NMTCB - Radiation Safety and
Regulations
1. Deterministic radiation-induced health ettects where the severity increases with the dose,
above a certain threshold
skin burns, hair loss, acute radiation syndrome
2. Stochastic Cancer causing ettects, higher dose than deterministic ettects
3. Exposure to Minimal exposure for imaging and test, therapies increase risk of
Pa-tient
exposure All must be approved by FDA for use
Practicing ALARA can reduce exposure to the patient
4. Exposure to tech- Regular exposure occurs, practicing ALARA reduces exposure,
monitoring badges
nologist 7. Acute Radiation Sickness (ARS)
5. Short term ef-
fects of
radiation
6. Long term ef-
fects of
radiation
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28
, NMTCB - Radiation Safety and
Regulations
following occupational exposure k Heart and Lung
rates monthly is important Problems Endocrine
Issues
levels of radiation can lead
Cognitive and Neurological Ettects
to short term ettects
Musculoskeletal and Soft Tissue Problems
such as Acute Radiation
Reproductive Issues
Sickness (ARS) or
Eye and Vision Problems
Cutaneous Radiation
Injury (CRI) also known as radiation sickness, occurs following a significant exposure to
ion-izing radiation, usually over a short period
n from treatments - not
imaging, long term
exposure to high
amounts of radiation
ts can be:
2/
28
, NMTCB - Radiation Safety and
Regulations
8. Cutaneous refers to skin damage resulting from high-dose radiation exposure
Radi-ation
Injury (CRI)
response of the tumor to irradiation that can be measured by the extent of
9. Radiosensitivi
regression, rapidity of response, and response durability
ty (effects on
the cell) radiation kills cells by inhibiting their ability to divide
10. ALARA (time) the amount of time spent with a dose the great the exposure
for ALARA it is important to reduce the time spent with the dose to reduce
exposure
11. ALARA (distance) inverse square law
12. ALARA Half-value Layers (HVL)
(sheild-ing)
HVL = Each level of shielding creates the exposure to be half of the
previous shielded amount. Example 2 HVL = 25% of original dose, 3
HVL = 12.5% of original dose
13. What does
As Low As Reasonably Achievable
ALARA stand
for?
14. Survey meters Geiger-Müller (GM) Counters
Ionization Chambers (Cutie Pie)
15. GM Counter Checks for contamination, rapid response time
0.1 mRem/hr to 100 mRem/hr able to be detected
May be probe (must be pointed directly at the source) or "pancake probe"
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28
Regulations
1. Deterministic radiation-induced health ettects where the severity increases with the dose,
above a certain threshold
skin burns, hair loss, acute radiation syndrome
2. Stochastic Cancer causing ettects, higher dose than deterministic ettects
3. Exposure to Minimal exposure for imaging and test, therapies increase risk of
Pa-tient
exposure All must be approved by FDA for use
Practicing ALARA can reduce exposure to the patient
4. Exposure to tech- Regular exposure occurs, practicing ALARA reduces exposure,
monitoring badges
nologist 7. Acute Radiation Sickness (ARS)
5. Short term ef-
fects of
radiation
6. Long term ef-
fects of
radiation
1/
28
, NMTCB - Radiation Safety and
Regulations
following occupational exposure k Heart and Lung
rates monthly is important Problems Endocrine
Issues
levels of radiation can lead
Cognitive and Neurological Ettects
to short term ettects
Musculoskeletal and Soft Tissue Problems
such as Acute Radiation
Reproductive Issues
Sickness (ARS) or
Eye and Vision Problems
Cutaneous Radiation
Injury (CRI) also known as radiation sickness, occurs following a significant exposure to
ion-izing radiation, usually over a short period
n from treatments - not
imaging, long term
exposure to high
amounts of radiation
ts can be:
2/
28
, NMTCB - Radiation Safety and
Regulations
8. Cutaneous refers to skin damage resulting from high-dose radiation exposure
Radi-ation
Injury (CRI)
response of the tumor to irradiation that can be measured by the extent of
9. Radiosensitivi
regression, rapidity of response, and response durability
ty (effects on
the cell) radiation kills cells by inhibiting their ability to divide
10. ALARA (time) the amount of time spent with a dose the great the exposure
for ALARA it is important to reduce the time spent with the dose to reduce
exposure
11. ALARA (distance) inverse square law
12. ALARA Half-value Layers (HVL)
(sheild-ing)
HVL = Each level of shielding creates the exposure to be half of the
previous shielded amount. Example 2 HVL = 25% of original dose, 3
HVL = 12.5% of original dose
13. What does
As Low As Reasonably Achievable
ALARA stand
for?
14. Survey meters Geiger-Müller (GM) Counters
Ionization Chambers (Cutie Pie)
15. GM Counter Checks for contamination, rapid response time
0.1 mRem/hr to 100 mRem/hr able to be detected
May be probe (must be pointed directly at the source) or "pancake probe"
3/
28
