ELOG AIDA

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

AIDA

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Entry time:

Wed Jan 27 14:54:48 2016

Author*:

Subject*:

MSL type BB18(DS)-1000 serial 2998-22
Bias +200V, I_L +8.110uA, ambient temperature +20.2 deg C

DSSSD - AIDA adaptor PCB cabling

4 off LH Coupler (Kapton PCB, 5cm), 2x 34-way Samtec ribbon cable (45cm), RH coupler(Kapton PCB, 10cm)
 + 3M 1245 1.4mil copper foil screen ribbon cables + RH coupler only (i.e. not LH coupler)
 + drain wires -> gold-plated Lemo-00 test input connectors

nnaida 11 & 12 AIDA adaptor PCB rev B
nnaida 13 & 14 AIDA adaptor PCB rev C (LK1 fitted)

Standard ASIC settings
 nnaida 11 & 12 - negative input
 nnaida 13 & 14 - positive input

Pulser BNC PB-5 
Fall time 1.0ms
Rate 100Hz
Delay 250ns
Ampl 5.00000V
Polarity +
Pulse top Tail
Atten 10x
Clamp ON
- polarity via Cooknell SA1 Summing Amplifier

Pulser peak width (ch FWHM) from spectra 2.*.L

nnaida11

Shaping time(us)

0.5  1   2   4   8   8**

80   83  76  82  87  82
82   84  77  82  87  83
82   80  77  82  79  75
75   77  73  77  91  87
79   81  76  78  90  88
79   81  76  80  90  85
72   77  73  83 100  98
82   81  79  88  99  94
81   81  79  86  94  96
84   84  77  86  93  94
76   87 100 325 557 828*
86   83  84 100 119 121*
83   83  82  92 108 106*
78   77  83  85 110 111*
98   81  96 105 119 123*
89   89  93 104 109 108*

81.6 81.8 81.3 82.4 91.0 88.2 mean
6.0  3.4  8.2  3.5  6.1  7.3  std dev

nnaida12

0.5  1   2   4   8   8**

72   79  70  68  65  62
77   81  74  73  70  70
81   85  77  76  70  70
66   74  64  63  62  63
73   79  71  69  63  65
75   83  73  70  64  65
65   74  65  64  63  63
70   74  68  66  65  65
73   79  69  68  64  65
78   80  76  72  67  65
61   72  61  60  61  62
69   77  68  61  63  63
74   80  71  68  66  66
64   69  63  61  61  62
74   83  72  67  58  57
75   82  72  70  62  64

71.7 78.2 69.6 67.3 64.0 64.2
5.5  4.5  4.6  4.6  3.2  3.1

nnaida13

0.5  1   2   4   8   8**

71   72  72  63  54  53
75   80  76  64  56  54
77   86  83  67  56  56
61   66  60  57  52  51
69   74  71  62  55  52
74   77  75  64  56  53
59   65  60  57  53  52
66   70  68  60  55  54
66   65  67  60  53  53
72   75  75  59  52  53
58   63  59  54  50  51
62   65  64  57  52  52
68   75  68  60  55  51
55   59  55  52  51  49
61   68  65  57  49  46
71   74  72  63  51  49

66.6 70.9 68.1 59.8 53.1 51.8
6.6  7.0  7.5  4.0  2.2  2.4

nnaida14

0.5  1   2   4   8   8**

68   76  68  64  56  54
69   76  73  48  56  51
68   77  72  66  56  53
67   75  70  66  54  52
68   77  70  57  54  49
69   77  71  66  56  53
65   76  69  65  56  55
66   75  67  65  54  54
67   76  68  65  57  53
70   79  74  67  46  48
66   76  68  64  53  53
65   75  68  64  56  54
69   77  70  66  52  56
70   81  73  69  57  54
81   96  82  74  54  50
74   84  78  71  54  52

68.9 78.3 71.3 64.8 54.4 52.6
3.9  5.3  4.0  5.8  2.7  2.2

* outlier ignored
** ground links LK3 & LK7 fitted to nnaida11-14 AIDA adaptor PCBs

electronic noise

n+n strips ~64 ch FWHM ~ 0.7 * 64 ~ 45keV FWHM
=> slow comparator threshold (5x sigma) ~ 5 * 45 / 2.355 ~ 96keV

p+n strips ~ 54 ch FWHM ~ 0.7 * 54 ~ 38keV FWHM
=> slow comparator threshold (5x sigma) ~ 5 * 38 / 2.355 ~ 81keV

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11.png Original size: 1445x1029

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14.png Original size: 1445x1029

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