کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6552117 160426 2015 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel approach to determine post mortem interval using neutron radiography
ترجمه فارسی عنوان
یک رویکرد جدید برای تعیین فاصله پس از مرگ با استفاده از رادیوگرافی نوترون
کلمات کلیدی
فاصله پس از مرگ، رادیوگرافی نوترون، محتوای هیدروژن بافت سگ،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Neutron radiography of decaying canine tissues was performed to evaluate the PMI by measuring the changes in H content. In this study, dog cadavers were used as a model for human cadavers. Canine tissues and cadavers were exposed to controlled (laboratory settings, at the University of Tennessee, College of Veterinary Medicine) and uncontrolled (University of Tennessee Anthropology Research Facility) environmental conditions, respectively. Neutron radiographs were supplemented with photographs and histology data to assess the decompositional stages of cadavers. Results demonstrated that the increase in neutron transmission likely corresponded to a decrease in hydrogen content in the tissue, which was correlated with the decay time of the tissue. Tissues depleted in hydrogen were brighter in the neutron transmission radiographs of skeletal muscles, lung, and bone, under controlled conditions. Over a period of 10 days, changes in neutron transmission through lung and muscle were found to be higher than bone by 8.3%, 7.0%, and 2.0%, respectively. Results measured during uncontrolled conditions were more difficult to assess and further studies are necessary. In conclusion, neutron radiography may be used to detect changes in hydrogen abundance that can be correlated with the post-mortem interval.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Forensic Science International - Volume 251, June 2015, Pages 11-21
نویسندگان
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