Test your knowledge of plutonium and PUMA...

What is the chemical symbol for Plutonium?
Pm
Pb
Pa
Pu

What is the neutron sensitive atom in PUMA sensors?
Boron-10
Lithium-6
Helium-3

Which isotope of Pu is the most desired in weapons and nuclear fuels?
Pu-238
Pu-239
Pu-240
Pu-241
Pu-242
Pu-244

What happens when a neutron is moderated?
Velocity increase, energy decreases.
Mass decreases and spin reverses.
Both energy and velocity decrease.
Both energy and velocity increase.

START 1 has been ratified. How many warheads will be left in the US and Russian arsenals?
10
200
1500
6000
100000

Who were not one of the original nuclear weapons states?
United States
France
Peoples Republic of China
Russia
India
England

What is the approximate percentage of Pu-240 in weapons?
1-7%
10-27%
31-64%
85.5%
None of the above.

The radiological danger from plutonium is greater than its chemical toxicity.
False
True

When a thermal neutron is captured by Li-6, what 2 atoms are produced?
Deuterium and Uranium
Tritium and Helium (alpha particle)
Hydrogen and Helium
All of the above

Why do we need to measure neutrons to detect plutonium?
Neutrons are not easily shielded.
The neutron background is low and relatively constant globally.
There are fewer legitamate reasons to possess a neutron source.
The other radiation from plutonium decay is easy to shield.
All of the above.

How did you score?

	90-100 You are very knowledgeable.
	80-90 Great score, congratulations.
	70-80 Review the information you missed.
	60-70 You think therefore you can learn more.
	50-60 Back to school time.
	<50 Maybe you are a rocket scientist, but you are not a nuclear expert.