| PAD | pain and distress; patient surface axis depth; percutaneous abscess drainage; percutaneous automated... |
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| RPA | radial photon apsorptiometry; replication protein A; resultant physiologic acceleration; reverse pas... |
| SPECT | single photon emission computed tomography |
| photon |
A quantum (energy packet) of electromagnetic radiation; the elementary particle of photon radiation therapy. X rays and gamma rays are photon radiation.
출처: www.llu.edu/proton/patient/glossary.html
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| photon |
a pulse of electromagnetic radiation emitted when electrons drop from a higher to a lower energy level. Photons are light particles.
출처: www.riverdeep.net/current/2002/01/010702_light_tg....
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| photon |
All matter absorbs and emits electromagnetic radiation in discrete small quantities called photons. The energy of a photon (E) varies withthe frequency of the radiation according to:
출처: www.ch.ic.ac.uk/vchemlib/mol/glossary/
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| photon |
Individual packet of electromagnetic energy that makes up electromagnetic radiation.
출처: astronomy.nju.edu.cn/astron/AT3/GLOSS_P.HTM
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| photon |
A discrete quantity of energy that can be thought of as a packet of electromagnetic radiation traveling at the speed of light.
출처: www.wrcc.dri.edu/ams/glossary.html
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