| ¿µ¹® | radiation | ÇÑ±Û | ¹æ»ç¼± |
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| ¼³¸í | ºûÀÇ ÀüÀÚÀÚ±âÆÄ³ª ȤÀº ÀÔÀÚÆÄ(¥á, ¥â, ¥ã¼±)¸¦ ¸»Çϴµ¥, ¾î¶² ±Ù¿ø¹°Áú¿¡¼ »ý°Ü ¹æÃâµÈ´Ù. À̿½ÖÀ» »ý¼ºÇÏ´Â °í¿¡³ÊÁö ¹æ»ç¼±(X-¼±°ú °¨¸¶¼±)À» ¸»ÇÑ´Ù. ¹æ»ç¼±Çϸé, ÁÖ·Î Àü¸®¹æ»ç¼±À» ÀǹÌÇÑ´Ù. ÀÌ·± ¹æ»ç¼±À» ÀÌ¿ëÇÏ¿©, °¡Àå ±âº»ÀûÀÎ ¹æ»ç¼±ÇÐÀû °Ë»ç¸¦ ÇÒ ¼ö ÀÖÀ¸¸ç, ÀÌ¿Ü Ä¡·á¿¡µµ ÀÌ¿ëÇϰí ÀÖ´Ù. °¢ ¹æ»ç¼±ÀÇ Á¾·ù¿¡ µû¶ó Á¶±Ý¾¿ ÀÎü¿¡ ¹ÌÄ¡´Â ¿µÇâÀÌ ´Ù¸£¸ç, À̸¦ ÀÌ¿ëÇÏ¿© °¢±â ´Ù¸£°Ô Áø´Ü ¹× Ä¡·á¿¡ ÀÌ¿ëÇÑ´Ù. |
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| ¿µ¹® | radiation dose | ÇÑ±Û | ¹æ»ç¼±·® |
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| ¼³¸í | ¹æ»ç¼±Á¶»çÀÇ Á¤µµ. ¹æ»ç¼±»ý¹°ÇÐÀ̳ª ÀÎüÀÇ ¹æ»ç¼±¹æÈ£¿¡¼´Â Àü¸®¹æ»ç¼±ÀÇ ¾ç, Áï ¼±·®ÀÌ ¹®Á¦°¡ µÈ´Ù. ¹æ»ç¼±·®¿¡¼µµ ±¹Á¦´ÜÀ§°è(SI)°¡ ä¿ëµÇ¾î ±¹Á¦¹æ»ç¼±¹æÈ£À§¿øÈ¸(ICRP)ÀÇ ±Ç°í¿¡ µû¶ó¼ ´ÙÀ½ÀÇ ¿©·¯ ´ÜÀ§°¡ ³Î¸® »ç¿ëµÈ´Ù. ¨ç Èí¼ö¼±·®(absorbed dose). ¹°ÁúÀÇ ´ÜÀ§Áú·®ÀÌ ¹æ»ç¼±¿¡ ÀÇÇØ ¹Þ¾ÆµéÀÌ´Â ¿¡³ÊÁö. ÀÌ ´ÜÀ§´Â ¹æ»ç¼± ¹× ¹°ÁúÀÇ Á¾·ù°¡ ¾î¶°ÇÑ °ÍÀÌ´õ¶óµµ »ç¿ëÇÒ ¼ö ÀÖ´Ù. ±¹Á¦´ÜÀ§´Â J/kgÀ̸ç À̰Ϳ¡ °íÀ¯ÇÑ ¸íĪÀ¸·Î ±×·¹ÀÌ(gray, ±âÈ£ Gy)°¡ ºÎ¿©µÈ´Ù. 1Gy=100¶óµå(rad). ¨è Á¶»ç¼±·®(exposure) ¶Ç´Â °øÁß¼±·®. X¼± ¶Ç´Â ¥ã¼±¿¡ ÇÑÇØ¼ »ç¿ëµÈ´Ù. ±¹Á¦´ÜÀ§´Â C/kg. ¨é ¼±·®´ç·®(dose equivalent). ¹æ»ç¼±¹æÈ£¸¦ À§ÇØ »ç¿ëµÇ´Â ¾ç. ±âÈ£´Â H. H´Â ¹æ»ç¼±ÀÇ Á¾·ù¿Í ¿¡³ÊÁö¿¡ ÀÇÇØ »ýü¿¡ ÁÖ´Â È¿°ú¸¦ º¸Á¤ÇÏ´Â ¼±Áú°è¼ö(Q)¿Í ±× ¹ÛÀÇ ÀÎÀÚ(¿¹¸¦ µé¸é ¼±·®·ü, ¹æ»ç¼ºµ¿À§¿ø¼Ò¿¡ ÀÇÇÑ ³»ºÎÇÇÆø½Ã¿¡´Â ±× ÇÙÁ¾ÀÇ Ã¼³»ºÐÆ÷ µî)¿¡ ±Ù°ÅÇÑ º¸Á¤°è¼ö(N)¸¦ Èí¼ö¼±·®(D)¿¡ °öÇÑ °Í, Áï H=D-Q-N. ¶ÇÇÑ DÀÇ ´ÜÀ§¸¦ Gy ¶Ç´Â rad·Î Ç¥½ÃÇÏ¿´À» ¶§ HÀÇ ´ÜÀ§¸¦ °¢°¢ ½Ãº£¸£Æ®(sievert, ±âÈ£ Sv) ¹× ·½(rem)À̶ó°í ÇÑ´Ù. µû¶ó¼ 1 Sv=102rem. ÀϹÝÀûÀ¸·Î ´ÜÀ§½Ã°£´çÀÇ ¼±·®À» ¼±·®·ü(dose rate)À̶ó°í ÇÑ´Ù. |
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| ¿µ¹® | radiation therapy | ÇÑ±Û | ¹æ»ç¼±¿ä¹ý |
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| ¼³¸í | X¼±, ¥ã¼±ÀÇ ÀüÀÚ¹æ»ç¼±À̳ª ÀüÀÚ¼±, ¾çÀÚ¼±, Áß¼ºÀÚ¼± µîÀÇ ÀÔÀÚ¹æ»ç¼±À» ÀÌ¿ëÇØ, ÁÖ·Î ¾Ç¼º Á¾¾ç Ä¡·á¸¦ ¸ñÀûÀ¸·Î ÇÏ´Â Ä¡·á¹ýÀÌ´Ù. ¾Ï¼¼Æ÷°¡ ÁÖÀ§ÀÇ Á¤»ó¼¼Æ÷º¸´Ùµµ ¹æ»ç¼± °¨¼ö¼ºÀÌ ³ôÀº Á¡À» ÀÌ¿ëÇÏ¿©, Á¤»ó¼¼Æ÷ÀÇ ¼Õ»óÀ» °¡´ÉÇÑ ÇÑ ÃÖ¼Ò·Î ¾ïÁ¦ÇÏ¸é¼ ¾Ï¼¼Æ÷¸¦ ÆÄ±«ÇÑ´Ù. »ç¿ëµÇ´Â ¹æ»ç¼±¿¡´Â ¹ÐºÀ¼Ò¼±¿ø¿¡¼ ³ª¿À´Â ¥ã¼±, Á÷¼±°¡¼Ó±â¿¡¼ ¾ò¾îÁö´Â °í¿¡³ÊÁö X¼±°ú ÀüÀÚ¼±, ÅÚ·¹ÄÚ¹ßÆ®ÀåÄ¡¿¡ ÀÇÇÑ 60CoÀÇ ¥ã¼±°ú, º£Å¸Æ®·Ð¿¡ ÀÇÇÑ ÀüÀÚ¼±, »çÀÌÅ©·ÎÆ®·Ð¿¡¼ ¾ò¾îÁö´Â ¾çÀÚ¼±, Áß¼ºÀÚ¼± µîÀÌ ÀÖ´Ù. |
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| ¿µ¹® | radiation therapy | ÇÑ±Û | ¹æ»ç¼±Ä¡·á |
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| ¼³¸í | ¹æ»ç¼±ÀÇ »ì±ÕÈ¿°ú³ª ¼¼Æ÷¸¦ Á×ÀÌ´Â È¿°ú¸¦ Ä¡·á¿¡ ÀÌ¿ëÇÏ´Â ¹æ¹ýÀ¸·Î, Á¼Àº Àǹ̷Π¾ÏÀÇ ¹æ»ç¼±Ä¡·á¸¦ ÀǹÌÇÑ´Ù. ¾Ï¿¡ ´ëÇÑ ¹æ»ç¼±Ä¡·á´Â ¾Ï¼¼Æ÷¸¦ Á×À̴µ¥ È¿°ú°¡ Å« º£Å¸¼±À» ÁÖ·Î »ç¿ëÇÑ´Ù. ÇÏÁö¸¸, ÀÌ·± ¹æ»ç¼±Ä¡·á´Â Á¤»ó¼¼Æ÷¿¡µµ Å« ¿µÇâÀ» ³¢ÃÄ ÀÌ¿¡ µû¸¥ ±â´ÉÀÇ Àå¾Ö¸¦ °¡Á®¿Ã ¼ö ÀÖ´Ù. µû¶ó¼ ¹æ»ç¼±Ä¡·á¿¡ À־ ´ÜÁö ±× ¾Ï¼¼Æ÷¿¡ ´ëÇÑ ÀÛ¿ë»Ó¸¸ ¾Æ´Ï¶ó, Á¤»ó¼¼Æ÷¿¡ ´ëÇÑ ÀÛ¿ëµµ °í·ÁÇÏ¿© ½ÃÇàÇÑ´Ù. |
