Tables, Figures, and Box

TABLES

2.1

 

U.S. Spacecraft Using Radioisotope Power Systems,

 

9

2.2

 

RPS Contribution to Space Science and Exploration Missions,

 

10

3.1

 

NASA’s Demand for 238Pu, 2009-2028 (as of April 2008),

 

15

3.2

 

Best-Case Estimate of 238Pu Shortfall through 2028: 238Pu Demand Versus Supply Subsequent to Launch of Outer Planets Flagship 1,

 

19

D.1

 

Primary Emissions Produced by Radioisotopes with Half-lives of 15 to 100 Years,

 

44

D.2

 

Characteristics of 238Pu and 244Cm Isotope Fuels,

 

44

E.1

 

Radioisotope Power Systems for Space Exploration,

 

49

FIGURES

S.1

 

Potential 238Pu demand and net balance, 2008 through 2028,

 

3

3.1

 

Potential 238Pu supply, demand, and net balance, 2008 through 2028,

 

20

3.2

 

Time line for reestablishing domestic 238Pu production and NASA mission planning, 2010 through 2028, assuming the Department of Energy starts work in fiscal year 2010,

 

22

4.1

 

Relative magnitude of key elements of NASA’s radioisotope power system program,

 

25

4.2

 

Performance of past, present, and future radioisotope power systems,

 

26

BOX

1.1

 

What Is a Radioisotope Power System?,

 

6



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