Tritium (Hydrogen-3) | 357050 TBq/Kg (9650 Ci/g) | 12.32 years | 5.7 (average) | Alpha emission only Isotope | Activity | Half-life | Energies (KeV) | Polonium-210 | 166500 TBq/Kg (4500 Ci/g) | 138 days | 5304.5 | Isotope | Activity | Half-life | Radiation types | Energies (KeV) | Caesium-137 | 3256 TBq/Kg (88 Ci/g) | 30.1 years | Gamma & beta | G: 32‚ 661.6 B: 511.6‚ 1173.2 |
Premium Ionizing radiation Radioactive decay Isotope
electromagnetic waves) due to disintegration of atomic nuclei of some elements. These cause radioactive pollution. Radiations are of two types ionising and non-ionising. Non-ionising radiations affect only those components which absorb them and have low penetrability. Ionising radiations have high penetration power and cause breakage of macro molecules. Man-made sources of radiation pollution are mining and refining of plutonium and thorium‚ production and explosion and nuclear weapons‚ nuclear
Premium Nuclear fission Ionizing radiation Uranium
RADIOISOTOPES IN MEDICINE ABSTRACT: Nuclear medicine has become fundamentally life-saving as a diagnostic tool in today’s medicine‚ however exposure to radioisotopes has risks. Understanding these risks and making an educated decision is crucial in personal choices regarding medical treatment. This overview of recent and relevant research provides an insight and support to the benefits of radioisotope usage‚ whilst presenting the associated risks. INTRODUCTION: With the discovery
Premium Nuclear medicine Ionizing radiation Cancer
involves the use of x-rays‚ a form of ionizing radiation‚ CT scan is used to detect and diagnose the presence and recurrence of tumors in human body and also provides the stage of a cancer. Several case studies have shown that CT scan can be effective in both colorectal cancer and lung cancer screening. Exposure to ionizing radiation is caused to increase the risk of cancer. Children may be at higher risk because usually children are more sensitive to radiation than adults and have a longer life expectancy
Premium Cancer Oncology Breast cancer
I have chosen to compare ‘Exposure’ by Wilfred Owen and ‘Bayonet Charge’ by Ted Hughes. Owen uses two powerful similes in Exposure. The first being in line 7‚ equating the harsh wind to ‘twitching agonies of men’ is a gruesome comparison that conveys a natural‚ merciless phenomenon in terms of vivid human suffering. In complete contrast with the reality of the poem’s setting‚ the touch of snow is equated with an image of lying under a blossom-laden tree in England. The home fires contain glowing
Premium Metaphor Poetry Simile
Radioisotopes in Medicine Nuclear medicine uses radiation to provide diagnostic information about the functioning of a person’s specific organs‚ or to treat them. Diagnostic procedures are now routine. * Radiotherapy can be used to treat some medical conditions‚ especially cancer‚ using radiation to weaken or destroy particular targeted cells. * Tens of millions of nuclear medicine procedures are performed each year‚ and demand for radioisotopes is increasing rapidly. Nuclear Medicine
Premium Ionizing radiation Gamma ray Medicine
material to different levels of exposure. How is it done? Producing a sensitometric strip and plotting a characteristic curve. sensitometer (optical step wedge) and densitometer are used to measure film’s response to light Response of exposure & How is it manifested The response is the change that takes place‚ after exposure to electromagnetic radiation (light or x-rays)‚ in the photosensitive emulsion on the film The response of the film to exposures is manifested as a degree of blackening
Premium X-ray Photographic film Electromagnetic radiation
References: 1. United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) (2000) Sources and effects of ionizing 2. Lee MH‚ Lee CW (1999) Determination of 137Cs‚ 90Sr and fallout Pu in the volcanic soil of Korea 4. UNSCEAR (1988) United Nations scientific committee on the effects of atomic radiation sources and effects of ionizing radiation. 6. Currie LA (1968) Limits for qualitative detection and quantitative determination 7. Al-Masri MS‚ Amin
Premium Ionizing radiation
Fresh Fruits Irradiation for Phytosanitary Purposes in Thailand using a Multipurpose Irradiation Facility Suwit Tunlayadechanont Synergy Health (Thailand) Ltd. 700/465 Amata Nakorn Industrial Moo 7 Tambol Donhuaroh‚ Amphur Muang Chonburi‚ Chonburi 20000 Thailand Keywords: gamma irradiation‚ phytosanitary treatment‚ pest management Abstract Thailand reached an agreement with the USA for the commercial irradiationof six types of exotic fresh fruits‚ mango‚ mangosteen‚ longan‚ rambutan‚ lychee‚ and
Premium Ionizing radiation Gamma ray Radioactive decay
with radioisotopes due to the safety concerns. There is a risk of radiation when working in close contact with the nuclear reactions. This is because radioisotopes release radiation when they are being produced. Radiation has the power to detach an electron from an atom‚ which can lead to destruction and mutation of cells. Since radiation has this ability‚ and humans are composed of many cells‚ if there is enough radiation exposure‚ it can cause serious harm to health. One more drawback of radioisotopes
Premium Radioactive decay Ionizing radiation Atom