Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
RADT465: safety
Radiation physics, radiobiology, and radiation protection
| Question | Answer |
|---|---|
| Are dosimeters personal protection devices? T/F | False |
| What is the minimum lead equivalent for a lead apron? | 0.5 mm |
| What is the minimum lead equivalent for lead gloves? | 0.25 mm |
| What is the minimum lead equivalent for thyroid shields? | 0.5mm |
| What is the minimum lead equivalent for lead glasses? | 0.35mm |
| What is the minimum lead equivalent for a bucky slot cover? | 0.25mm |
| What is the minimum lead equivalent for a clear overhead protective barrier? | 0.5 mm |
| What is one drawback about TLD dosimeters? | One time read |
| What is the most common type of dosimeter? | OSL |
| What is an inexpensive dosimeter that is also sensitive to temperature, being dropped, etc? | Film badge |
| What type of dosimeter is meant for short term use? | Pocket ionization chamber |
| What is the total filtration required if you are operating below 50 kV? | 0.5 mm |
| What is the total filtration required if you are operating at 50-70 kV? | 1.5 mm |
| What is the total filtration required if you are operating above 70 kV? | 2.5 mm |
| How much filtration do most tubes have? | 2.5 mm |
| Roentgen is equal to _____ in SI units | c/kg |
| Rads are equal to _____ in SI units | Gy |
| Rems are equal to ____ in SI units | Sieverts |
| Curies are equal to ____ in SI units | Becquerels |
| What is the annual dose for an occupational worker in traditional units? | 5 rem |
| What is the dose limit to the eye for an occupational worker in traditional units? | 15 rem |
| What is the dose limit for the hands, skin & feet for an occupational worker in traditional units? | 50 rem |
| What is the cumulative dose for an occupational worker in traditional units? | 1 x age (rems) |
| What is the annual dose for someone in the public in traditional units? | 0.5 rems |
| What is the dose limit for the lens of the eye, skin, hands and feet of a public person in traditional units? | 5 rems |
| What is the monthly limit for an embryo in traditional units? | 0.05 rems |
| What is the dose limit for the entire gestation of an embryo in traditional units? | 0.5 rems |
| 2000 cGy is = _____ Gy | 2 Gy |
| 425 mrem is = _____ rem | 0.425 rem |
| 1500 mSv is = ____ Sv | 1.5 Sv |
| 125 kV is = _____ V | 125,000 V |
| 55 MV is = _________ V | 55,000,000 V |
| 25 Rad is = ______ mrad | 25,000 mrads |
| 150 Gy is = _____ cGy | 15,000 Gcy |
| 250 V is = ______ kV | 0.25 kV |
| 46 V is = ______ MV | 0.000046 |
| What is the quality factor for X-rays? | 1 |
| What is the quality factor for gamma rays? | 1 |
| What is the quality factor for beta particles? | 1 |
| What is the quality factor for fast neutrons? | 10 |
| What is the quality factor for protons? | 10 |
| What is the quality factor for alpha particles? | 20 |
| What is the max fluoro exposure rate at tabletop? | 10 R/minute |
| What is the mA level is fluoro? | 2-5 mA |
| What is the min SSD for a fixed fluoro unit? | 15 in |
| What is the min SSD for a mobile fluoro unit? | 12 in |
| How often does the cumulative fluoro timer go off? | Every 5 minutes |
| A portable x-ray cord must be how long? | 6 ft |
| What is the leakage radiation limit? | 100 mR/hr @ 1 m |
| What is the tissue weighting factor for bone and skin? | 0.01 |
| What is the tissue weighting factor for the thyroid, breast and bladder? | 0.05 |
| What is the tissue weighting factor for the red bone marrow, colon, lung and stomach? | 0.12 |
| What is the tissue weighting factor for the gonads? | 0.20 |
Created by:
Proviabi0
Popular Radiology sets