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| INAA | instrumental neutron activation analysis |
|---|---|
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| PBNA | partial body neutron activation |
| RNAA | radiochemical neutron activation analysis |
| TBNA | total body neutron activation; treated but not admitted |
| BNCT | Boron Neutron Capture Therapy |
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| IVNAA | In vivo neutron activation analysis |
| INAA | Instrumental Neutron Activation Analysis |
| NAA | Neutron Activation Analysis |
| NCT | Neutron Capture Therapy |
| neutron radiation | An emission of neutrons from the nucleus of an atom by decay or fission. (05 Mar 2000) |
|---|
| boron neutron capture therapy | A technique for the treatment of neoplasms, especially gliomas and melanomas in which boron-10, an isotope, is introduced into the target cells followed by irradiation with thermal neutrons. (12 Dec 1998) |
|---|---|
| neutron | <physics> An elementary atomic particle that has no charge and a mass that is approximately the same as that of a proton. Neutrons are found in allatoms except the lightest isotopes of hydrogen. (09 Jan 1998) |
| neutron activation analysis | Activation analysis in which the specimen is bombarded with neutrons. Identification is made by measuring the resulting radioisotopes. (12 Dec 1998) |
| neutron capture therapy | A technique for the treatment of neoplasms in which an isotope is introduced into target cells followed by irradiation with thermal neutrons. (12 Dec 1998) |
| integrated neutron flux | <radiobiology> Sum (integral) of the neutron flux (neutrons per unit time per unit area, see flux) over all time, total number of neutrons which passed through a unit area. Important figure-of-merit in testing effects of neutron radiation on materials, and in assessing how long such materials can survive exposure to neutron sources (such as fission reactor cores and D-T fusion plasmas). (09 Oct 1997) |
| thermal neutron | <radiobiology> A neutron in thermal equilibrium with its surrounding environment. Thermal neutrons are those that have been slowed down by a moderator to speeds characteristic of the local temperature. Compare: fast neutron. (09 Oct 1997) |
| fast neutron | <physics> Neutron with energy greater than roughly 100,000 electron volts (100 keV). Distinguished from slow or thermal neutrons. (09 Oct 1997) |
| abnormalities, radiation-induced | Congenital changes in the morphology of organs produced by exposure to ionizing or non-ionizing radiation. (12 Dec 1998) |
