Performance of a 128 Channel counting mode ASIC for direct X-ray imaging A 128 channel counting ASIC has been developed for direct X-ray imaging purposes.

Slides:



Advertisements
Similar presentations
STAR Pixel Detector Phase-1 testing. 22 Testing interrupted LBNL-IPHC 06/ LG Lena Weronika Szelezniak born on May 30, 2009 at 10:04 am weighing.
Advertisements

J.C Santiard CERN EP-MIC ANALOG AND DIGITAL PROCESSING FOR THE READOUT OF RADIATION DETECTORS  J.C. Santiard, CERN, Geneva, CH
Specific requirements for analog electronics of a high counting rate TRD Vasile Catanescu NIHAM - Bucharest CBM 10th Collaboration Meeting Sept 25 – 28,
SKIROC New generation readout chip for ECAL M. Bouchel, J. Fleury, C. de La Taille, G. Martin-Chassard, L. Raux, IN2P3/LAL Orsay J. Lecoq, G. Bohner S.
Readout ASIC Development VERITAS II Garching, 28 January 2014 Matteo Porro.
The first testing of the CERC and PCB Version II with cosmic rays Catherine Fry Imperial College London CALICE Meeting, CERN 28 th – 29 th June 2004 Prototype.
5ns Peaking Time Transimpedance Front End Amplifier for the Silicon Pixel Detector in the NA62 Gigatracker E. Martin a,b J. Kaplon b, A. Ceccucci b, P.
Development of novel R/O electronics for LAr detectors Max Hess Controller ADC Data Reduction Ethernet 10/100Mbit Host Detector typical block.
FEE Perugia. A. Rivetti A FAST LARGE DYNAMIC RANGE SHAPING AMPLIFIER FOR PARTICLE DETECTOR FRONT-END A.Rivetti – P Delaurenti INFN – Sezione di Torino.
NA62 front end Layout in DM option Jan Kaplon/Pierre Jarron.
NA62 front end architecture and performance Jan Kaplon/Pierre Jarron.
A High-speed Adaptively-biased Current- to-current Front-end for SSPM Arrays Bob Zheng, Jean-Pierre Walder, Henrik von der Lippe, William Moses, Martin.
1 SciFi electronics meeting – CERN– June 20 th 2011 Some ideas about a FE for a SciFi tracker based on SiPM A. Comerma, D. Gascón Universitat de Barcelona.
MEDIPIX3 TESTING STATUS R. Ballabriga and X. Llopart.
14-5 January 2006 Luciano Musa / CERN – PH / ED General Purpose Charge Readout Chip Nikhef, 4-5 January 2006 Outline  Motivations and specifications 
Oct, 2000CMS Tracker Electronics1 APV25s1 STATUS Testing started beginning September 1 wafer cut, others left for probing 10 chips mounted on test boards.
Development of Readout ASIC for FPCCD Vertex Detector 01 October 2009 Kennosuke.Itagaki Tohoku University.
L.Royer– Calice DESY – July 2010 Laurent ROYER, Samuel MANEN, Pascal GAY LPC Clermont-Ferrand R&D LPC Clermont-Fd dedicated to the.
X-ray radiation damage of silicon strip detectors AGH University of Science and Technology Faculty of Physics and Applied Computer Science, Kraków, Poland.
Pierpaolo Valerio.  CLICpix is a hybrid pixel detector to be used as the CLIC vertex detector  Main features: ◦ small pixel pitch (25 μm), ◦ Simultaneous.
Second generation Front-end chip for H-Cal SiPM readout : SPIROC DESY Hamburg – le 13 février 2007 M. Bouchel, F. Dulucq, J. Fleury, C. de La Taille, G.
A Readout ASIC for CZT Detectors
Silicon Sensor with Readout ASICs for EXAFS Spectroscopy Gianluigi De Geronimo, Paul O’Connor Microelectronics Group, Instrumentation Division, Brookhaven.
A. Rivetti Gigatracker meeting, dec 2009 Charge measurement with the TDC per pixel architecture A. Rivetti, G. Dellacasa S. Garbolino, F. Marchetto, G.
A Front End and Readout System for PET Overview: –Requirements –Block Diagram –Details William W. Moses Lawrence Berkeley National Laboratory Department.
Fully depleted MAPS: Pegasus and MIMOSA 33 Maciej Kachel, Wojciech Duliński PICSEL group, IPHC Strasbourg 1 For low energy X-ray applications.
Progress on STS CSA chip development E. Atkin Department of Electronics, MEPhI A.Voronin SINP, MSU.
Time Resolution of Thin LGADs Results from the Nov 2014 Beam Test at CERN Improvement in hand: Sensor Capacitance Measurements with  Front TCT 1 Hartmut.
Performance limits of a 55  m pixel CdTe detector G.Pellegrini, M. Lozano, R. Martinez, M. Ullan Centro Nacional de Microelectronica, Barcelona, 08193,
Development of a high-speed single photon pixellated detector for visible wavelengths Introduction A photon incident on the photocathode produces a photoelectron.
