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Dosepix – a detector for quality assurance in Medical Imaging

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Presentation on theme: "Dosepix – a detector for quality assurance in Medical Imaging"— Presentation transcript:

1 Dosepix – a detector for quality assurance in Medical Imaging
Francesca Bisello Midterm Review Meeting ARDENT Project October 14th, Milan

2 About Myself Venice (Italy) Nürnberg (Germany) About myself
ARDENT Project Research work Training & Conferences About Myself Venice (Italy) Nürnberg (Germany)

3 University of Padua: Bachelor Degree
About myself ARDENT Project Research work Training & Conferences University Education University of Padua: Bachelor Degree Erasmus at Ludwig Maximilians Universität München University of Bologna : Master Degree in Applied Physics Master Thesis: „Characterization of a radiochromic film Gafchromic EBT2 in relation to a Ir-192 source“, Sant´Orsola-Malpighi hospital,Bologna

4 Physics and Innovation Group IBA Dosimetry Schwarzenbruck, Germany
About myself ARDENT Project Research work Training & Conferences ARDENT Project Physics and Innovation Group IBA Dosimetry Schwarzenbruck, Germany

5 ECAP, Radiation Physics Group FAU University Erlangen
About myself ARDENT Project Research work Training & Conferences ARDENT Project ECAP, Radiation Physics Group FAU University Erlangen Dosepix Group FAU University Erlangen

6 About myself ARDENT Project Research work Training & Conferences ARDENT Project ARDENT ESR 10 Goal Development of a Dosepix based Quality Assurance detector for different X-rays modalities in Medical Imaging

7 Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels
About myself ARDENT Project Research work Training & Conferences Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels Single Photon counting : Time-Over-Threshold method

8 Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels
About myself ARDENT Project Research work Training & Conferences Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels Single Photon counting : Time-Over-Threshold method 128 bit Register Periphery DAC Register

9 Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels
About myself ARDENT Project Research work Training & Conferences Dosepix Hybrid Silicon Detector Matrix: 16x16 Pixels Single Photon counting : Time-Over-Threshold method

10 Diagnostic Quality Assurance Device for Mammography:
About myself ARDENT Project Research work Training & Conferences Research Activities Diagnostic Quality Assurance Device for Mammography: Mammo Tube IBA Dosimetry, Schwarzenbruck

11 Diagnostic Quality Assurance Device for Mammography:
About myself ARDENT Project Research work Training & Conferences Research Activities Diagnostic Quality Assurance Device for Mammography: Mammo Tube IBA Dosimetry, Schwarzenbruck February 2013 – October 2013 Preliminary studies: Working Modes, DAC, Spectrum measurements, calibartions Future: Simulation of monoenergetic response functions Reconstruction of impinging spectra and dose calculation Determination of the Range of Work Improving Energy Calibration

12 Simulations Reconstruction Range of Work Research Activities
About myself ARDENT Project Research work Training & Conferences Research Activities Features : Future Activity: Monte-Carlo Simulation of response and comparison to measurement (small and big pixels) Simulations Deconvolution to reconstruct impinging spectra (small and big pixels) Dose Calculation Reconstruction Experimental Activity with different set-up and different DAC settings Range of Work

13 Based on the use of Fluorescence lines from different materials
About myself ARDENT Project Research work Training & Conferences Research Activities Energy Calibration Based on the use of Fluorescence lines from different materials Comparison between Energy Calibration and Analog Test Pulse Calibration Bremsstrahlung X-ray Spectra – kVp deduction

14 Energy Calibration of the detector: Experimental Set-up
About myself ARDENT Project Research work Training & Conferences Research Activities Energy Calibration of the detector: Experimental Set-up Xray Tube ECAP, FAU University Erlangen

15 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibration of the detector: Response of a single pixel to the fluorescence lines of different materials Xray Tube ECAP, FAU University Erlangne

16 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibration of the detector: Interpolation and Fitting of the peaks Xray Tube ECAP, FAU University Erlangne

17 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibration of the detector: Interpolation and Fitting of the peaks Xray Tube ECAP, FAU University Erlangne 𝑓 𝑥 =𝑎+𝑏∗𝑥+ 𝑐 (𝑥−𝑡)

18 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibration of the detector: Comparison between Analogue Test Pulse Calibration and XRF Xray Tube ECAP, FAU University Erlangne 𝑓 𝑥 =𝑎+𝑏∗𝑥+ 𝑐 (𝑥−𝑡) 𝑓 𝑥 =𝑎+𝑏∗𝑥+ 𝑐 (𝑥−𝑡)

19 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibration of the detector: Comparison between Analogue Test Pulse Calibration and XRF Xray Tube ECAP, FAU University Erlangne 𝑓 𝑥 =𝑎+𝑏∗𝑥+ 𝑐 (𝑥−𝑡) 𝑓 𝑥 =𝑎+𝑏∗𝑥+ 𝑐 (𝑥−𝑡) “Characterization of a new Photon counting Detector with XRF “, F. Bisello , I. Ritter, F. Tennert, T. Gabor, M. Campbell, W.S. Wong, S. Wölfel, G.Anton, N.Michel and T. Michel, IEEE 2013, Seoul

20 Completed Research Activity
About myself ARDENT Project Research work Training & Conferences Completed Research Activity Energy Calibrated Bremsstrahlung spectra from ECAP X-ray device: Sn Filter PMMA Filter

21 Trainings, Schools and Conferences
About myself Dosepix Training & Conferences Research Activity Trainings, Schools and Conferences IBA Dosimetry Training Absolute and Relative Dosimetry Xray facilities Training Radiation Safety Monte Carlo simulation with EGS Company Data Protection Introduction to QM System Introduction into Working safety Training at Neumarkt hospital Daily Quality Assurance at Radiotherapy Unit

22 Trainings, Schools and Conferences
About myself ARDENT Project Research work Training & Conferences Trainings, Schools and Conferences Attended Schools V Nation School, INFN Padova (Italy) : „Electronics and Detector for High Energy Physics, Astrophysics, Space Application and Medical Physics“ Radiation damage in Semiconductor Detector Front-end Electronics Medical Application ( Silicon photomultiplier, Proton Therapy) Conferences IEEE Seoul 2013, Workshop „New Detector thecnologies in Radiation Dosimetry and ist Application“, October 27- November 3 Characterization of a new Photon counting Detector with XRF F. Bisello1,2, I. Ritter2, F. Tennert2, T. Gabor2,5, M. Campbell3, W.S. Wong3, S. Wölfel1, G.Anton2, N.Michel4 and T. Michel2 1- IBA Dosimetry GmbH, Bahnhofstraße 5, Schwarzenbruck, Germany 2-Erlangen Centre for Astroparticle Physics, Radiation and Detector Physics, Erwin Rommel-Str. 1, Erlangen, Germany 3- Medipix Team, Microelectronics Group, CERN, 1211 Geneva, Switzerland 4- Customized Microelectronic Solutions, Bruckwiesenstr. 3, Schnaittach,Germany 5- Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstraße 2, Freiburg im Breisgau , Germany

23 Trainings, Schools and Conferences
About myself ARDENT Project Research work Training & Conferences Trainings, Schools and Conferences Programmed Events National Congress of Medical Physics, AIFM Torino November 2013 ICTR-PHE 2014, Geneve February

24 Thank you for your attention

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