| ¿µ¹® | linear accelerator | ÇÑ±Û | ¼±»ó°¡¼Ó±â |
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| ¼³¸í | Ä¡·á¹æ»ç¼±°ú¿¡¼ ÀÌ¿ëÇÏ´Â ±â°è·Î¼ ÀüÀÚ¸¦ »ý¼ºÇØ ³½´Ù. ÀüÀÚ´Â ´Ü¼øÈ÷ X-¼±°ú´Â ´Ù¸¥ °ÍÀ¸·Î ÀüÀÚ°¡ ±Ý¼Ó¿¡ ºÎµúÇô ³ª¿À´Â °ÍÀÌ X-¼±ÀÌ´Ù. ÀüÀÚ´Â Áø´Ü¸ñÀûº¸´Ù´Â Ä¡·á¸ñÀûÀ¸·Î ÁÖ·Î ÇǺÎÀÇ ¾Ç¼ºÁ¾¾ç(¾Ï)¿¡ »ç¿ëµÈ´Ù. |
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| ¿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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| HEIR | health effects of ionizing radiation; high-energy ionizing radiation |
|---|---|
| LET | lidocaine, epinephrine, and tetracaine [solution]; linear or low energy transfer |
| HCG, hCG | Human Chorionic Gonadotropin; »ç¶÷À¶¸ð¼º¼º¼±ÀÚ±ØÈ£¸£¸ó 1. Placental Glycoprotein Hormone &nbs... |
| HP | halogen phosphorus; handicapped person; haptoglobin; hard palate; Harvard pump; health profession(al... |
| HEP | hemolysis end point; hepatoerythropoietic porphyria; high egg passage [virus]; high-energy phosphate... |
| LET | High-linear energy transfer |
|---|---|
| LET | Linear Energy Transfer |
| LSER | Linear Solvation Energy Relationship |
| LFER | linear free energy relationship |
| ET | Energy transfer |
| linear energy transfer | <radiobiology> Average amount of energy lost per unit of particle track length and expressed in keV um-1. Acronym: LET (16 Dec 1997) |
|---|---|
| resonance energy transfer | <technique> Transfer of energy from one fluorochrome to another. The emission wavelength of the fluorochrome excited by the incident light must approximately match the excitation wavelength of the second fluorochrome. If light at the second emission wavelength is detected, it implies that the two fluorochromes were physically within a few nanometres. Used as a technique to probe protein or cell interactions. (25 Jun 1999) |
| energy transfer | The transfer of energy of a given form among different scales of motion. In biochemistry, this concept generally refers to the transfer of groups from compounds that contain energy-rich bonding arrangements to compounds that have relatively energy-poor bonding characteristics via thermodynamically permissible enzymatic reactions. This principle is a major premise of the interaction between energy-producing and energy-utilizing metabolic pathways in living cells. (12 Dec 1998) |
| fluorescence energy transfer | <technique> Transfer of energy from one fluorochrome to another. The emission wavelength of the fluorochrome excited by the incident light must approximately match the excitation wavelength of the second fluorochrome. If light at the second emission wavelength is detected, it implies that the two fluorochromes were physically within a few nanometres. Used as a technique to probe protein or cell interactions. (25 Jun 1999) |
| radiotherapy, high-energy | Radiotherapy using high-energy (megavolt or higher) ionizing radiation. Types of radiation include gamma rays, produced by a radioisotope within a teletherapy unit; X-rays, electrons, protons, alpha particles (helium ions) and heavy charged ions, produced by particle acceleration; and neutrons and pi-mesons (pions), produced as secondary particles following bombardment of a target with a primary particle. (12 Dec 1998) |
| high energy bond | <chemistry> Chemical bonds that release more than 25kJ/mol on hydrolysis: their importance is that the energy can be used to transfer the hydrolysed residue to another compound. The risk in using the term is that students may think the bond itself is different in some way, whereas it is the compound that matters. Hydrolysis of creatine phosphate yields 42.7kJ/mol, of phosphoenolpyruvate, 53.2, ATP to ADP, 30.5: the latter is important because it shows that energetically the hydrolysis of creatine phosphate will suffice to reconstitute ATP, hence the use of creatine phosphate in muscle. (18 Nov 1997) |
| high energy compounds | Classically, a group of phosphoric esters whose hydrolysis takes place with a standard free energy change of -5 to -15 kcal/mol (or, -20 to -63 kJ/mol) (in contrast to -1 to -4 kcal/mol or, -4 to -17 kJ/mol) for simple phosphoric esters like glucose-6-phosphate or alpha-glycerophosphates), thus being capable of driving energy-consuming reactions in living cells or reconstituted cell-free systems; adenosine 5'-triphosphate, with respect to the beta-and gamma-phosphates, is the best known and is regarded as the immediate energy source for most metabolic syntheses. The general types are acid anhydrides, phosphoric esters of enols, phosphamic acid (R-NH-PO3H2) derivatives, acyl thioesters (e.g., of coenzyme A), sulfonium compound's (R3-S+), and aminoacyl esters of ribosyl moieties. See: high energy phosphates. (05 Mar 2000) |
| high energy particle generating unit | A machine capable of providing highly energised radiation for the purposes of radiotherapy treatment. (16 Dec 1997) |
| high energy phosphate bond | See: high energy phosphates. (05 Mar 2000) |
| high energy phosphates | Those phosphate's that, on hydrolysis, yield an unusually large amount of energy; e.g., nucleotide polyphosphates such as ATP, enol phosphate's such as phosphoenolpyruvate. See: high energy compounds. Synonym: energy-rich phosphates. (05 Mar 2000) |
| high-energy shock waves | Compression waves of large amplitude, across which density, pressure, and particle velocity change drastically. (12 Dec 1998) |
| programming, linear | A technique of operations research for solving certain kinds of problems involving many variables where a best value or set of best values is to be found. It is most likely to be feasible when the quantity to be optimised, sometimes called the objective function, can be stated as a mathematical expression in terms of the various activities within the system, and when this expression is simply proportional to the measure of the activities, i.e., is linear, and when all the restrictions are also linear. It is different from computer programming, although problems using linear programming techniques may be programmed on a computer. (12 Dec 1998) |
| non-linear | Not linear. (05 Dec 1998) |
| superficial linear keratitis | Spontaneous, painful keratitis with epithelial erosion and folds in Bowman's membrane. (05 Mar 2000) |
| linear | Pertaining to or resembling a line. Origin: L. Linearis (18 Nov 1997) |
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