1 Development of the input circuit for GOSSIP vertex detector in 0.13 μm CMOS technology. Vladimir Gromov, Ruud Kluit, Harry van der Graaf. NIKHEF, Amsterdam,
NA62 Gigatracker Working Group Meeting 23 March 2010 Massimiliano Fiorini CERN.
Development of the Readout ASIC for Muon Chambers E. Atkin, I. Bulbalkov, A. Voronin, V. Ivanov, P. Ivanov, E. Malankin, D. Normanov, V. Samsonov, V. Shumikhin,
Valerio Re, Massimo Manghisoni Università di Bergamo and INFN, Pavia, Italy Jim Hoff, Abderrezak Mekkaoui, Raymond Yarema Fermi National Accelerator Laboratory.
65 nm CMOS analog front-end for pixel detectors at the HL-LHC
Sensor testing and validation plans for Phase-1 and Ultimate IPHC_HFT 06/15/ LG1.
A Fast Monolithic Active Pixel Sensor with in Pixel level Reset Noise Suppression and Binary Outputs for Charged Particle Detection Y.Degerli 1 (Member,
HEXITEC ASIC – A Pixellated Readout Chip for CZT Detectors Lawrence Jones ASIC Design Group Science and Technology Facilities Council Rutherford Appleton.
Status of the n-XYTER testing Knut Solvag, Gerd Modzel, Christian Schmidt, Markus Höhl, Andrea Brogna, Ullrich Trunk, Hans-Kristian Soltveit CBM.
Fermilab Silicon Strip Readout Chip for BTEV
Timing in Thick Silicon Detectors Andrej Studen, University of Michigan, CIMA collaboration.
Click to edit Master subtitle style Presented By Mythreyi Nethi HINP16C.
2004 Multichannel integrated circuits for digital X-ray imaging with energy windowing Krzysztof Świentek Department of Nuclear Electronics FPNT, AGH Kraków.
M. TWEPP071 MAPS read-out electronics for Vertex Detectors (ILC) A low power and low signal 4 bit 50 MS/s double sampling pipelined ADC M.
CBM-TOF-FEE Jochen Frühauf, GSI Picosecond-TDC-Meeting.
ASIC Development for Vertex Detector ’07 6/14 Y. Takubo (Tohoku university)
CERN PH MIC group P. Jarron 07 November 06 GIGATRACKER Meeting Gigatracker Front end based on ultra fast NINO circuit P. Jarron, G. Anelli, F. Anghinolfi,
CBM 12 th Meeting, October 14-18, 2008, Dubna Present status of the first version of NIHAM TRD-FEE analogic CHIP Vasile Catanescu and Mihai Petrovici NIHAM.
Development of the X-ray Detectors for XTP Cao Xue-lei Institute of High Energy Physics, CAS IHEP, Beijing.
Update on works with SiPMs at Pisa Matteo Morrocchi.
CdTe prototype detector testing Anja Schubert The University of Melbourne 9 May 2011 Updates.
Equalization of Medipix2 imaging detector energy thresholds using measurement of polychromatic X-ray beam attenuation Josef Uher a,b, Jan Jakubek c a CSIRO.
1 C. Ballif 3, W. Dabrowski 2, M. Despeisse 3, P. Jarron 1, J. Kaplon 1, K. Poltorak 1,2 N. Wyrsch 3 1 CERN, Geneva, Switzerland 2 Faculty of Physics and.
NEWS FROM MEDIPIX3 MEASUREMENTS AND IMPACT ON TIMEPIX2 X. Llopart CERN.
V.Aulchenko 1,2, L.Shekhtman 1,2, B.Tolochko 3,2, V.Zhulanov 1,2 Budker Institute of Nuclear Physics, , Novosibirsk, Russia Novosibirsk State University,
12 th Pisa Meeting, Isola d’Elba, 25 May 2012 Politecnico di Milano, Italy New Development of Silicon Drift Detectors for Gamma-ray.
Pixel Sensors for the Mu3e Detector Dirk Wiedner on behalf of Mu3e February Dirk Wiedner PSI 2/15.
Clear Performance and Demonstration of a novel Clear Concept for DEPFET Active Pixel Sensors Stefan Rummel Max-Planck-Institut für Physik – Halbleiterlabor.
GEM gas detectors for Soft X-ray imaging in Fusion devices with neutron-gamma background and polycapillary lenses F. Murtas 2, S. Dabagov 2,4, L. Gabellieri.
Page Detector and Electronics R&D for picosecond resolution, single photon detection and imaging J.S. MilnesPhotek Ltd T.M. ConneelyUniversity.
Performance of the PHENIX NCC Prototype Michael Merkin Skobeltyn Institute of Nuclear Physics Moscow State University.
VMM ASIC ― Status Report - April 2013 Gianluigi De Geronimo
INFN Pavia and University of Bergamo
Jan Soldat, Heidelberg University for the DSSC ASIC design groups
A Low Power Readout ASIC for Time Projection Chambers in 65nm CMOS
A Fast Binary Front - End using a Novel Current-Mode Technique
BESIII EMC electronics
Readout Electronics for Pixel Sensors
Readout Electronics for Pixel Sensors
Readout Electronics for Pixel Sensors
Presentation transcript:

