Fundamental Technologies

Voyager LECP Pages

Feb. 6, 1979
b Channel                       b’
100 KeV into b, Read out on b-1 disc

Input Rate Output Rate In Out

(Cycles per Second)

649

649

    

1.43K

1.43K

12.6K

12.4K

3.02K

3.00K

35.8K

34.0K

8.52K

8.40K

78.9K

68.6K

12.5K

12.2K

132K

102K

18.9K

18.3K

166K

121K

35.4K

33.4K

229K

149K

67.0K

59.2K

316K

176K

134K

103K

501K

203K

156K

113K

633K

214K

242K

151K

    

324K

174K

    

431K

190K

    

630K

206K

    

Channel A
Feb. 6, 1979

A1 One-Shot Out (J11-23)

A2 (FF Out)

A0 (¸ 8 Output FF)

Input
Rate

Output Rate

In

Out

In

Out

(kilo cycles per second)

12.6

12.5

13.7

6.8

12.6

1.61

55.1

49.7

21.8

10.6

20.9

2.69

79

68

41.5

19.7

41.0

5.42

134

102

64.4

29.7

76.9

9.93

196

146

126

54

114

14.7

256

180

175

72

177

23.5

410

254

205

83

353

51.0

676

346

326

116

499

78.8
   

456

142

678

123
   

677

178

    

Feb. 22, 1979

D1-D2

r = R/(1 + RT) Lifetime = 1 – rT

1 + RT = R/r r = R(1 – rT)

RT = R/r – 1 r = R – rRT

T = 1/r – 1/R = (R – r)/(Rr) r(1 + RT) = R

r = R/(1 + RT)

r = 100K

R = 260K

T = (260K – 100K)/((260K)(100K)) = 160K/((260)(100)KK) = 1.6/(260K) = 6.15 ms

R 1 + RT r(calc) r(act)
10K 1.062 9.42K 9.6K
20K 1.123 17.8K 18.5K
40K 1.246 32.1K 35K
80K 1.492 53.6K 58K
150K 1.922 78.1K 82K
250K 2.54 98.4K 99K
500K 4.08 123K 110K

a

r = 150K

R = 233K

T = (233-150)/((233)(150)) = 2.37 ms

R

1 + RT

r(calc)

r(act)

20K

1.0474

19.1K

19.1K

40K

1.095

36.5K

37K

80K

1.190

67.2K

68K

150K

1.36

110K

110K

250K

1.59

157K

155K

500K

2.185

229K

201K

600K

2.422

248K

210K

Feb. 22, 1979

10 mc Sr90 source from GSFC, thru G-10 cover (1/64")

A0 Read out 201 K max; could not see roll-over

A1 Read out 190 K max, could not see roll-over

Return to Voyager LECP Data Analysis Handbook Table of Contents.
Return to Fundamental Technologies Home Page.

Last modified 12/2/02, Tizby Hunt-Ward
tizby@ftecs.com
Original page by I. Robertson