DETECTORS

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DETECTORS
MAXIPIX Pixel detectorXMAP Multi-Element
detector

• Presented by E.Papillon

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MAXIPIX Multichip Area detector for Xray
Imaging based on a photon-counting PIXel array

• Array of 5 Medipix2 chips with fast parallel
  readout
• One chip is
• 256x256 pixels
• Pixel size of 55x55 um2
• Active area of 2 cm2
• Short readout time 290 us
• 1 MHz count rate
• 13 bit counters (max11810)
• Current fastest medipix2 readout system 509
  frames/sec.

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MAXIPIX ESPIA / PRIAM control
Espia serial mode Medipix2 configuration /
control Espia paralell mode image readout
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PRIAM Parallel Readout Image Acquisition for
Medipix

• simultaneous readout of up to 5 Medipix2 chips
• 1 kHz frame rate with less than 50 dead time
• Medipix2 readout using either parallel or serial
  mode
• on-line decoding of the pixel counters pseudocode
• optional on-line deadtime/flatfield corrections
• external triggering modes with µs resolution
• access to all Medipix2 features

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MAXIPIX Software

• Low level
• Common ESPIA driver
• Common ccd library (C)
• Medipix specific library (configuration using
  serial link)
• User level
• CCD Device Server and standard SPEC macros
• Configuration/Test graphical tool (PyQt)

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MAXIPIX Status

• Working system with single chip
• Acquire images at 1400 Hz sustrained frame rate
  for an exposure time of 0.4 ms/frame
• Tests performed using python test scripts.
• Still work on multichip control, chip board,
  software

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XMAP Digital X-ray Processor for multi-element
detectors

• Description
• PXI board with 4 channels
• Control up to 8 boards through PXI/PCI bus
  coupler
• 4 MB high speed memory / board
• External signal for gate / synchronization
• Features
• Spectrums of 256-16384 bins (32 or 16 bits deep)
• Run statistics livetime, ICR, OCR
• Peaking time from 0.1 to 100 us
• Max OCR about 1 Mcps
• Full software configuration

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XMAP Beamline installation
NI PXI/PCI bus coupler
WinXP PC NI MXI3 drivers XMAP drivers xManager
software TACO device server
Optic fiber link
SPEC xia2x.mac Saves EDF files Spectrum one
file / detector elt Statistics one file /
all ROI, SUM, Stat counters Python
tools Xiacorrect, xiaconvert, xiastat
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XMAP Configuration
xManager
Save configuration files
WinXP
Load configuration file
TACO device server Startup configuration C\blis
sadm\xia\xmap.ini
Access to DSP parameters from macros for debug
purposes
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XMAP Zap mode
Beamline workstation
WinXP PC

• TACO device server
• Buffer management
• Save EDF files
• Spectrums one file / detector
• Statistics one file / all detectors

• ZAP macros (zapxmap.mac)
• zapxmapconfig
• zapxmapon/off
• Online ROI display
• Save ROI as any other zap counter

VCT6 GateOut
OPIOM I4 O5
XMAP Gate (master only)
Acquisition time / point down to 5 ms.
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XMAP Performance
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A Demonstration Presentation Version 0.1
(19/08/03) Group Demo Group
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XMAP
Standard mode
Mapping mode
A Demonstration Presentation Version 0.1
(19/08/03) Group Demo Group
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XMAP
Standard mode
Mapping mode
A Demonstration Presentation Version 0.1
(19/08/03) Group Demo Group
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XMAP
Standard mode
A Demonstration Presentation Version 0.1
(19/08/03) Group Demo Group
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PRIAM