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RTEC
Study Guide
| Question | Answer |
|---|---|
| Licensure | CRT/State: government body, CDPH-RHB, pay fee, maintain CEU's, and grants ability to practice modality |
| Certificate | Education: Guarantees education, competence, and passes examination |
| Registration | Pay fee, update with further education, and abides by ethical standards |
| What do you have to do every 2 years? | Register with ARRT, pay fee, and upload CEU's |
| What is ionization? | An atom gains/loses an electron. It has the ability to disrupt life processes. |
| What are the three atoms? | Protons, Neutrons, and Electrons. |
| Which atom is negative? | Electrons (-) |
| Which atom is positive? | Protons (+) |
| Which atom is neutral? | Neutrons (=) |
| What happens when an electron is lost? | Causes ionization. The electron can travel and attach to another atom. |
| Cation | Losing an electron - overall positive |
| Anion | Gaining an electron - overall negative |
| Is all radiation ubiquitous? | Yes. That means radiation is all around, everywhere |
| What are background radiations? | Cosmic, terrestrial, and internal |
| What is the human exposure of radiation from man-made radiation? | 50%, it has increased due to advanced technology |
| Internal Radiation | Consuming or inhaling foods or air with radioactive material |
| Cosmic Radiation | The sun and radiation emitting from space |
| Terrestrial Radiation | Elements from earth emits radiation |
| What are the earth elements that emit radiation? | Radon, radium, and uranium |
| What does EMS stand for? | Electromagnetic Spectrum |
| What is EMS? | Series of seven different types of radiation energies |
| What are the lower EMS energies? | Radio waves, microwaves, and Infra-red |
| What is the energy in the center of the EMS scale? | Visible light |
| What are the higher EMS energies? | Ultraviolet, x-rays, and gamma rays |
| What happens when wavelengths get shorter? | The frequency increases - stronger waves |
| What happens when wavelengths get longer? | The frequency decreases - weaker waves |
| What is a frequency? | How frequent the waves are |
| What is a wavelength? | The distance between the peaks or troughs of the wave |
| What happens if the frequency is high? | It has more penetrating power that it can get through the body |
| What are early signs of overexposure to radiation? | Skin erythema (skin reddening) and eye damage |
| What is a photon? | one single sine wave, a single pack of energy |
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