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calibration_des_boards_fe_4_et_fe_2

Calibration Board 3 (FE # 4)

Resistance 100 kOhm

Pedestals

* Aucun cable d'injection connecte

  • Piste par piste , 737733
  • Tous ensemble ,737735, 737738. Tres peu de bruits, tous alignes a 361

* On allume le gene, rien de connecte

  • 737739, un pic de bruit apparait!
  • On connecte la masse du gene au plan superieur

* Des masses de partout!!!

Injection

* 500 mV 737769

canal 2 395

canal 14 390

* 200 mV 737770

canal 2 371 canal 14 370

* 150 mV 737771

canal 2 367 canal 14 366

* 120 mV 737772

canal 2 canal 14

On obtient 12.3 mV par VTH count du cote large et 14.7 mV par VTH du cote oppose

Donc entre 6 et 7 fC (facteur 2 du au partage des charges) par DAC.

Le piedestal mesure est a 362, extrapole a 355 on est sans doute pas completement lineaire a basse injection

Si on regarde le rapport des signaux transmis et proche on a

On retrouve le rapport mesure de 12.3/14.7 ~ 84 %

Etude de l'efficacite

Seuil minimal 368 ⇒ environ 7*7.3=51 fC

Injection cote large, en comptant un coup de “turn on” on s'attend a etre efficace du cote injection a

(369-355.26)/0.0814 = 169 mV

et des deux cotes a

(369-356.0)/0.0679 = 191 mV

On obtient:

run Injection(fC) N trg N 2 N 14 Eff deFF Eff XY deff XY dt (ns) RMS dt (ns)
7377851504784331513069.29 0.67 2.72 0.24-17.660.337
73778416077767707404899.11 0.1152.06 0.57-17.620.304
73778217057975794524099.95 0.0390.39 0.39-17.500.280
73778618016367163641473099.98 0.0190.00 0.23-17.660.263
737787190114141141411304100.00 0.0099.04 0.09-17.610.215
737788200141571415714147100.00 0.0099.93 0.02-17.570.204
737789250149391493914939100.00 0.00100.00 0.00-17.610.172
737790300133581335813358100.00 0.00100.00 0.00-17.570.173
737791500118941189411894100.00 0.00100.00 0.00-17.400.124
7377921000154541545415454100.00 0.00100.00 0.00-17.160.071
7377951602079220792181100.00 0.00 0.87 0.06 0.040.239
7377981701319713197654100.00 0.00 4.96 0.19 0.150.235
73779918027589275896367100.00 0.0023.08 0.25 0.120.225
73780019015538155388984100.00 0.0057.82 0.40 0.060.235
737794200139801398013449100.00 0.0096.20 0.16 0.030.190
737801210278892788927460100.00 0.0098.46 0.07-0.040.178
737802220144201442014340100.00 0.0099.45 0.06-0.180.199
737803300115821158211577100.00 0.0099.96 0.02-0.510.173
Run Injection Events Efficiency 2 cotes Resolution (ps)
737782170 2956 10090.2 278
737784160 5591 99.6 57.2 306
737785150 2152 71.7 4330
737786180 16367 100 90265
737787190 11414 100 99220
737788200 14157 100 100210
737789250 14900 100 100178
737790300 13359 100 100174
737791500 11894 100 100124
7377921000 15454 100 10069

Injection cote 14 (etroit)

Run Injection Events Efficiency 2 cotes Resolution (ps)
737794200 13980 10096.2 204
737795160 20792 1000.9 270
737798170 13197 100 5.0 267
737799180 27589 100 23.1 243
737800190 15538 100 57.8 247
737801210 27889 100 98.5 188
737802220 14340 100 99.5 207
737803300 11583 100 100 178

Delat T -17.6 et -0.5 donc 17.1=2 x dt ⇒ dt =8.6 compatible avec la mesure des pulses (8.3)

On change de piste 73

et on s'arrache la tete, le delai trigger / pulse doit etre regle a 2.5 ns pres car on peut tomber sur le temps mort du TDC….

