Optimization of a measurement facility for radioactive waste free release by Monte Carlo simulation.

نویسندگان

  • Jaroslav Solc
  • Petr Kovar
  • Jiri Suran
  • Virginia Peyres
  • Eduardo García-Toraño
چکیده

A novel free release measurement facility (FRMF) was developed within the joint research project "Metrology for Radioactive Waste Management" of the European Metrology Research Programme. Before and during FRMF design and construction, Monte Carlo calculations with MCNPX and PENELOPE codes were used to optimize the thickness of the shielding, the dimensions of the container, and the shape of detector collimators. Validation of the numerical models of the FRMF detectors and the results of the optimization are discussed in the paper.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Monte Carlo Simulation for Treatment Planning Optimization of the COMS and USC Eye Plaques Using the MCNP4C Code

Introduction: Ophthalmic plaque radiotherapy using I-125 radioactive seeds in removable episcleral plaques is often used in management of ophthalmic tumors. Radioactive seeds are fixed in a gold bowl-shaped plaque and the plaque is sutured to the scleral surface corresponding to the base of the intraocular tumor. This treatment allows for a localized radiation dose delivery to the tumor with a ...

متن کامل

Further Development in Characterization of Radioactive Waste Drums by Non Destructive Gamma Spectrometry at GRR-1

A non destructive technique based on gamma spectrometry and application of the Monte Carlo method for detector efficiency calibration, was used to assay radioactive content waste drums. Exploranium GR-130 miniSPEC portable gamma ray spectrometer was used to externally monitor radioactive waste drums containing ion exchange resin waste from the water demineralization system of GRR-1 open pool-ty...

متن کامل

Dosimetric comparison between four kinds of radioactive esophageal stents to be used in the treatment of advanced esophageal cancers using Monte Carlo simulation

Finding accurate methods to be employed for the treatment of esophageal cancers is of especial interest for researchers, due to the sensitivity of this tissue. Recently radioactive stents loaded with I-125 brachytherapy seeds have been widely investigated for the treatment of advanced esophageal cancer. It is necessary to investigate the dose distribution of any radioactive esophageal stents be...

متن کامل

An Integrated Simulation Model for the Performance Assessment of a Radioactive Waste Repository

Disposal facilities for radioactive wastes comprise a series of engineered and natural (geologic) barriers to contain the radionuclides until their radiation hazard has decreased to acceptable levels. It is required that the long-term functionality of the containment barriers be evaluated by a quantitative risk analysis, also termed performance assessment. This entails the implementation of a P...

متن کامل

Silastic Thickness Optimization in Uveal Melanoma Brachytherapy by Monte Carlo Method

Introduction In order to treat uveal Melanoma , first, radioactive seeds are laid on a silicone- made substance which is called Silastic after that they are inserted in the plaque, and finally, this plaque containing silicone-made substance is stitched to the sclera surface. The dose gradient within the tumor and healthy tissues can be varied due to changing the Silastic thickness between scler...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

دوره 87  شماره 

صفحات  -

تاریخ انتشار 2014