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Integrated Detector Electronics ASCompany, Heritage and technologyPresented to the European Spallation Source, ESS, February 11 2014Gunnar Maehlum, General Manager, gunnar.maehlum@ideas.no

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Company history• Founded in 1992 under the name IDE AS

as a spin-off from Norway's high energy physics activities at CERN.

• World leader in design of gamma ray detector systems.

• Current systems used in medicine, biology, astrophysics and high energy physics applications.

• 14 employees from 8 different countries, 3 PhDs, 10 master degrees.

• Located at Fornebu near Oslo

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At Fornebu

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Fornebu 5km from Oslo

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The staff2 Ph.D. Physicists with High Energy Physics background

1 Ph.D. Electronics engineer, digital systems.

5 M.Sc Integrated Circuit Designers.

4 M.Sc Electronic design Engineers.

1 Electronic Design/Validation engineer

1 Technician.

1 M.Sc. Senior Accountant.

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Product development• More than 100 different designs of

integrated circuits for high energy, nuclear and astrophysics research.

• Biomolex microarray imager• uCAM gamma camera• LumaGEM Molecular Breast Imaging camera• Spectroscopic photon counting

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Cadmium Zinc Telluride detector module• Optimized for gamma ray detection• Version a: 25-350keV

Version b: 50-700keV• 25.6 x 25.6mm2

• Pixel size 1.6x16mm2 • Gamma Energy resolution better than 5%

FWHM @ 140keV• Up to 100k photons/s• Approved for use on the International Space

Station (Atmosphere Space Interaction Monitor, University of Bergen)

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Data aquisisiton• Right : Data acquisition card used in a

gamma camera for medical diagnostics. Reads 12280 CZT pixels for gamma ray spectroscopic imaging in a camera for medical use.

• Left: self contained R/O for multi-anode photomultiplier tube.

• We develop customized solution for use with our ASICs including embedded processors and systems.

• Interface to communication protocols (Ethernet, Spacewire, Modbus etc.).

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Medical use gamma camera• Based on pixellated Cadmium Zinc

Telluride detectors, 12280 pixels (channels) Sensitive area: 205x154mm

• Energy resolution better than 5% at 140keV

• Power consumption: 15W (1.2mW/channel)

• We have delivered about 500k channels of readout for these cameras

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Molecular Breast imaging

• Breast cancer is the second most common cancer in women in the US, after skin cancer

• Works by injecting gamma emitting Tc99m and imaging gamma rays from possible tumors.

• Very high sensitivity and specificity

20 mm cancer seen on MMG & MBI

Additional 10 mm cancer seen only on

MBI

Courtesy of Dr. Michael O’Connor. Mayo Clinic, Rochester USA

Molecular Breast Imaging

Mammogram

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Prototype Cardiology camera

Heart x-section from from patient

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SWIFT

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• Observation of gamma ray bursts.

• Equipped with optical and x-ray telescope in addition to the Burst Alert Telesope

• CdZnTe and Ideas XA1.2 • in orbit November 2004

Image: NASA

Image: NASA

AMS2 on ISS

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The Alpha Magnetic Spectrometer on the ISS:

We delivered about 2000 ASICs for the readout of the silicon charged particle tracker. In total several 10000 channels of preamplifiers. The experiment is visible above the truss on ISS. In orbit operation since summer 2011

Image: NASA

Astrophysics and space weather

The PLAsma and SupraThermal Ion Composition (PLASTIC) experiment on the STEREO mission. IDEAS delivered ASIC for read out of detectors of the spectrometer. Launched 2006

SuperAGILE an X-ray monitor of AGILE, by the Italian Space Agency (ASI) devoted to observations for astrophysics in the gamma ray energy range 30 MeV-50 GeV.

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Modular X- and gamma ray sensor (MXGS) on the Atmosphere Space Interaction Monitor (ASIM)

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Study x-rays emitted from high altitude phenomena in the atmosphere

• Gamma ray spectrometer for the range 20-400keV using Cadmium Zinc Telluride detectors.

• IDEAS delivers detector readout modules to the University of Bergen that will build the spectrometer MXGS

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Modular X- and gamma ray sensor (MXGS)

Slides courtesy of University of Bergen

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CZT Detector array• 100 modules • A total of 25600 pixels• Pixels 2.5x2.5mm• Space qualified R/O system designed by the

University of Bergen• To be attached to the Columbus module on the

International Space Station

Slide courtesy of University of Bergen

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IC and circuit technology• Electromagnetic Radiation tolerant by

process (TID).• Single Event Effects (Latch-up and Upset)

tolerant by design• Triple redundant logic design.• Error Detection and Correction SRAM.• On-chip ADCs and control processor.• On-chip voltage regulators available.

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ROIC architecture

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ADCDigitized output

Analog memory

Analog output

Timing outputTDC

Trigger processin

g

counters

Timing output

Counter output

Analog signal

processing

Analog memory

Analog signal

processing

Analog memory

Analog signal

processing

32-128 inputs/channels typically

Configuration memory

External trigger &

clock

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Pipeline architecture

Analog memory 1Analog memory 2

Analog memory N

Trigger and control

1

N

Trigger out

Analog out

ADC

Digital out

• The preamp is sampled at 100MHz into a ring-buffer. On-board trigger and control let the user select which data is to be output. The analog pre-prosessing greatly recudes system power consumption

• 121channel version available off-the-shelf. • Optionally a 12 bit SAR ADC can be added to the ASIC.

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System on-a-chip, R/O of focal plane array

Digital processing

and memory

ADC

SPI

Voltage regulatorsFo

cal p

lan

e a

rray (M

CT)

• Radiation hardened by design

• Triple redundancy• Operation from 77K to

450K • Voltage input

preamplifier• 12bit 3Msps ADC• To reach ESA TRL4• Path to TRL7 and

higher planned.

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Off-the-Shelf, days to a couple of weeks

Define specs

Identify product RFQ P/O Receive

Work flows

Define project scope

• General specifications

• Costing• Quote/PO

Define detailed specs

• Preliminary data sheet

• Preliminary Design review (PDR)

Implementation

• Schematic entry

• Simulations• Verification• Critical

Design Review (CDR)

Manufacture and validation

• ASIC validation report

• HW deliveries

Custom development (6-18months). Cost is strongly dependent of level of verification and validation required.

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Applicable standardsStrongly dependent of the application requirment. Tayloring of standards can reduce cost of compliance.We have worked to: MIL-STD 883 test method standard for microcircuits IEC 60601 electric safety ESA ECSS Space product assurance:

• ECSS-Q-ST-60-02C ASIC and FPGA development • ECSS-M-ST-10C Project planning and implementation• ECSS-Q-20 Space product assurance - Quality assurance• ECSS-Q-ST-30-02 Space product assurance – Failure Mode, effects

(and criticality) analysis (FMEA/FMECA)“• And others from the ECSS series

We are prepared to work accordign to other standards such as i.e. IEC 61508

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Test and validationIn-house lab facilities

• Manual wire bonder for prototyping..

• Manual probe station.

• Electronic test equipment, oscilloscopes, signal generators,programmable power supplies.

• Temperature test chamber covering -65 to + 180degC.

• Temperature controllable cryogenic test dewar covering 77K to room temperature.

• Radiactive sources (Am241, Co57, Na22 and other).

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Thank you

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