After irradiation
Micron baby stack after gamma irrdiation HV = -100 V I = -58 uA
xy-table: x=319.4, y=74.6 beam hits APV0
xy-table: x=319.4, y=87.6 beam hits APV1
Belle stack 2 after irradiation
HV = +50V -50V
I = 112 µA
CO2 cooling
Belle stack 2 after gamma irrdiation HV = +50V -50 V I = 102 uA CO2 cooling
Belle stack 2 after gamma irradiation
I = 101 uA
Bias currents absolutely stable during the whole run.
hitting APV3 (n side) = wide side of wedge sensor
hitting APV2 (n side) = center of wedge sensor
Temperatur sensors:
Micron Baby stack 2 after irradiation (intermediate strips) HV = -100 V I = 33 uA
Micron Baby stack 2 after irradiation (intermediate strips) HV = -100 V I = 36.3 uA
Position APV0 of all sensors
X-Y Table coordinates: X=0 / Y=-1 (afterwards: nulled)
PC power cut after ~100k events
Micron Baby stack 2 after irradiation (intermediate strips) HV = -100 V I = 39 uA
DESY table shifted by 2.5mm (beam down) after beam profile was changed (to get higher intensity)
beam hitting lower APVs
Micron Baby stack 2 after irradiation (intermediate strips) HV = -100 V I = 36 uA
beam hitting higher APVs
Stopped when long beam off period was announced
Infineon stack Version 2 after irradiation HV = +300 V I = 137 A
Infineon stack Version 2 after irradiation HV = +300 V I = 162 A
hitting upper part of strixels and baby, vertically ~centered
HPK baby stack after irradiation with partial cooling (HPK neutron & HPK neutron/gamma) HV = +75 Vm -75V I = 226A
Temp sensors configuration:
11 HPK Neutron n in
12 HPK Neutron n -> p
13 ----
14 HPK Neutron p -> Gamma p
15 Gamma p -> n
16 Neutron Gamma n out
HPK baby stack after irradiation with partial cooling (HPK neutron & HPK neutron/gamma) HV = +75 V -75V I = 176A positioned centered on p and n
Perfect cooling curve :-)
Turned off cooling, now taking warm data
HPK baby stack after irradiation - no cooling I = 200A and growing (warming up) positioned centered on p and n
HPK baby stack after irradiation - no cooling I = 420A and growing (warming up) positioned centered on p and n
Cooling for 2DSSD established after some struggle.
2DSSD fully read out with cooling HV= +40 V -40 V I = 2 uA Beam position: none
Positions of thermal sensors:
11 Kapillare Anfang
12 Kapillare Ende
13 ---
14 unmittelbar nach Kapillare
15 Origami in
16 Origami out
17 Origami -z
18 Origami CE
Strip order:
n-Seite: rechts (Salev) nach links (Jura)
p-Seite: oben nach unten
APV chips with lower noise:
-z ce p-side #5 #10 (= pos 4) n-side #13 (= pos1) #19 (= pos 3)
2DSSD fully read out with cooling HV= +40 V -40 V I = 2.1 uA Beam position: Origami -z p-side: APV #5 n-side: APV #13 (= pos.1 of -z)
2DSSD fully read out with cooling HV= +40 V -40 V I = 1.84 uA
Beam position: Origami ce: p-side: APV #10 (= pos 4) n-side: APV #19 (= pos 3)