TCDHA Rad Theory - Week 1 & 2 | | | | | | | |
exam with precise detailed | | | |
answers
thyroid collar - Correct answer ✔flexible lead shield
| | | | | | |
-protect the thyroid gland from scatter radiation.
| | | | | |
lead apron - Correct answer ✔a flexible lead shield
| | | | | | | | |
-to protect the patients reproductive and blood forming tissues from scatter
| | | | | | | | | | |
radiation
inherent filtration - Correct answer ✔primary beam passes through glass
| | | | | | | | | |
window, oil bars and tube head | | | | | |
- 0.5 to 1.0mm aluminum
| | | |
added filtration - Correct answer ✔FILTERS OUT LONG WAVELENGTHS W
| | | | | | | | | |
LOW ENERGY AND SOFT RADIATION
| | | | |
aluminum discs in the path of X-ray beam | | | | | | | |
total filtration= -1.5mm below 70kVp
| | | |
-2.5mm above 70 kVp | | |
, collimator - Correct answer ✔restricts size and shape of X-ray beam
| | | | | | | | | | |
circular- beam= 2.75in d | | |
rectangular- exposes 60% less tissue | | | |
primary radiation - Correct answer ✔-useful beam
| | | | | |
penetrating xray beam that exits tube head | | | | | |
secondary radiation - Correct answer ✔created when the primary beam
| | | | | | | | | |
interacts with matter | |
Scatter radiation - Correct answer ✔A form of secondary radiation
| | | | | | | | |
-when an x-ray beam has been deflected from its path by interaction with
| | | | | | | | | | | | | |
matter
insight film (F-speed) - Correct answer ✔-fastest intraoral film
| | | | | | | |
-20% reduction on exposure over E-speed
| | | | |
-film holding devices are used
| | | |
-limits x radiation received
| | |
radiographer protection - Correct answer ✔-stand 6ft away at 90-135 degree
| | | | | | | | | | |
angle to X-ray beam
| | |
exam with precise detailed | | | |
answers
thyroid collar - Correct answer ✔flexible lead shield
| | | | | | |
-protect the thyroid gland from scatter radiation.
| | | | | |
lead apron - Correct answer ✔a flexible lead shield
| | | | | | | | |
-to protect the patients reproductive and blood forming tissues from scatter
| | | | | | | | | | |
radiation
inherent filtration - Correct answer ✔primary beam passes through glass
| | | | | | | | | |
window, oil bars and tube head | | | | | |
- 0.5 to 1.0mm aluminum
| | | |
added filtration - Correct answer ✔FILTERS OUT LONG WAVELENGTHS W
| | | | | | | | | |
LOW ENERGY AND SOFT RADIATION
| | | | |
aluminum discs in the path of X-ray beam | | | | | | | |
total filtration= -1.5mm below 70kVp
| | | |
-2.5mm above 70 kVp | | |
, collimator - Correct answer ✔restricts size and shape of X-ray beam
| | | | | | | | | | |
circular- beam= 2.75in d | | |
rectangular- exposes 60% less tissue | | | |
primary radiation - Correct answer ✔-useful beam
| | | | | |
penetrating xray beam that exits tube head | | | | | |
secondary radiation - Correct answer ✔created when the primary beam
| | | | | | | | | |
interacts with matter | |
Scatter radiation - Correct answer ✔A form of secondary radiation
| | | | | | | | |
-when an x-ray beam has been deflected from its path by interaction with
| | | | | | | | | | | | | |
matter
insight film (F-speed) - Correct answer ✔-fastest intraoral film
| | | | | | | |
-20% reduction on exposure over E-speed
| | | | |
-film holding devices are used
| | | |
-limits x radiation received
| | |
radiographer protection - Correct answer ✔-stand 6ft away at 90-135 degree
| | | | | | | | | | |
angle to X-ray beam
| | |
