TCT Setup




TCT Data Aquisition

TCT Data Analysis



Update for Windows 10

Particulars software download page

Particulars Setup

Homepage of Particulars: http://www.particulars.si/ additional informations / manuals / software can be accessed via this homepage

ScanTCT_Install.pdf: Installation Manual

Peltier

  • max. 15.4 V and 8.5 A

Mounting plane attached to Peltier element.

http://www.particulars.si/downloads/Particulars-MountingPlane.pdf

Laser

Combine laser head and driver in the single housing
  • optics system preinstalled: iris, lens, beam expander, collimator, fibre connector
  • focal distance of optics system: 8.4 - 8.5 cm
  • short pulses (350 - 400 ps) with puls energy corresponding to ~ 1000 MIP
  • LA-01 IR; 1060 nm, 100mW
  • pulse width: 100% = threshold at the output stage is at the limit of operation
    • 100% narrowest possible pulse (also low intensity) (3.3V from DAC)
    • 10% very wide and intense pulse

Bias-T

BT-01
  • max applied voltage: 1-2 kV
  • leakage: <500 nA @ 1 kV
  • frequency range: lower end <100 kHz; hi end >2000 mHz
  • input/output impedance: ~50 ohm / ~50 ohm

Amplifier

AM-01 A
  • bias voltage: 6-15 V
  • amplification: 35dB, 53dB
  • frequency range: 0.01 - 2000 MHz
  • input/output impedance: ~50 ohm / ~50 ohm

Motion Stage

  • X, Y, Z stage with range from 0 to 52000 um



Additional Equipment

PC

  • Windows PC:

Standard HEP Case, PSU and motherboard
16 GB Memory i7-3770 3.4GHz QuadCore CPU
2TB WD Hard drive 250 GB SSD
GT640 2GB  
Microsoft keyboard+Mouse DVD-RW
Asus 27" monitor http://www.asus.com/Monitors_Projectors/MX279H/
Cost £938.00 including delivery (+VAT).

USB ports: There are 6 onboard, and 2 in the case (checking the correct cable for the case ports). The system is based on our standard HEP desktop build which supports MWS7 and HEP Scientific Linux 6 if required.

  • need LabView V10 or higher and Microsoft Visual C++ VS 2008
    • both provided in managed Windows of the University (MWS)

Managed Windows hints

  • change power settings:
    • 'Set Power-saving level' in 'Install University Applications'

Oscilloscope

  • required:
    • driver for LeCroy, Textronix
    • communication over GPIB
    • 4 channel, 1GHz, 5 GS/s

DRS evaluation board

  • recommended: 4 channel, 1GHz, 5 GS/s digitization board from PSI (http://www.psi.ch/drs/evaluation-board)
    • Four 50-Ohm terminated input channels with SMA connectors.
    • Active input buffers which result in an analog bandwidth of 700 MHz (-3dB).
    • High bandwidth analog switches for internal voltage calibration.
    • Precision clock for internal timing calibration, reaching a precision of a few pico seconds.
    • One DRS4 chip, capable of sampling the four input signals simultaneously from 0.7 GSPS to 5 GSPS with 1024 sampling points each.
    • One AD9245 ADC to digitize signals from the DRS4 chip.
    • One Xilinx Spartan 3 FPGA for readout control.
    • A 16-bit DAC to generate all on-board control voltages.
    • A serial EEPROM containing serial number and calibration information.
    • Internal trigger with user-defined thresholds on any of the four channes.
    • Triggering on combinations of the four channels (AND/OR) for coincidence measurements.
    • An external trigger input (TTL input 50 Ohm terminated) with a MCX connector.
    • Clock input and output connectors (MCX) for synchronizing several evaluation boards.
    • A USB 2.0 interface for data readout. This interface also powers this board. The maximum readout rate is about 500 events per second.
    • Several headers for debugging of all important control signals with an oscilloscipe or logic analyzer.
    • DRS4_manual_rev50.pdf: Evaluation Board Manual
    • DRS4_rev09.pdf: DRS4 chip specifications
    • offer: 900EUR

  • from manual:
    • sampling speed up to 5 GSPS and 1024 sampling points
    • SMA connectors for 4 input channels, MCX connectors for triggering and clokc synchronization, powered through USB
    • inputs AC coupled and input range of 1V peak-to-peak
    • maximum allowed input voltage:
      • DC: +- 10 V
      • Long pulse (<2us): +- 20 V
      • Short pulse (<200ns): +- 30 V
    • USB 2.0 bus allows data transfer rates of more than 20 MB/sec

