دانلود پاورپوینت بررسی اجمالی رادیوگرافی

دانلود پاورپوینت بررسی اجمالی رادیوگرافی

دانلود پاورپوینت بررسی اجمالی رادیوگرافی – این فایل با ۵۸ اسلاید و فرمت پاورپوینت می باشد. علاقه مندان به موضوع فایل می توانند به سایت سافت سیویل مراجعه نموده و دانلود نمایند. فایل مورد نظر به زبان لاتین می باشد و نمونه ای مناسب برای ترجمه می باشد.

خلاصه مطالب آن چنین می باشد:

• This module presents information on the NDT method of radiographic inspection or radiography.
• Radiography uses penetrating radiation that is directed towards a component.
• The component stops some of the radiation. The amount that is stopped or absorbed is affected by material density and thickness differences.
• These differences in “absorption” can be recorded on film, or electronically.

• Electromagnetic Radiation
• General Principles of Radiography
• Sources of Radiation

–Gamma Radiography

–X-ray Radiography

• Imaging Modalities

–Film Radiography

–Computed Radiography

–Real-Time Radiography

–Direct Digital Radiography

–Computed Radiography

• Radiation Safety
• Advantages and Limitations
• Glossary of Terms

The radiation used in Radiography testing is  a higher energy (shorter wavelength) version of the electromagnetic waves that we see every day.  Visible light is in the same family as x-rays and gamma rays.

The part is placed between the radiation source and a piece of film.  The part will stop some of the radiation.  Thicker and more dense area will stop more of the radiation.

The film darkness (density) will vary with the amount of radiation reaching the film through the test object

• The energy of the radiation affects its penetrating power. Higher energy radiation can penetrate thicker and more dense materials.
• The radiation energy and/or exposure time must be controlled to properly image the region of interest.
• X-rays “see” a crack as a thickness variation and the larger the variation, the easier the crack is to detect

When the path of the x-rays is not parallel to a crack, the thickness variation is less and the crack may not be visible

دانلود پاورپوینت بررسی اجمالی رادیوگرافی

مرجع:

www.ndt-ed.org

www.asnt.org