نتایج جستجو برای: ornl phantom
تعداد نتایج: 17596 فیلتر نتایج به سال:
Cantoni, C., D. K. Christen, A. Goyal, L. Heatherly, F. A. List, E. D. Specht, M. Varela, andS. J. Pennycook, “Metal-Oxide Interfaces in 2 Generation HTS Wires: Mechanism of EpitaxialGrowth of Oxide Films Mediated by a Sulfur Superstructure,” invited abstract submitted to the 204thElectrochemical Society’s Fall Meeting, Orlando, Florida, October 12–17, 2003. Cantoni, C., D. K. Chris...
Reports produced before January 1, 1996, may be purchased by members of the public from the following source. Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange (ETDE) representatives, and International Nuclear Information System (INIS) representatives from the following source. Government nor any agency thereof, nor any of their employees, makes any warran...
Phantoms for radiation dosimetry, including physical phantoms for radiological use in medicine in particular, were introduced as early as the 1910s [1] while those for radiation protection dosimetry started to evolve in the late 1950s. This innovation was driven partly from the consensus that dose quantity for protection purposes should be assessed in “receptor conditions” instead of the tradit...
In 2005, Oak Ridge National Laboratory (ORNL) received delivery of a 5294 processor Cray XT3. The XT3 is Cray’s third-generation massively parallel processing system. The ORNL system uses a single-processor node built around the AMD Opteron and uses a custom chip—called SeaStar—for interprocessor communication. The system uses a lightweight operating system called Catamount on its compute nodes...
To address the need for published data, considerable effort has gone into formalizing the process of data publication. From funding agencies to publishers, data publication has rapidly become a requirement. Digital Object Identifiers (DOI) and data citations have enhanced the integration and availability of data. The challenge facing data publishers now is to deal with the increased number of p...
This paper reviews select examples of recent targets produced by the group, including 171 Yb wires, 62 Ni pellets, and 25 Mg foils. The discussed will cover processes equipment used for stable isotope manufacturing at ORNL give a broader understanding thin film preparation techniques, high-purity specialty materials, development highly material-conservative methods.
از آنجا که در محیط اطراف ما به طور طبیعی پرتودهی وجود دارد و انسان همواره در معرض تابش قرار دارد، مهم است که بدانیم میزان تابش دریافتی چقدر است. این مسئله، مسئله غامض و قابل اهمیتی است. هدف از این تحقیق، محاسبه ی مقادیر دز تحت پرتوگیری از چشمه های پرتوزای موجود در خاک است که این چشمه ها شامل عناصر پتاسیم-40، توریوم-232، اورانیوم-238 و ایزوتوپ های حاصل از واپاشی زنجیره آن ها می باشند. به این منظ...
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