Zobrazeno 1 - 10
of 59
pro vyhledávání: '"N. Rastkhah"'
Publikováno v:
مجله علوم و فنون هستهای, Vol 33, Iss 4, Pp 1-8 (2013)
Radiography is known as one of the oldest and most widely used nondestructive testing (NDT) techniques, where it introduces the most appreciated technique by producing images which are acting as unique fingerprint records of samples of interest. Amon
Externí odkaz:
https://doaj.org/article/9cf9ec9860f443c78e0ca88217edf968
Publikováno v:
Applied Mechanics and Materials. 83:35-40
Nondestructive testing (NDT) is an important tool in the world of industry. Among different NDT methods, radiography plays a very interesting role both in industry and medicine. Medical and industrial uses of X and gamma rays were recognized since mo
Autor:
T. Oruji, Mohammad Reza Kardan, M. Jafari-zadeh, F. Nazeri, M. R. Dashti-pour, Z. Gholamali-zadeh, A. A. Kazemi-Movahed, M. R. Sadegh-khani, Mehran Taheri, M. H. Jahanbakhshian, F. Gheshlaghi, F. Yousefi-Nejad, J. Karimi-Diba, M. Darabi, N. Rastkhah, Asad Babakhani, S. M. Hosseini-Pooya, A. Enferadi
Publikováno v:
Radiation Protection Dosimetry. 144:52-55
This report presents status of external and internal dose assessment of workers and introducing the structure of National Dose Registry System of Iran (NDRSI). As well as types of individual dosemeters in use, techniques for internal dose assessment
Publikováno v:
International Journal of Pressure Vessels and Piping. 83:736-741
In this study of pipes of 150 mm diameters, thickness ranging from 4.2 to 15.0 mm was determined by using two radiography techniques: tangential radiography and double wall radiography. It was concluded that thickness losses of 10%, 20% and 50% could
Autor:
F. Ghasemi, N. Rastkhah, Mohammad H. Kargarnovin, B. Rokrok, Hamid Soltanian-Zadeh, Mehran Taheri, Kaveh Edalati, Amir Movafeghi
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 47:625-630
Radiographic inspection is one of the most appreciated techniques among non-destructive testing methods due to the production of a film which acts as a unique fingerprint record. Converting radiographs to a digital format and further digital image pr
Publikováno v:
Radiation Protection Dosimetry. 118:375-377
Despite well-developed Regulatory Authority systems for radiation protection, there are some concerns about lost-controlled and poorly controlled radioactive sources owing to abundance and dispersion of the users. This survey covers the current situa
Publikováno v:
Insight - Non-Destructive Testing and Condition Monitoring. 46:396-398
Wall thickness measurement and deterioration determination of 6 and 10 inch pipes due to corrosion/erosion/pitting was evaluated by using radiographic film density measurements. Special reference blocks were prepared withdefined step wall reductions
Publikováno v:
Radiation protection dosimetry. 144(1-4)
In this research work, a semi-automatic densitometry system has been developed for large-scale monitoring services by use of film badge dosemeters. The system consists of a charge-coupled device (CCD)-based scanner that can scan optical densities (OD
Publikováno v:
Journal of radiological protection : official journal of the Society for Radiological Protection. 26(4)
The increasing number of industrial radiographers and their considerable occupational exposure has been one of the main concerns of the Iran Nuclear Regulatory Authority (INRA) in recent years. In 2002, a quantitative system of evaluating the safety
Publikováno v:
Radiation protection dosimetry. 123(3)
This paper discusses an accident, which occurred in one of the radiation application centres in Iran, follow-up investigations as well as lessons learnt. In January 2004 the Regulatory Authority was informed through a university radiation protection