Performance of a 128 Channel counting mode ASIC for direct X-ray imaging A 128 channel counting ASIC has been developed for direct X-ray imaging purposes. The peaking time of the input amplifier is 60ns, with an E.N.C. of better that 600 RMS electrons for an input capacitive load of 2 pF. A simple USB based readout system, using a ‘PIC’ microcontroller is presented. Results are shown using 1 mm thick Silicon detectors with pixel dimensions of 130 * 130 um. Some images taken with the module of four ASICs and two detectors comprising 512 channels are shown. E. Chesi 1, J. S. Iwanczyk 2, J. Kaplon 1, D. Moraes 1, E. Nygard 3, A. Rudge 1, P. Weilhammer 1 1 CERN, Geneva, Switzerland 2 DxRay, Inc., Northridge, CA, USA 3 Interon AS, Asker, Norway

Fig.1 The ASIC is implemented in 0.25um CMOS technology. The transimpedance pre-amplifier [1] and Shaper form a CR-RC filter with a peaking time of 60ns. 2 test inputs to individual channels are provided via a 0.1pF capacitor. The two discriminators have externally determined thresholds enabling simple energy discrimination. Fine adjustment of individual thresholds is possible using 5 bit internal trimdacs which are preloaded from a serial shift register. The discriminators are followed by a 25ns monostable. The counters are multiplexed together and read out as 18 parallel bits at speeds greater than 20 Mhz. [2] Block diagram of the ASIC architecture

Fig.2

A PIC [3] microcontroller was chosen to maximize simplicity and flexibility. It is programmed in assembly language in situ. via a second USB interface. The instruction cycle is executed at 10 Mhz. The PIC provides all the control signals for the ASIC, also timing information for the 18 bit FIFO and ‘hand shakes’ for the USB interface. The trimdac serial data from the P.C. is reformatted by the PIC and passed to the ASIC at the start of each run. An ASCII display is included for debugging purposes. Fig.3

Performance of the 17ch. Prototype Pulse Generator 2mV into 1.8pF. at the input. Detector 1mm Si. 250V Am 241 Histogram of pulse heights Am 241 Linear Channel Threshold scan with Am.241 Source Fig.4 [2]

Fig. 5 Pulse generator threshold scan of a single channel of the 128 channel ASIC, with an input of 5 *10 fC. The bias values are set to accept positive inputs. The 128 channel ASIC has no analog channel, the bias settings were optimized using the 17 channel prototype. Pulse generator scan of all channels with threshold setting of 180.

Fig. 6 Threshold scan of single channel with source

Fig. 7 The signal amplitude as determined from a threshold scan with pulse generator input. Good agreement with the source data is observed. A threshold lower than 20 Kev. seems to be possible.

The complete module with four ASICs and two detectors, 512 pixels Fig. 8

Fig. 9 The detector assembly shown in the previous slide was tested with a 90 Sr. source at a fixed threshold. All 512 channels were observed to count, and the geometrical effect of the source close to the detector can be clearly seen.

Fig. 10 A three dimensional “lego” plot of channel No. (long axis) versus threshold. The ASIC has a known and understood systematic gain variation, however other effects are seen, which, when understood may be removed with the trimdac adjustment.

Fig. 11 First attempts at imaging. Pixel size is 130um *130 um. A 3mm section square steel bar was placed above the detector and the assembly was illuminated with two different sources. The image can be clearly seen. Some dead channels are observed.

Fig. 12 A 1 mm hole was then drilled in the previously mentioned bar and imaged With a Am source. The hole can be clearly observed. 241 The hole was then repositioned by half its diameter and again imaged, producing the plot shown below.

Fig. 13 Stepping motor driven linear actuator producing 130um steps

Fig. 14 Initial results from imaging the metal bar using the moving assembly

The authors would like to thank Richard Grey from the University of Auckland for the preparations of the lego plots. References Acknowledgements [1] P.Jarron et al. A Transimpedance amplifier using a novel current mode feedback loop. N.I.M. A, vol 377, pp , 1996 [2] D. Moraes et al. Front-End Counting Mode Electronics for CdZnTe Sensor Readout. IEEE Nuclear Science Symposium 2004 [3] Microchip Technology Inc. Chandler, AZ USA

Conclusions The performance of a 128 Channel counting mode ASIC developed for direct X-ray imaging, together with the sensor, consisting of 256, 130um * 130um pixels specially developed for this application, has been tested as a complete system. The silicon pad sensor is 1 mm thick and was designed to be ‘edgeless’ (130um from the last pixel to the cutting edge) allowing several detectors to be positioned next to each other to minimize dead space. The readout system used has been described. A simple linear scanning device has been shown to be operational, and preliminary images presented. The functionality of the ASIC has been proven, and known problems are under investigation. The use of the trimdac has not yet been implemented, but it is expected that it will perform its design function and significantly reduce channel to channel variations. A four ASIC and detector assembly has been constructed, and presented here. Future development will concentrate on further system improvement.