| accidents, radiation | Accidental dispersal of radioactive materials from a radiation source. Accidents at nuclear reactors can involve large groups of the population from dispersion of radioactivity into the environment and through fallout or a few individuals with high injurious doses. (12 Dec 1998) |
| acoustic radiation | The fibres that pass from the medial geniculate body to the transverse temporal gyri of the cerebral cortex by way of the sublentiform part of the internal capsule. Synonym: radiatio acustica. (05 Mar 2000) |
| acute radiation syndrome | <syndrome> A syndrome caused by exposure of the body to large amounts of radiation, (e.g., from certain forms of therapy, accidents, and nuclear explosions; it is divided into three major forms which are, in ascending order of severity, the haematogic, gastrointestinal, and central nervous system-cardiovascular forms; its clinical manifestations are divided into prodromal, latent, overt, and recovery stages. (05 Mar 2000) |
| adaptive radiation | <chemistry> The evolution of new speciesor sub-species to fill unoccupied ecological niches. (06 May 1997) |
| alpha radiation | <physics, radiobiology> The most easily absorbable type of radiation, it consists of a stream of alpha particles, doubly ionised helium nuclei which are electrically charged and produce intense ionisation in matter. Alpha radiation can be deflected in electromagnetic fields. (09 Oct 1997) |
| annihilation radiation | The radiation resulting when a positron from beta positive decay comes to rest. It encounters an electron, and they annihilate each other and convert their rest mass into two 0.51-MeV gamma rays emitted in exactly opposite directions. (05 Mar 2000) |
| background radiation | <radiobiology> Level of environmental radation due to background sources. Background sources can be natural, such as cosmic rays and natural radioactive elements (principally radon, but including other elements such as isotopes of potassium (which people get substantial amounts of in foods like bananas)). They can also be man-made, such as from fossil-fuel combustion, everyday leakage from nuclear activities, and leftover from atmospheric nuclear weapons tests. Background radiation is usually distinguished from acute radiation, such as from medical X-rays, nuclear accidents, radioisotope therapy, or other short-term doses. The man-made contribution to background radiation is quite small compared to the natural contribution, medical uses dominate human exposure to acute radiation. (09 Oct 1997) |
| neutron radiation | radiation of neutrons (as by a neutron bomb) |
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