Fundamental Technologies

Voyager LECP Pages

December 5, 1978

Dr. Thomas P. Armstrong
Department of Physics
University of Kansas
Lawrence, KS 66045

Dear Tom:

Enclosed are copies of the rate tests so far completed on the LECP SN-02. We have yet to do rate tests for D2/D3, D3/D4, D4/D5 coincidences for LEPT. I believe you have copies of the LEMPA rate tests we did with the random pulser.

I'll try and get you the rest of the rate test results very shortly.

Sincerely,

J. W. Kohl

D1A - D2

Figure

Pulser
Input
(KHz)

 Ch1 Ch3 Ch4 Ch5 Ch1 Ch3 Ch4 Ch5

S
(KHz)

(cnts/3 sec)

(KHz)
1.08 0 3136 1 0 0 1.05 0 0 1.05
2.13 20 6144 9 0 .006 2.05 .003 0 2.06
3.90 38 11003 42 0 .013 3.67 .014 0 3.70
5.96 67 16384 90 0 .022 5.46 .030 0 5.51
8.13 70 22528 190 1 .023 7.51 .063 0 7.60
12.4 340 32768 450 1 .113 10.9 .15 0 11.2
20.1 250 51200 1200 2 .083 17.1 .40 0 17.6
39.8 620 86016 4550 19 .207 28.7 1.52 .006 30.4
60.4 1000 112640 9980 50 .333 37.5 3.33 .017 41.2
80.7 1450 130000 16800 100 .483 43.3 5.60 .033 49.4
122 2400 139264 32768 310 .800 46.4 10.9 .103 58.2
203 4000 124928 67584 1200 1.33 41.6 22.5 .400 65.8
389 15000 47000 94200 3520 5.0 15.7 31.4 1.17 49.9
484 3700 23000 81900 3200 1.23 7.67 27.3 1.07 37.3
303 4800 77800 100350 3600 1.60 25.9 33.5 1.20 62.2

D1B - D2

Figure

Pulser
Input
(KHz)

 Ch1 Ch3 Ch4 Ch5 Ch1 Ch3 Ch4 Ch5 S

(cnts/3 sec)

(KHz)
1.02 0 2944 4 0 0 .981 .001 0 .982
2.00 2 5760 12 0 .001 1.92 .004 0 1.93
3.83 7 11008 52 0 .002 3.67 .017 0 3.69
5.92 17 16384 110 0 .006 5.46 .037 0 5.50
8.03 30 22528 210 1 .010 7.51 .070 0 7.59
12.5 66 33792 490 3 .022 11.3 .163 .001 11.5
20.8 168 53248 1376 9 .056 17.7 .459 .003 18.2
40.5 520 90112 4992 38 .173 30.0 1.66 .013 31.8
60.7 980 118784 10496 95 .327 39.6 3.50 .032 43.5
80.4 1400 133000 17408 180 .467 44.3 5.80 .060 50.6
123.3 2400 147456 34816 600 .800 49.2 11.6 .200 61.8
201.4 4100 135168 71680 2300 1.37 45.1 23.9 .767 71.1
297.2 5100 86016 102400 4992 1.70 28.7 34.1 1.66 66.2
399.8 4750 44032 102400 5900 1.58 14.7 34.1 1.97 52.4
497.6 3800 24300 86030 4736 1.27 8.10 28.7 1.58 39.7

D1C - D2

Figure

Pulser
Input
(KHz)

 Ch32 Ch33 Ch34 Ch35 Ch36 Ch32 Ch33 Ch34 Ch35 Ch36

(cnts/3 sec)

(KHz)
1.30 180 3500 74 0 0 .06 1.17 .025       
2.09 275 5500 110 0 0 .092 1.83 .037    
4.01 540 10496 212 0   .180 3.50 .071    
6.01 896 15872 272 0   .299 5.29 .091    
8.00 1340 18944 624 0   .447 6.31 .208    
10.5 1880 24576 976 0   .627 8.19 .325    
19.6 4410 39936 2270 2   1.47 13.3 .757 0  
39.3 10400 60416 6784 13   3.47 20.1 2.26 .004  
60.3 15616 69632 13056 49   5.21 23.2 4.35 .016  
80.0 18432 71680 19456 100   6.14 23.9 6.47 .033  
116 20992 67584 30720 272   7.00 22.5 10.2 .091  
204 18432 53248 47100 848   6.14 17.7 15.7 .283  
302 14336 45056 50176 1728   4.78 15.0 16.7 .576  
407 12032 38912 49152 2700   4.01 13.0 16.4 .900  
614 8192 25000 37888 4400   2.73 8.3 12.6 1.47  

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Last modified 12/2/02, Tizby Hunt-Ward
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