Radiation Protection Numbers

US-Metric Conversion of 1in

2.5 cm

Binding Energy of K shell

69.5 keV

Binding Energy of L shell

12 keV

Binding Energy of M shell

3 keV

Binding Energy of N shell

1 kEV

Quality Factor of X-Ray

1

Quality Factor of Gamma Ray

1

Quality Factor of Beta

1

Quality Factor of Alpha

20

Quality Factor of fast Neutrons

10

Ionization Chamber detects

1 mR/hr to Thousands of R/hr

Geiger-Muller counter detects

> 100 mR/hr

Film Badge detects

10 mrem to 500 rem, 0.1 mSv to 5 Sv

OSL detects

1 mrem - 1000 rem, 0.01 mSv - 10 Sv

Thermoluminescent Dosimeter detects

1.3 x 10^-6 c/kg

Pocket Ionization Chamber detects

0 - 200 mR

Dose Equivalent Limit: General Public

0.5 rem/yr, 5 mSv/yr

Dose Equivalent Limit: General Public report #

116

Dose Equivalent Limit: Occupational Worker

5 rem/yr, 50 mSv/yr

Dose Equivalent Limit: Occupational Worker report #

116

Dose Equivalent Limit: Radiography Student >18

0.1 rem/yr, 1 mSv/yr

Dose Equivalent Limit: Radiography Student report #

116

Dose Equivalent Limit: Lifetime Occupational

1 rem x age, 10 mSv x age

Dose Equivalent Limit: Lifetime Occupational report #

116

Dose Equivalent Limit: Occupational Selective Doses: Lens of Eye

15 rem/yr, 150 mSv/yr

Dose Equivalent Limit: Occupational Selective Doses: Lens of Eye report #

116

Dose Equivalent Limit: Occupational Selective Doses: Skin/Hands/Feet

50 rem/yr, 500 mSv/yr

Dose Equivalent Limit: Occupational Selective Doses: Skin/Hands/Feet report #

116

Dose Equivalent Limit: Pregnant Worker: Gestation

0.5 rem/gestation, 5 mSv/gestation

Dose Equivalent Limit: Pregnant Worker: Gestation report #

116

Dose Equivalent Limit: Pregnant Worker: Monthly

0.05 rem/month, 0.5 mSv/month

Dose Equivalent Limit: Pregnant Worker: Monthly report #

116

Dose Equivalent Limit: Fetal Dose: Yearly

15 rem/yr, 150 mSv/yr

Dose Equivalent Limit: Fetal Dose: Yearly report #

116

Dose Equivalent Limit: Fetal Dose: Gestation

0.5 rem/gestation, 5 mSv/gestation

Dose Equivalent Limit: Fetal Dose: Gestation report #

116

Dose Equivalent Limit: Fetal Dose: Monthly

0.05 rem/month, 0.5 mSv/month

Dose Equivalent Limit: Fetal Dose: Monthly report #

116

Collimator SID accuracy

SID accurate within 2% of indicated SID

SID accuracy report #

116

Manual Collimator SID accuracy

within 2% of SID

PBL Collimator SID accuracy

within 1-2% of SID

Manual Collimator SID accuracy report #

116

PBL Collimator SID accuracy report #

116

Aprons (recommended)

0.5 mm Pb

Aprons (recommended) report #

102

Aprons (minimum)

n/a

Aprons (minimum) report #

n/a

Neck/Thyroid (recommended)

0.5 mm Pb

Neck/Thyroid (recommended) report #

102

Neck/Thyroid (minimum)

n/a

Neck/Thyroid (minimum) report #

n/a

Gloves (recommended)

0.25 mm Pb

Gloves (recommended) report #

102

Gloves (minimum)

n/a

Gloves (minimum) report #

n/a

Eyeglasses (recommended)

0.35 mm Pb

Eyeglasses (recommended) report #

102

Eyeglasses (minimum)

n/a

Eyeglasses (minimum) report #

n/a

Flouro Drape (recommended)

0.5 mm Pb

Flouro Drape (recommended) report #

102

Flouro Drape (minimum)

0.25 mm Pb

Flouro Drape (minimum) report #

102

Bucky Cover (recommended)

0.5 mm Pb

Bucky Cover (recommended) report #

102

Bucky Cover (minimum)

0.25 mm Pb

Bucky Cover (minimum) report #

102

Glass Window (recommended)

1.5 mm Pb

Glass Window (recommended) report #

102

Glass Window (minimum)

n/a

Glass Window (minimum) report #

n/a

Inherent Filtration standards

0.5 mm Al

Inherent Filtration standards report #

102

Total Filtration: Tube Capacity <50 kVp

0.5 mm Al

Total Filtration: Tube Capacity >50 kVp report #

102

Total Filtration: Tube Capacity 50-70 kVp

1.5 mm Al

Total Filtration: Tube Capacity 50-70 kVp report #

102

Total Filtration: Tube Capacity 70+ kVp

2.5 mm Al

Total Filtration: Tube Capacity 70+ kVp report #

102

SSD for all traditional X-Rays except dental

minimum 12 in, 30 cm

SSD for all traditional X-Rays except dental report #

102

Portables: Source to Skin Distance

minimum 12 in, 30 cm

Portables: Source to Skin Distance report #

102

Collimator to Skin Distance

minimum 6 in, 15 cm

Fluoroscopy (Fixed) Source to Tabletop Distance

minimum 15 in, 38 cm

Collimator to Skin Distance report #

102

Portable Fluoroscopy Source to Tabletop Distance

minimum 12 in, 30 cm

Fluoroscopy (Fixed) Source to Tabletop Distance report #

102

Portable Fluoroscopy Source to Tabletop Distance report #

102

Cord on Portable

6 ft, 72 in, 180 cm, 2 m

Cord on Portable report #

102

Cord on Fixed Unit

18 in, 45 cm

Cord on Fixed Unit report #

102

Scattered Beam

1/1000, 0.001, 0.1% the intensity of the primary beam 1 meter from patient

Scattered Beam report #

102

Tabletop Exposure Rate Flouro

maximum 10 R/min, 5 R/min @ 1 m

Tabletop Exposure Rate Flouro report #

102

Leakage Radiation

maximum 100 mR/hr @ 1 m, 1 mGy/hr @ 1 m

Leakage Radiation Report #

102