dengan tebal 3 cm sebagai filter neutron termal serta Pb dengan tebal 16 cm sebagai perisai gamma. Distribusi neutron epitermal mulai terbentuk pada komponen moderator sampai melewati filter dan aperture dengan intensitas mendekati 1010 n/cm2.s. Berdasarkan analisis distribusi neutron pada kolimator ditemukan fluks neutron cepat, neutron termal dan gamma masih tinggi. Hasil perancangan kolimator menghasilkan fluks neutron dengan karakteristik fluks neutron epitermal 5,97 x 1010 n/cm2.s, laju dosis gamma per fluks neutron epitermal 7,69 x 10-11 Gy.cm2/n , fluks neutron epitermal dan fluks neutron termal 1,85, serta fluks neutron epitermal dan fluks neutron cepat 0,35. Hasil perancangan mampu memoderasi neutron cepat menjadi neutron epitermal. Berdasarkan hasil simulasi spektrum diperoleh 1 parameter yang sesuai standar IAEA. |
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| Abtrak (Bhs. Inggris) | The design of collimator research for piercing beam port of Kartini Reactor has been carried out. The aims of this research are to obtain the design of collimator for piercing beam port as sources of neutrons for BNCT and to determine the neutrons output characteristics and the distribution of neutrons and gamma in the collimator. The collimator design was done using Particle and Heavy Ion Transport Code System (PHITS) program. The design is carried out through several step, first of all, create the listing of PHITS program to obtain the optimal type and thickness of the collimator components. The results showed that the optimal configuration and composition of the collimator consists 1.3 cm thickness of Ni as collimator wall, 25 cm thickness of Al moderator, 45 cm of LiF as fast neutron filter, 3 cm thickness of Boron as a thermal neutron filter and 16 cm thickness of Pb as a gamma shield. The epithermal neutron distribution begins to form in the moderator component until it passes through the filter and aperture with an intensity approaching 1010 n /cm2.s. Based on analysis of neutrons distribution in the collimator, it was found that the fast neutrons flux, thermal neutrons, and gamma is still high. The design of collimator produced the neutron flux with 5.97 x 1010 n/cm2.s epithermal neutron flux characteristic, 7.69x10-11 Gy.cm2/n of gamma dose rate per epithermal neutron flux, 1.85 of epithermal neutron flux and thermal neutron flux, and 0.35 of epithermal neutron flux and fast neutron flux. The results of design was able to moderate fast neutrons to epithermal neutrons. Based on the results of the spectrum simulation, one parameter is obtained according to the IAEA standards. |
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| Kata kunci | Kolimator, beam port, reaktor kartini, BNCT |
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| Pembimbing 1 | Dr. Bilalodin, M.Si. |
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| Pembimbing 2 | Aris Haryadi, S.Si., M.Si. |
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| Pembimbing 3 | |
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| Tahun | 2021 |
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| Jumlah Halaman | 8 |
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| Tgl. Entri | 2021-01-20 14:10:16.428395 |
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