DOSIMETRY 2 FINAL- ALL EXAM |700 QUESTIONS with
verified answers
'Time intensity factor' is another term synonymous with: Ans✓✓✓
mG/Hrs
"Absorbed dose" is defined as: Ans✓✓✓ energy absorbed per unit
mass
"High Radiation Area" warning signs must be posted in all areas where
a person, if continuously present could receive an exposure in excess of
_______ mR in any one hour. Ans✓✓✓ 100
"Horns" are most prominent: Ans✓✓✓ near the surface
"Horns" created in isodose curves are most likely to be prominent in
what machine? Ans✓✓✓ 4 MV
"Horns" on isodose curves are created by the: Ans✓✓✓ flattening filter
"The angle of tilt for an isodose curve at the CR at a specified depth",
defines what term? Ans✓✓✓ wedge angle
,"the mass (weight) of a particle when it is not moving" defines what
term? Ans✓✓✓ resting mass
1 amu is equal to how much energy? Ans✓✓✓ 931 mv
1.it is an efficient absorber of high energy gamma rays; Ans✓✓✓
1000mCi= Ans✓✓✓ 1 Ci
1Gy= ___________ Sv. Ans✓✓✓ 1
1st biologic reaction to radioactivity Ans✓✓✓ Bequerel
1st to use protective lead shielding Ans✓✓✓ Grubbe
1st to use x-rays to treat a disease Ans✓✓✓ Grubbe
1st x-ray fatality Ans✓✓✓ Dally
1st year of the "KV Era" Ans✓✓✓ 1913
,1Sv= Ans✓✓✓ 1 joule/ kG
2 (N2) Ans✓✓✓ Pauli
3. beam collimation; Ans✓✓✓
3. Both systems can be used for both cobalt and linacs; Ans✓✓✓
3. concrete is structurally strong Ans✓✓✓ all of them
3. during the last trimester Ans✓✓✓ during 1st trimester and during
the period of major organogenesis
3.7 x 1010 dps defines what unit of measurement? Ans✓✓✓ Ci
4. Equivalent TAR Ans✓✓✓ all of them
4. Individual utilizes separate wedge for each field size Ans✓✓✓ 1,3
, 4. isotones Ans✓✓✓ isomers and nuclides
4. larger tumors Ans✓✓✓ 2,3
5. Supraclavicular Ans✓✓✓ 1,3,4,5
6. SDD Ans✓✓✓ all of them
6.023 x 10 23 Ans✓✓✓ Avagadro
A .3mm Pt filter for radium source would represent what change in
exposure rate constant? Ans✓✓✓ 4% increase
A 3cm 3-dimensional tumor that is to be treated by an interstitial
implant would probably best be treated by this type of source
configuration: Ans✓✓✓ Volume
A benign condition of the conjunctiva of the eye Ans✓✓✓ pterygium
A body at rest tends to stay at rest. This defines the principle or law of:
Ans✓✓✓ inertia
verified answers
'Time intensity factor' is another term synonymous with: Ans✓✓✓
mG/Hrs
"Absorbed dose" is defined as: Ans✓✓✓ energy absorbed per unit
mass
"High Radiation Area" warning signs must be posted in all areas where
a person, if continuously present could receive an exposure in excess of
_______ mR in any one hour. Ans✓✓✓ 100
"Horns" are most prominent: Ans✓✓✓ near the surface
"Horns" created in isodose curves are most likely to be prominent in
what machine? Ans✓✓✓ 4 MV
"Horns" on isodose curves are created by the: Ans✓✓✓ flattening filter
"The angle of tilt for an isodose curve at the CR at a specified depth",
defines what term? Ans✓✓✓ wedge angle
,"the mass (weight) of a particle when it is not moving" defines what
term? Ans✓✓✓ resting mass
1 amu is equal to how much energy? Ans✓✓✓ 931 mv
1.it is an efficient absorber of high energy gamma rays; Ans✓✓✓
1000mCi= Ans✓✓✓ 1 Ci
1Gy= ___________ Sv. Ans✓✓✓ 1
1st biologic reaction to radioactivity Ans✓✓✓ Bequerel
1st to use protective lead shielding Ans✓✓✓ Grubbe
1st to use x-rays to treat a disease Ans✓✓✓ Grubbe
1st x-ray fatality Ans✓✓✓ Dally
1st year of the "KV Era" Ans✓✓✓ 1913
,1Sv= Ans✓✓✓ 1 joule/ kG
2 (N2) Ans✓✓✓ Pauli
3. beam collimation; Ans✓✓✓
3. Both systems can be used for both cobalt and linacs; Ans✓✓✓
3. concrete is structurally strong Ans✓✓✓ all of them
3. during the last trimester Ans✓✓✓ during 1st trimester and during
the period of major organogenesis
3.7 x 1010 dps defines what unit of measurement? Ans✓✓✓ Ci
4. Equivalent TAR Ans✓✓✓ all of them
4. Individual utilizes separate wedge for each field size Ans✓✓✓ 1,3
, 4. isotones Ans✓✓✓ isomers and nuclides
4. larger tumors Ans✓✓✓ 2,3
5. Supraclavicular Ans✓✓✓ 1,3,4,5
6. SDD Ans✓✓✓ all of them
6.023 x 10 23 Ans✓✓✓ Avagadro
A .3mm Pt filter for radium source would represent what change in
exposure rate constant? Ans✓✓✓ 4% increase
A 3cm 3-dimensional tumor that is to be treated by an interstitial
implant would probably best be treated by this type of source
configuration: Ans✓✓✓ Volume
A benign condition of the conjunctiva of the eye Ans✓✓✓ pterygium
A body at rest tends to stay at rest. This defines the principle or law of:
Ans✓✓✓ inertia
