Table of contents
Part I – Scientific Activities
Project name
Participation in the following projects: Gamma camera Diagnostic Enhancement (DNGG) and JET Fast_Electron_Bremsstrahlung camera enhanced system (FEB)
| Name | Degree | % participation |
| Ana Maria Gonçalves Fernandes | Fellow with Master | 100% |
Summary and highlights of research achievements
During 2011 year the main research achievements were:
i) Development and implementation of two RT algorithms in the FPGAs of the DNGG and FEB digitizer systems, two JET-EFDA diagnostics. The first algorithm is suitable for a Gaussian shaped pulse, when an external shaping amplifier is used betweenthe detectors and the digitizers. The second algorithm is based on a double trapezoidal filter, it is suitable for raw exponential signals, and should be used when the data is acquired directly from the detectors.
ii) Development of the RT stream operation mode, to allow sending through the JET RT network the line-integrated emissions of the hard x-rays in RT, a goal for FEB project. The RT stream operation mode must operate simultaneously with the existing mode of raw/processed data storage in digitizer memories. The both modes operating simultaneously are under test at JET.
iii) Development and tests at JET of two software applications for data view and analyses. The first is a calibration software (Python graphical user interface) to calibrate in energies the 19th detectors of the DNGG/FEB diagnostics. The second is a private software (Octave script) to read the DNGG/FEB data, stored in JET database as LPF (late pulse file), and buildspectra in JET computers (JAC).
iV) Calibration of the 19th DNGG/FEB channels using the RT algorithm at FPGAs to build the reference spectra for calibration slope.
iV) Participation in C28 JET campaign in a 1 month secondment agreement under FEB competence.
Part II – Scientific Output
A. Publications - Papers in international refereed scientific journals
| Author(s) | A. M. Fernandes, R. C. Pereira, J. Sousa, A. J. N. Batista, A. Combo, B. B. Carvalho, C. M. B. A. Correia, C. A. F. Varandas |
| Paper title | HDL based FPGA interface library for data acquisition and multipurpose real time algorithm processing |
| Journal name | IEEE Transactions on Nuclear Science |
| Volume, page | vol. 58(4), pp. 1526-1530 |
| Year | Aug. 2011 |
| Author(s) | R. C. Pereira, A. M. Fernandes, A. Neto, J. Sousa, J. Cardoso, C. M. B. A. Correia, M. Tardocchi, M. Nocente, G. Gorini, V. Kiptily, B. Syme, M. Jennison and JET-EFDA contributors |
| Paper title | Pulse analysis for gamma-ray diagnostics ATCA sub-systems of JET tokamak |
| Journal name | IEEE Transactions on Nuclear Science |
| Volume, page | vol. 58(4), pp. 1531-1537 |
| Year | Aug. 2011 |
B. Publications and contributions in conferences and workshops - Posters
| Conference | IAEA 8th Technical Meeting on Control, Data Acquisition and Remote Participation for Fusion Research |
| Start-end date | 20-24 June 2011 |
| Location | San Francisco, California |
| Author(s) | A.M. Fernandes, R.C. Pereira, J. Sousa, B.B. Carvalho, J.M.F. dos Santos, V. Kiptily, C.M.B.A. Correia, C.A.F. Varandas and JET-EFDA Contributors |
| Poster title | Real Time Algorithms for Digital Pulse Processing applied to Gamma-Ray and Hard X-Ray Spectroscopy |
E. Distinctions and awards
A.M. Fernandes served as referee for Journal of Fusion Engineering and Design of one paper in the Eighth IAEA Technical Meeting (IAEA-TM) peer-reviewed special issue
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