Fundamental Technologies

Voyager LECP Pages

Detector Identification and Characteristics

UNIT: S/N-2, Voyager 2; DATE: 27 June 1977
SUBSYSTEM: LEPT

Detector

Thickness (micrometers)

    
Serial
Number		   Avg Max Min

Resolution
(keV)

 Active Area (mm2)
16-114A D1A (E1A) 4.60 4.89 4.18   55.0
16-409B D1B (E1B) 4.37 4.67 4.08   54.0
16-523B D1C (E0) 2.63 3.0 2.44   21.9
14-676B D2 (E2) 152.8 154.0 148.8 33.5 817
1941 D3 (E3) 2433     39.0 858
1945 D4 (E4) 2452     40.0 848
17-126A D5 (E5) 105.65 106.5 105.2 37.0 831

Electronic (Pulser/Calibrator Thresholds)

Channel Nominal
(MeV)		 Voyager 1 Measured (MeV) Voyager 2 Measured (MeV)
D1 0.1    
D1A 0.1 .184 .214
D1F1 0.6 .749 .675
D1F2 1.9 1.93 1.77
D1B 0.1 .198 .211
D1C 0.1 .204 .305
E1 0.1 .287/.182 .329 (180)
E0A 0.3 .402 .384
E0B 0.65 1.15 .664
E0C 1.45 2.51 1.38
E1A 1.45 1.93 1.87
E0D   5.63 3.00
E1B 3.0 4.28 4.42
E1C 10.0 10.7 10.7
E2 0.1 .166 .136
E2A 1.2 1.49 1.25
E2B 5.5 6.65 5.07
E2C 80.0 87.7 71.5
E3 0.3 .352 .318
E3A 2.05 2.16 2.05
E3B 6.0 22.8 17.5
E3C 22.0 4.43 3.93
E4 0.3 .340 .318
E4A 2.05 2.26 2.08
E4B 110.0 117 85.0
E4C 950.0 760 892
E5 0.05 .167 .151
E5A 0.1 .186 .181
E5B 0.5 .562 .584
E5C 0.9 20.2 15.9
E5D 165.0 190 139
A1 0.3 .306 .310
A2 0.3 .320 .305
L12A 0.3 .39 .31
L12B 2.0 .21 3.0
L12C 22.0 24.7 25
L23A 60 88 52
L23B 320 555 420
L23C 1990 2460 1670
L54A 4 4.5 4.8
L54B 62 73 72
L54C 320 325 230
L54D 1990 2330 1470

 

 

Double Pulse
Resolving Time
D1A 3.5 ms
D1F 600 ns
D1B 3.5 ms
D1C 3.5 ms
D2 3.5 ms
D3 3.5 ms
D4 3.5 ms
D5 3.5 ms

 

  Coincidence
Resolving Time
D1A D2 (D3) 1 ms
D1B D2 (D3) 1 ms
D1C D2 (D3) 1 ms
D2 D3 (D4) 1 ms
D5 D4 (D3) 1 ms
D5 D4 D3 (D2) not tested
D5 D4 D3 D2 not tested
D4 D3 1 ms

 

Voyager 1 Alpha

Level Value (keV)
a10 14/29
a11 31
12 63
3 124
4 200
20 550
1 1.05
2 2.0
3 3.93
4 7.13
b0 15/26
1 34
2 67
3 121
4 190

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

Last modified 4/11/05, Tizby Hunt-Ward
tizby@ftecs.com