TANDEM VAN DE GRAAFF ACCELERATOR

A High Voltage Engineering Corporation Model FN purchased in 1966 with NSF funds; operation funded primarily by the U.S. Department of Energy. See W.G. Weitkamp and F.H. Schmidt, "The University of Washington Three Stage Van de Graaff Accelerator," Nucl. Instrum. Meth. 122, 65 (1974).

Some Available Energy Analyzed Beams

Ion

Max. Current

(particle m A)

Max. Energy

(MeV)

Ion Source

1H or 2H

50

18

DEIS or 860

3He or 4He

2

27

Double Charge-Exchange Source

3He or 4He

30

7.5

Tandem Terminal Source

6Li or 7Li

1

36

860

11B

5

54

860

12C or 13C

10

63

860

* 14N

1

63

DEIS or 860

16O or 18O

10

72

DEIS or 860

F

10

72

DEIS or 860

* Ca

0.5

99

860

Ni

0.2

99

860

I

0.01

108

860

* Negative ion is the hydride, dihydride, or trihydride.

Additional ion species available include the following: Mg, Al, Si, P, S, Cl, Fe, Cu, Ge, Se, Br and Ag. Less common isotopes are generated from enriched material.

BOOSTER ACCELERATOR

We give in the following table maximum beam energies and expected intensities for several representative ions. "Status of and Operating Experience with the University of Washington Superconducting Booster Linac," D.W. Storm et al., Nucl. Instrum. Meth. A 287, 247 (1990).

Available Energy Analyzed Beams

Ion

Max. Current

(pm A)

Max. Practical

Energy (MeV)

p

>1

35

d

>1

37

He

0.5

65

Li

0.3

94

C

0.6

170

N

0.03

198

O

0.1

220

Si

0.1

300

35Cl

0.02

358

40Ca

0.001

310

Ni

0.001

395