Veeco Evaporator

The Veeco Model VE-775 vacuum evaporator uses a CTI 6 in. cryopump which provides a cleaner and higher vacuum environment for target deposition. This system is used primarily for multiple resistive heating evaporations as well as reduction/distillation of low vapor pressure elements. The steel bell jar has been removed and replaced with a glass bell jar. An evaporation shutter has been installed as well as a high-current feedthrough, which is used with the quartz lamp substrate heater.

redustion-distillation

Photograph of experimental arrangement for the reduction-distillation of samarium onto 20g/cm2 carbon backing foils.

Listings of various targets produced showing element, thicknesses and method of production for each target.

 

Element

Thickness

Backing

Thickness

Method

 

(ug/cm2)

 

(ug/cm2)

 

 

 

 

 

 

Al

25

--

--

R

B

100

--

--

E

10B

325

Au

600

E

Be

12,000

--

--

E

40Ca

1500

--

--

R

Ca

1500

--

--

R

116Cd

500

C

50

R

155Gd

500

--

--

Ro

160Gd

500

--

--

Ro

76Ge

200

C

20

E

In

300

C

40

R

Melamine

100

C

20

R

Mg

1000

--

--

R

Mn+Co+Cu

10ea

C

20

R

142Nd

400

C

Thin

E

150Nd

1000

Au

15,000

E

Ni

6500

--

--

R

58Ni

750

Au

15

R

58Ni

50-90

C

20

R

Pb

50,000

--

--

R

Pb

300

C

40

R

206Pb

1000

C

40

R

105Pd

1000

--

--

Ro

110Pd

1000

--

--

Ro

194Pt

200

--

--

E

p-terphenyl

200-300

--

--

E

Sc, 46Ti

700

--

--

Ro

Si

200

--

--

E

28Si

20,10

C

10

E

144Sm

500

--

--

Ro

148Sm

1000

C

40

Ro

Sn

100

--

--

R

120Sn, 122Sn

1000

Pb

50,000

R

124Sn

1000

Pb

50,000

R

Ta

300,1000

--

--

Ro

Ta

300

--

--

E

130Te

1000

Pb

25,000

R

Th

1000

--

--

Ro

232Th

130,000/27,000

--

--

Ro

232Th

46,000

Au

16

Ro

ThF4

1000

C

40

R

ThF4

300

C

40

R

Ti

100-200

C

Thin

E

50Ti

1000

Pb

43,000

E

U

300

C

40

R

UF4

300

C

--

R

182W

1500

--

--

Ro

64Zn, 66Zn

500

--

--

Ro

R=resistive, E=electron beam and Ro=rolling

G.E. Thomas and J.P. Greene, Nucl. Instr. and Meth. A362 (1995) 201-204.