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The average radiation dose from an abdominal X-ray is 0.7 millisieverts (0.0007 Sv), that from an abdominal CT scan is 8 mSv, that from a pelvic CT scan is 6 mGy, and that from a selective CT scan of the abdomen and the pelvis is 14 mGy. [7]
Recognized effects of higher acute radiation doses are described in more detail in the article on radiation poisoning.Although the International System of Units (SI) defines the sievert (Sv) as the unit of radiation dose equivalent, chronic radiation levels and standards are still often given in units of millirems (mrem), where 1 mrem equals 1/1,000 of a rem and 1 rem equals 0.01 Sv.
The College of Natural Resources and Environment contains four departments as well as executive and traditional master's programs in the National Capital Region. As of 2010-11, the college had 737 students taking classes on the Blacksburg campus, thereby making it the smallest at Virginia Tech in terms of enrollment.
MGY or a variant thereof is used as an abbreviation for: Megagray (MGy) and milligray (mGy), SI derived units of the gray (absorbed radiation dose) mgy, MGY, mmgy, MMgy, or MMGY: Million gallons per year
The rep has variously been defined as 83 or 93 ergs per gram of tissue (8.3/9.3 mGy) [13] or per cc of tissue. [14] In 1953 the ICRU recommended the rad, equal to 100 erg/g as a new unit of absorbed radiation, [15] but then promoted a switch to the gray in the 1970s.
The Virginia Tech College of Engineering is the academic unit that manages engineering research and education at Virginia Tech. The College can trace its origins to 1872, and was formally established in 1903. Today, The College of Engineering is the largest academic unit of Virginia Tech and has 14 departments of study.
College Confidential was founded to "demystify many aspects of the college admissions process, and to help even 'first timer' students and parents understand the process." The founding editorial team, consisting of Dave Berry, a senior admissions officer; David Hawsey; and Roger Dooley, a parent who is active in high school academics; supplied ...
This list details Virginia Tech's Graduate Science Program as ranked by U.S. News & World Report in May 2019. [9] It is not inclusive of all College of Science graduate programs. The Clinical Psychology program ranks No. 47 in the US and according to U.S. News & World Report. [7] The Statistics program ranked No. 37 in the US. [10]