Update on 50um Timepix Assemblies and Sensor Procurement Mathieu Benoit
Introduction We received 7 Advacam 50um sensor assemblies last week First results shown so instability of the sensor (bias voltage needed to be operational drifted with time) – After resting the sensor for 48h, changing to a k2410 for biasing, everything seems back to normal – Full depletion at 15V, stable over a weekend taking Fe55 data
Depletion Study : C04-W0110 Problem : Baseline move quite a lot as we ramp bias voltage to the sensor, causing zone with very noisy pixel masking the data if not tuned correctly Solution : We performed tuning at each bias point and try to « save » as many pixel as possible
IV Curve
Equalization 6V 33289pixel masked Mean adj0 : 559 Mean adjM : 346 Mean Equal : 452 Std.dev adj0 : 32 Std.dev adjM : 27 Std.dev eq : 10.9
Equalization 6V Masked THL
Equalization 6V (Fe55, 60s exposition) No Source Fe55
Equalization 6V (Sr90, 60s exposition) No Source Fe55
Equalization 8V pixel masked Mean adj0 : 575 Mean adjM : 366 Mean Equal : 452 Std.dev adj0 : 29 Std.dev adjM : 25 Std.dev eq : 9.2
Equalization 8V Masked THL
Equalization 8V (Fe55, 60s exposition) No Source Fe55
Equalization 8V (Sr90, 60s exposition) No Source Fe55
Equalization 10V pixel masked Mean adj0 : 587 Mean adjM : 382 Mean Equal : 470 Std.dev adj0 : 36 Std.dev adjM : 32 Std.dev eq : 10
Equalization 10V Masked THL
Equalization 10V (Fe55, 60s exposition) No Source Fe55
Equalization 10V (Sr90, 60s exposition) No Source Fe55
Equalization 12V pixel masked 4459 Mean adj0 : 451 Mean adjM : 396 Mean Equal : 422 Std.dev adj0 : 20 Std.dev adjM : 17.9 Std.dev eq : 7.17
Equalization 12V Masked THL
Equalization 12V (Fe55, 60s exposition) No Source Fe55
Equalization 12V (Sr90, 10s exposition) No Source Fe55
Equalization 13V pixel masked 4460 Mean adj0 : 459 Mean adjM : 404 Mean Equal : 431 Std.dev adj0 : 9.3 Std.dev adjM : 9.6 Std.dev eq : 2.8
Equalization 13V Masked THL
Equalization 13V (Fe55, 60s exposition) No Source Fe55
Equalization 13V (Sr90, 10s exposition) No Source Fe55
Equalization 14V pixel masked : 4460 Mean adj0 : 457 Mean adjM : 405 Mean Equal : 430 Std.dev adj0 : 9.3 Std.dev adjM : 9 Std.dev eq : 2.7
Equalization 14V Masked THL
Equalization 14V (Fe55, 60s exposition) No Source Fe55
Equalization 14V (Sr90, 10s exposition) No Source Fe55
Equalization 15V pixel masked 261 Mean adj0 : Mean adjM : Mean Equal : Std.dev adj0 : 9.3 Std.dev adjM : 9.3 Std.dev eq : 2.372
Equalization 15V Masked THL
Equalization 15V (Fe55, 60s exposition) No Source Fe55
Equalization 15V (Sr90, 10s exposition) No Source Fe55
Equalization 6V (Fe55, 60s exposition) No Source Fe55
Equalization 8V (Fe55, 60s exposition) No Source Fe55
Equalization 10V (Fe55, 60s exposition) No Source Fe55
Equalization 12V (Fe55, 60s exposition) No Source Fe55
Equalization 13V (Fe55, 60s exposition) No Source Fe55
Equalization 14V (Fe55, 60s exposition) No Source Fe55
Equalization 15V (Fe55, 60s exposition) No Source Fe55
Equalization 6V (Sr90, 60s exposition) No Source Fe55
Equalization 8V (Sr90, 60s exposition) No Source Fe55
Equalization 10V (Sr90, 60s exposition) No Source Fe55
Equalization 12V (Sr90, 10s exposition) No Source Fe55
Equalization 13V (Sr90, 10s exposition) No Source Fe55
Equalization 15V (Sr90, 10s exposition) No Source Fe55
Depletion (Sr90 Ikrum=1 9.6MHz) 4V
Depletion (Sr90 Ikrum=1 9.6MHz) 6V
Depletion (Sr90 Ikrum=1 9.6MHz) 8V
Depletion (Sr90 Ikrum=1 9.6MHz) 10V
Depletion (Sr90 Ikrum=1 9.6MHz) 12V
Depletion (Sr90 Ikrum=1 9.6MHz) 14V
Depletion (Sr90 Ikrum=1 9.6MHz) 16V
Depletion (Sr90 Ikrum=1 9.6MHz) 25V
Depletion (Fe55 Ikrum=1 9.6MHz) 4V
Depletion (Sr90 Ikrum=1 9.6MHz) 6V
Depletion (Fe55 Ikrum=1 9.6MHz) 8V
Depletion (Fe55 Ikrum=1 9.6MHz) 10V
Depletion (Fe55 Ikrum=1 9.6MHz) 12V
Depletion (Fe55 Ikrum=1 9.6MHz) 14V
Depletion (Fe55 Ikrum=1 9.6MHz) 16V
Depletion (Fe55 Ikrum=1 9.6MHz) 25V
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