Calculation of Total Exposure Effective Dose to Member of the Public Due to Airbrone Radioactive Material Release by Nuclear Fuel In Case of Accident Involving Primary Circuit Coolant Leakage to Secondary Circuit at Bushehr Nuclear Power Plant (BNPP-1)

سال انتشار: 1385
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,247

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شناسه ملی سند علمی:

NFC01_005

تاریخ نمایه سازی: 4 آبان 1385

چکیده مقاله:

In this paper total Exposure effective dose caused by release of airborne radioactive material due to leakages with an equivalent diameter of 100 mm & more from the primary to the secondary Circuit is investigated. In this accident noble gases are released with a fraction of 98% into the containment’s atmosphere and from there with a volume fraction of 1% in to the neighboring environment . the radioactive doses are calculated by the AIRDOSE code. This program uses the Gaussian distribution model for contaminate dispersion. Hilsmeier-Gifford atmospheric dispersion parameters are used in this model . in addition a computer program named SIGHG for estimation of standard deviation in vertical & horizontall directions also a program for accident conditions was development Exposure’s of receptor from passage of Gamma rays radioactive cloud or the so called “air submersion & inhalation of radionuclides during this passage time are considered & also exposure from ground shine of radioactive material which deposited on the ground is considered as route’s of exposure. In this accident the maximum and minimum effective dose on the body, was calculated to accurse in West-South – West (WSW) and South – East (SE) sectors respectively. Dispersion coefficient of shore – time periods (urgent phase dose) is obtained from Hilsmeier – Gifford equations for an effective source height of 100m. the maximum & minimum . total Exposure effective dose received to member of the public is 5.1 & 3.8 m Sv in WSW sectors respectively. These values are in good agreement with result of DOZAM code [10]. The maximum concentration (x/O) is predicted to be 3.3e-5 sec/m3 & happen at a wind velocity of U=1m/s in the weather class A at a distance of 600m from the stack which is in good agreement with the amount of 3e-5sec/m3 reported in preliminary report on safety assurance (PSAR) for BNPP[1.10]

کلیدواژه ها:

Dose assessment - Exposure - Loss of Coolant Accident ، Total Effective Dose Equivalent (TEDE)-Release of Airborne Radioactive Material - Atmospheric Dispersion Model - Exposure pathway's

نویسندگان

Haghighi shad

Ofough Consulting Engineers (Eng. Sec)-Boushehr

Sharifi

Amirkabir Univeristy (PHD, Nuclear Eng)

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
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  • A.Haghighi Shad, Calculation of Total effective dose equivalent ....Published by ...
  • _ 1.Priliminary report on safety assurancea for BNPP- Moscow.(1999) ...
  • نمایش کامل مراجع