O/E Converter

  • TTI Model TIA-950 O/E Converter
    • TIA950Manualforscreen.pdf: TIA-950 Manual
    • InGaAS (900-1700nm)
    • Post amplifier gain: 1.0, 10.0 selsctable
    • Max. linear input power: >0.8mW
    • Max. input power without damage: 10mW
    • Bandwidth (-3dB): DC to 750 MHz at gain of 1.0, DC to 250 MHz at gain of 10.0
    • Output impedance: 50 ohms
    • Output connector: BNC
    • Fibre optic input connector: FC
    • Input numerical aperture: 0.29
    • Interstage coupling: AC or DC (100Hz frequency cut off)
    • Output offset voltage: < +/- 0.75 V at max. gain
    • Max. output voltage: 2 V pk-pk, no load, 1V pk-pk with 50 ohm load
    • Noise level: 3 pW/Hz^1/2
    • Power required: 9 V battery powers the unit for approx. 30 hrs (no load)

Amplifier Power

  • TTi PL310
    • 32V - 1A PSU

High Voltage

  • Keithley 2410 1100V SourceMeter
    • GPIB / RS-232 connector
  • GPIB to USB convertor

PID

PID settings

PID CERN FreiburgSorted descending Default
Integral Value Limit 100% 100% 100%
Max Power 100% 100% 100%
kP 6.31 30 20
kD 4 20 5
Dead band 3% 3% 3%
Lowpass Tr 2 2 2
Lowpass Te 3 2 3
kI 0.012 1 2
Cooling Gain 1 1 1
Heating Gain 1 0.5 1
Decay when stopped 0.1 0.1 0.1

Peltier Power

PCB

  • to place sensor

Liverpool 1

  • two versions designed by Ilya Tsurin; 4 each produced (£123.00 including delivery and VAT):

Version 1: single layer Version 2: vias to sensor backplane for better heat transfer
DUT CTE board V1.png DUT CTE board V2.png
PCB Version 1 PCB Version 2

PCB-V2.jpg

PCB-V2.jpg: Populated PCB (V2.0)

DESY

Designed at DESY for the measurements of diodes and strip sensors.

Liverpool 2

Designed at Liverpool by Samuel Powell for measuring HV-CMOS sensors. The PCB fits the particulars cold chuck mount.

Mechanical changes to setup

For edge TCT measurements a 90 degree angle mount was designed, which allows to mount the cold chuck so that the laser hits the sensor edge. Because of the additional height difference to the laser line, a base plate for lifting the laser was designed as well. This plate has to be placed under the motion stage plate for the laser optics and should be screwed to the bottom of the box. The angle mount can be screwed to the motion stage instead of the '3UBP - Universal Base Plate'



Required equipment

Chiller

  • should be USB controllable
  • -40C ... ~+40C

  • Liverpool Clean room (other set-ups)
    • Thermo NESLAB RTE 740
    • Julabo F32
  • CERN
    • Huber CC 505
    • Huber Unichiller

Cold Block

Mounting Plane screwed to cold block with Peltier inbetween.

Nylon screw for cold block connection better than metal screw; use Screw Insulator to isolate screw from aluminium (necessary for metal screw).

Cables / Connectors

SMA.jpgSMA genders

SMA-and-TNC-Connector1.jpgSMA genders 2

Sensor polishing

  • 2 bars to hold sensor during polishing process (CERN: teflon); bar width: 2 cm to clamp sensors which are larger than 1 cm. Use old silicon as distance holder (glued with Kapton inbetween bars).
  • cotton bud (for polishing)

Remote Control

Teamviewer

Number: 110 434 409
Personal Password: same as for 'anlg'

Tight VNC

WIN764-269292R .livad.liv.ac.uk
Password: same as for 'anlg'

Additional Recources (other Institutes)

Software

PID controller with LabView and TRACS simultion software from CERN SSD group:
https://twiki.cern.ch/twiki/bin/view/SolidStateDetectors/SolidStateDetectorsSoftware

Weightfield2 simulation software:
http://personalpages.to.infn.it/~cartigli/Weightfield2/Main.html

KDetSim simulation software:
http://www-f9.ijs.si/~gregor/KDetSim/

Workshops:

1st TCT workshop at DESY (05-06/10/2015)
https://indico.desy.de/conferenceDisplay.py?confId=12934

-- SvenWonsak - 17 Sep 2014

Topic revision: r56 - 31 Mar 2022, SvenWonsak
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