Run 737813 , 250 fC cote etroit on n'est pas pleinement efficace des deux cotes (78 %)

737818 200 mV de l'autre cote

737819 210 mV

737820 220 mV (69 %)

On a donc quasiment 50 fC d'eccart entre les deux pistes… A comprendre est ce du a un probleme de gain ?

Resistance 150 kOhm

pedestals

  • separees all at 31

Run 737897

[329.8383850069412, 338.8306754221388, 344.2252510760402, 342.5212249848393, 349.84411239964317, 347.26503960608005, 345.5721327967807, 344.1441947565543, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 323.52208201892745, 328.007655393053, 331.68205405405405, 330.8333719046517, 330.7964367816092, 326.54009433962267, 319.96534161490683, 322.15447637140824]
 
Alignment to : 324.965341615
[29, 26, 25, 25, 23, 23, 24, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 30, 29, 29, 29, 30, 33, 32]

Run verification 737898

Pedestal centre a 327

[325.8353293413174, 326.7075669383004, 327.053392259914, 326.0224846328049, 328.6779397705545, 326.76496800731263, 329.03019970774477, 328.0180568499534, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 326.5226199353716, 327.0759254892714, 329.03002257336345, 325.8924501424501, 327.6408518877057, 325.3631103911132, 327.0556603773585, 325.9967320261438]
 
Alignment to : 330.363110391
[33, 32, 32, 32, 32, 32, 31, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 32, 31, 33, 32, 33, 32, 32]

Pedestal All together 737899

Injection piste 71 cote TDC 2
run Injection (fC) turn On 2 turn on 14
737908200349342
737907250355.5348
737903 300362353
737905 350370359.5
737904 400377366
737906 500390377

Fig. 1: Calibration FE4 resistance 150 Ohm

Etude de l'efficacité

Seuil a 343

(343-327)/0.139 =115 fC /2 ⇒ 57.5 fC par canal

run Injection(fC) N trg N 2 N 14 Eff deFF Eff XY deff XY $\Delta T $(ns) $\sigma $ dt (ns)
737910160238119897683.54 0.76 3.19 0.36-17.210.402
7379111702380230234996.72 0.3614.66 0.73-17.340.377
7379121802383237596499.66 0.1240.45 1.01-17.420.326
737913190238123811713100.00 0.0071.94 0.92-17.500.292
737914200238323832180100.00 0.0091.48 0.57-17.460.252
737915210238123812331100.00 0.0097.90 0.29-17.400.228
737916220238123812371100.00 0.0099.58 0.13-17.380.220
737917230238323832374100.00 0.0099.62 0.13-17.440.239
737918250238123812381100.00 0.00100.00 0.00-17.600.192
737919500238123812381100.00 0.00100.00 0.00-17.400.077
7379201000238223822381100.00 0.0099.96 0.04-17.460.051

Fig. 2: Efficacite en fonction de l'injection, FE4 resistance 150 Ohm, du cote de l'injection et du cote oppose

Fig. 3: Resolution en temps FE4 resistance 150 Ohm

mirabito 2017/11/26 15:40

Calibration Board 2

Resistance 100 kOhm

Pedestal

* Piste par piste

Run 737827 tous les canaux a 31 fichier PR2_TDC7_737733_Board2.json

Correction

    dac[i]=int(round(old[i]+(med-ped[i])*1./2.97))

J'ai mis un facteur 1 car je crois que le rapport a utiliser et celui que m'avait donne Nathalie

On obtient pour le PETIROC:

[526.4389607160616, 520.36827148111, 517.0154950869237, 537.4540172642762, 542.3748160863169, 535.4546346248161, 533.0708641975309, 535.0666831316374, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 516.0272040302267, 529.4941191191191, 515.4653403403404, 523.6680430430431, 524.3245158242796, 522.5375281461096, 531.0689612326044, 519.7234042553191]
 
[29, 31, 32, 25, 24, 26, 27, 26, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 28, 33, 30, 30, 30, 27, 31]

Run apres realignement 737829

[520.9286067193676, 521.4198548812665, 520.7046224588577, 520.1427212178877, 520.2083950617284, 520.3633200795229, 520.2205846528624, 520.0534304047384, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 522.8704023697852, 520.5618313013188, 522.772006827603, 520.4732377538829, 522.0271739130435, 520.8262012012012, 519.772546583851, 521.0904347826087]
 
