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Aggarwal, Suresh Kumar
- Nuclear Forensics:What, Why and How?
Abstract Views :268 |
PDF Views:76
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1 1006, Sunflower, Neelkanth Gardens, Govandi-E, Mumbai 400 088, IN
1 1006, Sunflower, Neelkanth Gardens, Govandi-E, Mumbai 400 088, IN
Source
Current Science, Vol 110, No 5 (2016), Pagination: 782-791Abstract
Nuclear forensics is a relatively young branch of science in nuclear science and technology. It is a multidisciplinary field with an aim to answer questions regarding any interjected or smuggled material. The main objectives of these studies are to find out the origin/source of the material, date and place of production, age of the material, i.e. the date when it was last chemically processed or purified and if possible, the intended use of the material. Different analytical techniques, both non-destructive and destructive, e.g. gamma spectrometry, mass spectrometry, Raman spectroscopy, Fourier-transform infra red spectroscopy, scanning electron microscopy, transmission electron microscopy and laser-induced breakdown spectroscopy are employed to obtain the maximum possible information about the radioactive nuclear material. Information about structure and morphology of signatures, isotopic composition of the element, total amount, associated cations and anions, and isotope data on other elements, e.g. sulphur, Sr, Nd and Pb as to arrive at definite conclusions for material attribution.Keywords
Age Determination, Mass Spectrometry, Nuclear Forensics, Plutonium, Radioactive Elements, Uranium.Full Text
- Evolution and Progress in the Application of Radiation in Cancer Diagnosis and Therapy
Abstract Views :247 |
PDF Views:69
Authors
Affiliations
1 Department of Urology, Apollo Hospital, Bhubaneswar 751 001, IN
2 Radiochemistry and Isotope Group, Bhabha Atomic Research Centre, Trombay, 1006, Sunflower, Neelkanth Gardens, Govandi-E, Mumbai 400 088, IN
1 Department of Urology, Apollo Hospital, Bhubaneswar 751 001, IN
2 Radiochemistry and Isotope Group, Bhabha Atomic Research Centre, Trombay, 1006, Sunflower, Neelkanth Gardens, Govandi-E, Mumbai 400 088, IN
Source
Current Science, Vol 113, No 03 (2017), Pagination: 413-421Abstract
Cancer is a ubiquitous health problem globally caused by poor food quality, environmental pollution, genetic factors, etc. Despite the manifold presumptive theories put forth for its causation, there is an extreme paucity of knowledge as regards the actual etiology of cancer, as well as any preventive or prophylactic therapy. The treatment options available include surgery, chemotherapy and radiation therapy (both internal and external). There have been technical and technological advancements in the fields of 'cancer surgery' and 'cancer chemotherapy', and radiotherapy in oncology is not too far behind. X-rays (from linear accelerators LINACs) and gamma rays (e.g. in Bhabhatron) are commonly used for radiation treatment of various types of cancers. New developments include proton beam therapy (PBT) and heavy ion beam therapy (IBT) (e.g. C+6 ion). These new developments of PBT and IBT offer significant advantages to treat paediatric patients, and to radiate deep-seated and radio-resistant tumours. This article gives an overview of the various radiation therapies used worldwide, cost comparison of setting up these facilities, operational and treatment costs and advantages, limitations as well as the present status of different charged particle therapy facilities available worldwide.Keywords
Accelerators, Cancer, Diagnosis, Oncology, Radiation Therapy.Full Text
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