NUCLEAR TEST

Question 1

If you have radioactive source that contains 110,000 radio atoms and 1000 of those atoms disintegrate in 30 mins. What is the disintegration rate in per second?

Answer 1

0.5 dps

Question 2

When red blood cells are tagged in vitro with Tc99m the majority have a biological half- life of 40 hours. What is the effective half-life?

Answer 2

5.2 hours

Question 3

Kilo

Answer 3

10^3

Question 4

Tera

Answer 4

10^12

Question 5

Pico

Answer 5

10^-12

Question 6

Exa

Answer 6

10^18

Question 7

Milli

Answer 7

10^3

Question 8

Giga

Answer 8

10^9

Question 9

Mega

Answer 9

10^6

Question 10

Micro

Answer 10

10^-6

Question 11

1 fermi

Answer 11

10^-15m

Question 12

131I would have a decay constant of ____ day

A.1.0
B.0.0866
C. .1025

Answer 12

B.

Question 13

A 10uCi dose of I-131 is in a 2 ml volume. What is the concentration?

A. 5uCi/ml
B. 10 uCi
C. 2 uCi/ml

Answer 13

A.

Question 14

A 20MBq Ga67 sheet source decays at a rate of 10,000 cpm will have how many uCi?

A.7.4x 10^11
B.540
C.6.2 x 10^9
D.405

Answer 14

B.

Question 15

A 50 Mbq 99mTc source that decays at a rate of 100,000 cps will have how many Millicuries?

A.20
B.10
C.5
D.1.4

Answer 15

D

Question 16

A 99mTc source with a specific activity of 2mCi/g decays at a rate of 100 disintegrations every second. How many disintegrations do you have if you count the source for 5 minutes?

A. 30 disintegration
B. 3000 disintegration
C. 3x 10^4 disintegrations
D. 3x 10^8 disintegrations

Answer 16

C.

Question 17

A vial of 99mTc-MAA contains 40 mCi in 3.2 ml at 0600. What is the concentration of 1800?

A. 20mCi/ml
B. 12.5 mCi/ml
C