Alignment to : 524.772546584
[32, 32, 32, 33, 33, 32, 33, 33, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 33, 32]

Avec toutes les pistes alignes 727830

On obtient :

[522.8711790393013, 521.619812583668, 521.7325301204819, 522.7821482602118, 522.7918313570487, 522.591849935317, 522.5179487179487, 523.1693766937669, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 522.5348258706467, 522.4192182410424, 522.8073566084788, 523.1639035418236, 522.8275541795666, 522.2118537200504, 522.1827284105132, 523.0398457583548]

En prenant 523 comme piedestal et 1.5 de bruit on essaie une coupure a 531 Trop bas

on met 536

Injection

737832 200 551 533
737833 250 559 533
737834 300 568.5 532
737835 350 580.6 533

On fait un essai en supprimant la 100 kOhm

Non concluant, om augmente le gain, le pedestal ~ 325, bcp de bruit (737843)

Coupure a 380 ⇒ 100 % efficacite pour 190 mV injecte

Resistance 68 kOhm

Ca ne marche pas

Resistance 150 kOhm

Pedestals piste / piste 737865

[484.5533201678598, 473.86687983843825, 467.43546365914784, 495.70765113350126, 504.15454134658836, 493.12993716337525, 489.69016239115086, 493.90647994303345, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 467.59760403530896, 487.1604968339016, 466.51782077393074, 477.57714285714286, 478.68060200668896, 476.5175438596491, 490.18785485065416, 471.2535651738804]
 
Alignment to : 471.517820774
[27, 30, 32, 23, 20, 24, 25, 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 26, 33, 29, 29, 29, 25, 31]

Run de verification 737866

Pedestal alltogether

737868

pedestal 471 , bruit < 1

On branche le cable d'injection

737869 , le bruit augmente a 1.7

Injection

Injection cote large

run Injection (mV) cote large Etroit
737872500559550
737873400541534
737874350532525
737875300522516
737876250513505.5
737877225507502
737878200502497

Fig. 4: Turn -on (DAC VTH) en fonction de l'injection

On met le seuil a 494

(494-471)/0.1845 = 125 fC /2 ⇒ 62.5 fC de seuil par canal

run Injection(fC) N trg N 2 N 14 Eff deFF Eff XY deff XY dt (ns) RMS dt (ns)
73788016077486618200785.42 0.4025.90 0.50-17.300.336
73788117041034020265197.98 0.2264.61 0.75-17.360.307
73788218051005096447699.92 0.0487.76 0.46-17.400.310
737883190482948294672100.00 0.0096.75 0.26-17.420.291
737884200336133613216100.00 0.0095.69 0.35-17.460.277
73788521032683265322799.91 0.0598.75 0.19-17.490.228
73788622034083403331399.85 0.0797.21 0.28-17.490.193
737887250309630963095100.00 0.0099.97 0.03-17.520.203

On des burst de bruits…. ce qui explique les fluctuations

Si on met le seuil a 496 et 200 mV

run Injection(fC) N trg N 2 N 14 Eff deFF Eff XY deff XY dt (ns) RMS dt (ns)
737892210309530953034100.00 0.0098.03 0.25-17.450.288
737888200309330933008100.00 0.0097.25 0.29-17.460.298
73788919030943092271899.94 0.0587.85 0.59-17.390.316
73789018030943041204098.29 0.2365.93 0.85-17.370.308
7378911703097261169984.31 0.6522.57 0.75-17.310.347

Fig. 5: Efficacite de detectiron du cote de l'injection (orange) et oppose (bleu)

Resolution la plus mauvaise observee ~ 0.3/8.6 ⇒ 5 cm

Su la figure 5 on observe:

  • Seuil minimal de detection electronique ⇒ 90 fC, Q injected 180 fC
  • Seuil minimal de mesure X,Y Q injected 200 fC

Les résultats sont quasiment identiques à ceux mesurés avec le Board 3 (FE #4)

mirabito 2017/11/23 06:35DAQ user 2017/11/27 12:12

calibration_des_boards_fe_4_et_fe_2.txt · Dernière modification: 2017/11/27 18:44 par DAQ user