Terahertz tomographic imaging of XVIIIth Dynasty Egyptian sealed pottery.
نویسندگان
چکیده
A monochromatic millimeter-wave imaging system coupled with an infrared temperature sensor has been used to investigate historic objects preserved at the Museum of Aquitaine (France). In particular, two-dimensional and three-dimensional analyses have been performed in order to reveal the internal structure of nearly 3500-year-old sealed Egyptian jars.
منابع مشابه
T-ray tomographic imaging - Terahertz Electronics Proceedings, 2002. IEEE Tenth International Conference on
Abstmd--We present three terahertz wave (T-ray) tomographic imaging modalities: T-ray computed tomography (T-ray CT), T-ray dinractive tomography (T-ray DT), and tomographic imaging with a Fresnel binaly lens. T-ray CT provides 3-dimensional (3D) images and reveals information about the target for functional imaging. T-ray DT achieves suhmm spatial resolution, and a Binary lens leads a novel im...
متن کاملT-ray tomography.
We demonstrate tomographic T-ray imaging, using the timing information present in terahertz (THz) pulses in a reflection geometry. THz pulses are reflected from refractive-index discontinuities inside an object, and the time delays of these pulses are used to determine the positions of the discontinuities along the propagation direction. In this fashion a tomographic image can be constructed.
متن کاملTerahertz imaging modalities of ancient Egyptian mummified objects and of a naturally mummified rat.
During the last few years, terahertz (THz) imaging has been used to investigate artwork and historic artifacts. The application of THz imaging to mummy investigations is very attractive since it provides spectroscopic information over a broad frequency range and its radiation has proven to be harmless to human cells. However, compared with the current standard imaging methods in mummy imaging-X...
متن کاملEnhanced depth resolution in terahertz imaging using phase-shift interferometry
We describe an imaging technique for few-cycle optical pulses. An object to be imaged is placed at the focus of a lens in one arm of a Michaelson interferometer. This introduces a phase shift of approximately p between the two arms of the interferometer, via the Gouy phase shift. The resulting destructive interference provides a nearly background-free measurement, and a dramatic enhancement in ...
متن کاملAms Radiocarbon Dating of an Ancient Pottery Workshop in Hepu County, China
An ancient pottery workshop belonging to the Han Dynasty was excavated in Caoxie village, Hepu County. Caoxie village is an important archaeological site in Hepu County, Beihai City, in south China’s Guangxi Zhuang Autonomous Region. It is believed that Hepu County was the oldest departure point on the ancient maritime trading route during the Han Dynasty (206 BC to AD 220) due to the ideal nat...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Applied optics
دوره 50 20 شماره
صفحات -
تاریخ انتشار 2011