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PENINGKATAN SISTEM PROTEKSI RADIASI KAWASAN NUKLIR SERPONG Syahrir Syahrir; Lucia Kwin Pudjiastuti; Untara Untara; Sri Widayati
Buletin Limbah Vol 13, No 2 (2009): Tahun 2009
Publisher : Buletin Limbah

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PENINGKATAN SISTEM PROTEKSI RADIASI KAWASAN NUKLIR SERPONG. Review proteksi radiasi di Kawasan Nuklir Serpong oleh Misi Ahli IAEA (International Atomic Energy Agency) pada akhir tahun 2006 digunakan untuk meningkatkan program proteksi radiasi fasilitas nuklir kawasan. Misi Ahli mereview dokumen, mengunjungi fasilitas dengan pengamatan dan diskusi teknis. Review menghasilkan sejumlah temuan dan rekomendasi baik untuk masing-masing fasilitas maupun berlaku untuk kawasan. Review di antaranya merekomendasikan pembentukan komite proteksi radiasi, standarisasi aturan proteksi radiasi antar instalasi di kawasan nuklir Serpong, penerapan nilai batas dosis internasional terkini, penerapan dose constraint, sasaran ALARA (as low as reasonably achievable) dan batas buangan (discharge limits). Sebagai tindak lanjut dilakukan koordinasi dengan bidang keselamatan sekawasan Serpong dan diinventaris operasional proteksi radiasi antar instalasi di kawasan nuklir Serpong. Sementara Komite Proteksi Radiasi tidak dapat dibentuk, kerjasama antar fasilitas tetap diteruskan untuk menindaklanjuti temuan dan rekomendasi yang dianggap penting untuk meningkatkan program proteksi radiasi fasilitas. Dari kerjasama dilaksanakan beberapa tindak lanjut yang disepakati bersama maupun yang hanya dilaksanakan oleh fasilitas terkait. Pada akhir November 2008 Misi Ahli IAEA kedua untuk mengevaluasi tindak lanjut temuan dan pelaksanaan rekomendasi 2006 dilaksanakan. Misi ini memperkuat rekomendasi sebelumnya agar dibentuk suatu Central Authority dalam mengkoordinasikan program proteksi radiasi kawasan. Misi Ahli juga prihatin (concerned) dengan masih adanya paparan berlebih ada pada pekerja dan mendesak usaha nyata penanggulangannya. Selain temuan dan rekomendasi, Misi juga menganjurkan tahapan untuk meningkatkan program proteksi radiasi yang terpadu untuk fasilitas di kawasan nuklir Serpong. Central Authority telah disetujui pimpinan untuk dibentuk dengan usulan nama Komisi Proteksi Radiasi Kawasan Nuklir Serpong dengan tugas membuat standar proteksi radiasi sekaligus mengawasi pelaksanaannya di fasilitas maupun kawasan. IMPROVING RADIATION PROTECTION SYSTEM FOR SERPONG NUCLEAR ESTABLISH¬MENT The Review of radiation protection at Serpong Nuclear Center conducted by Expert Mission of IAEA (International Atomic Energy Agency) in 2006 has been used to improve radiation protection program by nuclear facilities in the area. The mission reviewed some documents, visited facilities with observation and discussion. The Review results findings and recommendations for the facilities and the site. It recommended a radiation protection committee that develop a radiation protection system for all facilities in Serpong site and enforce it. It also recommended to implement recent international dose limitations, dose constraint, discharge levels and ALARA objectives. All the relevant representative facilities discussed the the follow-up of the findings and the recommendations. The committee can not be fulfilled but the representative agreed to take action on the recommendations and findings as they are important to improve facility radiation protection programs. On November 2008 the second expert mission for Review of Radiation Protection by IAEA was conducted. The mission was stressing the need of a Central Authority in radiation protection for Serpong. It also concerned with overdose to some workers and urged real effort to cope with. Some findings to some facilities and recommendations are given on the mission report. The report also suggests a basic schedule in steps to improve a unified radiation protection program for facilities in Serpong Nuclear Establishment. Chairman of BATAN (National Nuclear Energy agency) agreed to form the Central Authority with the proposed name as Radiation Protection Commission for Serpong Nuclear Establishment. The Commission is asssigned to establish a radiation protection standard for Serpong site and control its implementation.
PENGARUH VAC OFF GAS TERHADAP TINGKAT KONTAMINASI UDARA PADA INSTALASI PENGOLAHAN LIMBAH RADIOAKTIF DI PTLR BATAN SERPONG Budiyono Budiyono; Untara Untara; Gatot Sumartono
Buletin Limbah Vol 13, No 1 (2009): Tahun 2009
Publisher : Buletin Limbah

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PENGARUH VAC OFF GAS TERHADAP TINGKAT KONTAMINASI UDARA PADA INSTALASI PENGOLAHAN LIMBAH RADIOAKTIF DI PTLR BATAN SERPONG. Telah dilakukan pengukuran tingkat kontaminasi udara untuk mengetahui distribusinya dalam gedung IPLR. Sampel diambil di zona 1, zona 2 dan zona 3 dengan variasi waktu pada kondisi VAC-Off Gas hidup dan mati. Hasil pencuplikan udara diukur dengan pencacah  /  aktivitas rendah. Dari hasil penelitian ini diketahui bahwa semakin lama VAC dalam kondisi mati, semakin tinggi konsentrasi kontaminan di dalam gedung. Untuk kondisi VAC mati 64 jam (libur normal), kontaminasi udara tertinggi mencapai 3,6 kali nilai batas ambang. Sedangkan untuk kasus 88 jam gedung tanpa operasi VAC, konsentrasi kontaminan mencapai 5 kali nilai batas yang diijinkan. Kontaminasi udara turun menjadi di bawah nilai ambang, setelah VAC hidup selama 0,8 jam. Sedangkan nilai konsentrasi kontaminan sama dengan udara luar dicapai setelah VAC dioperasikan selama 1 jam. INFLUENCE OF VAC OFF GAS TO AIR CONTAMINATION IN RADIOACTIVE WASTE INSTALATION AT PTLR BATAN SERPONG. Measurement of air contamination has been conducted to evaluate its distribution in the building of radioactive waste treatment installation. Samples were taken in various time from zone-1, zone-2, and zone-3 of the building when VAC off gas system was on and off. The samples were taken from air in the building and measured using  /  activity counter. The research result show that as VAC off gas turned off then gas concentration will be increasing. When VAC was not operated in 64 hours (weekend holidays) air contamination reached 3,6 time higher than its permission limit. More over, in 88 hours without VAC operation gas concentration reached 5 times higher than permitted limit. Air contamination reduced to below permitted limit after 0,8 hour of VAC operation and it reached same level with gas concentration in external air after 1 hour of VAC operation.
Co-Authors Budiyono Budiyono Gatot Sumartono Lucia Kwin Pudjiastuti Sri Widayati Syahrir Syahrir