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All Journal Jurnal Radioisotop dan Radiofarmaka Jurnal Kimia dan Kemasan Makara Journal of Technology Jurnal Kefarmasian Indonesia
Rohadi Awaludin
Pusat Teknologi Radioisotop dan Radiofarmaka Gd. 11 Puspiptek, Serpong, 15314
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology

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Journal : Makara Journal of Technology

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Neutron Irradiation on SS316 Material for Radioactive Endovascular Stent Production Awaludin, Rohadi; Abidin, Abidin; Sriyono, Sriyono
Makara Journal of Technology Vol. 12, No. 2
Publisher : UI Scholars Hub

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Neutron Irradiation on SS316 Material for Radioactive Endovascular Stent Production. It was reported that restenosis could be prevented by radioactive endovascular stent. SS316 material of endovascular stent has been irradiated at pneumatic rabbit system of G.A. Siwabessy reactor for 5 minutes for producing radioactive stent by neutron activation. After 10 days of decay, the irradiated SS316 was measured by gamma spectrometer. The radioisotopes of 51Cr, 59Fe and 60Co were detected in the irradiated SS316 with radioactivity of 5990, 107 and 109 Bq/mg respectively. The Calculation results showed that radioisotopes of 51Cr, 59Fe and 55Fe were produced by neutron activation. The radioactivity of 51Cr, 59Fe and 55Fe were 6051, 70 and 110 Bq/mg respectively. In the irradiated materials, the 55Fe was not detected because the radioisotope emitted radiation with very low energy (5.9 keV). It is considered that radioisotope of 60Co was produced from cobalt impurity in the SS316.
Preparation of Radioactive Gold Nanoparticle by Neutron Activation Awaludin, Rohadi
Makara Journal of Technology Vol. 13, No. 1
Publisher : UI Scholars Hub

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Preparation of Radioactive Gold Nanoparticle by Neutron Activation. It was reported that gold nanoparticle could be used for cancer therapy using thermal effect. It is possible to kill cancer cells using radiation of radioisotope. Study on preparation of radioactive gold by neutron activation at central irradiation position (CIP) of G.A. Siwabessy reactor with neutron flux 1.26 x 1014 neutron s-1cm-2 has been carried out. It was revealed that a radioisotop of gold (198Au) was produced by neutron activation from natural gold. Calculation results showed that 198Au with radioactivity of 0.366 Bq, 2.93 Bq, 9.90 Bq and 23.4 Bq was produced for nanoparticle with diameter of 100, 200, 300 and 400 nm by neutron irradiation for 12 days. The saturation factor was 96.5%. After 10 days of decay, the radioactivity was 0.027 Bq, 0.223 Bq, 0.753 Bq and 1.78 Bq in nanoparticle with diameter of 100, 200, 300 and 400 nm. The radionuclide impurities were 108Ag, 110mAg, 64Cu, 66Cu, 205Pb and 209Pb with the total radioactivity was 4.31 x 10-5 % of the total radioactivity of 198Au at the end of irradiation.
Co-Authors . Sulaeman A.A. Ketut Agung Cahyawan W Abdul Mutalib Abdul Muthalib Abidin Abidin Adang Hardi Gunawan Anung Pujianto Anung Pujiyanto, Daya Agung Sarwono Diandono Kuntjoro Yoga Endang Sarmini Herlina Herlina Hotman Lubis Ibon Suparman Indra Saptiama Karyadi Karyadi Mochamad Subechi, Sriyono Sriyono Sulaiman Sulaiman Triani Widyaningrum Yunilda Yunilda