stefano panebianco [email protected] – 06 24 03 73 99
DESCRIPTION
Stefano PANEBIANCO [email protected] – 06 24 03 73 99. Neutron-gamma discrimination in fission reactions (1 or 2 teams) Micromegas detector characterization: from X to cosmic rays Gamma spectrometry for material characterization - PowerPoint PPT PresentationTRANSCRIPT
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Stefano [email protected] – 06 24 03 73 99
• Neutron-gamma discrimination in fission reactions (1 or 2 teams)• Micromegas detector characterization: from X to cosmic rays• Gamma spectrometry for material characterization• Muon lifetime measurement (organic scintillators or Water tank)• Spectrometry and solar light
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Neutron-gamma discriminationNeutron-gamma discrimination
γ
γ
Spontaneous fission source:Emission of fission
fragments, gammas and neutrons
Aim of the game: discriminate neutrons from gammasAim of the game: discriminate neutrons from gammas
Two complementary techniques:Two complementary techniques:-Time Of Flight (TOF)-Pulse Shape Discrimination (PSD)
Aim of the game: discriminate neutrons from gammasAim of the game: discriminate neutrons from gammas
Two complementary techniques:Two complementary techniques:-Time Of Flight (TOF)-Pulse Shape Discrimination (PSD)
Tools of the game: scintillators + PMTTools of the game: scintillators + PMT
-Inorganic: NaI(Tl); BaF2
-Plastics: NE213-Organic liquid doped with Gd/Hf
Tools of the game: scintillators + PMTTools of the game: scintillators + PMT
-Inorganic: NaI(Tl); BaF2
-Plastics: NE213-Organic liquid doped with Gd/Hf
Data acquisition and analysisData acquisition and analysis
-DAQ card: MATACQ (signal sampling)-Analysis: ROOT code
Data acquisition and analysisData acquisition and analysis
-DAQ card: MATACQ (signal sampling)-Analysis: ROOT code
Supervisors: Stefano Panebianco, Vincent Andrieux
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Micromegas detector caracterization : from Micromegas detector caracterization : from X rays to cosmic raysX rays to cosmic rays
Micromegas : gas detector invented in 1996 for particle physics
Goals:
• Physics of gas detectors
• Measure of homogeneity and
efficiency of a micromegas prototype
for the CLAS12 (JLab) experiment
with a « cosmic bench »
Goals:
• Physics of gas detectors
• Measure of homogeneity and
efficiency of a micromegas prototype
for the CLAS12 (JLab) experiment
with a « cosmic bench »
CLAS12 Micromegas prototypes electronics and acquisition system, « cosmic bench »
Supervisors: David Attié, Francesca Belloni, Mariam Kebbiri
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Gamma spectrometry for material Gamma spectrometry for material characterizationcharacterization
Physics :γ-matter interaction (photoelectric peak, Compton effect…)Radioactive sourceAnalysis of Excitation energy spectra
Physics :γ-matter interaction (photoelectric peak, Compton effect…)Radioactive sourceAnalysis of Excitation energy spectra
Goals:Characterization of a germanium detectorCalibrationEstimation of efficiencyBackground noise reductionUse of NIM electronics“Modern” acquisition system
Goals:Characterization of a germanium detectorCalibrationEstimation of efficiencyBackground noise reductionUse of NIM electronics“Modern” acquisition system
Supervisors: Magdalena Kielinska, Jean-François Lemaître
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Muon lifetime measurement:Muon lifetime measurement:organic scintillatorsorganic scintillators
Supervisors: Philippe Schune, Julie Malclès, Emmanuel Moulin, Maxime Pequignot
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Muon lifetime measurement:Muon lifetime measurement:Water tankWater tank
Supervisors: Philippe Schune, Julie Malclès, Emmanuel Moulin, Maxime Pequignot
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Main topics :• Optical system• CCD camera, signal, noise, signal-to-noise ratio• Spectrometry, gratings, spectral resolution, light scattering• Information processing, data reduction, spectral analysis, calibration
Equipment :• High resolution grating spectrometer• Large array CCD detector• Acquisition computer• Equatorial mount• Laboratory devices : spectral lamps, filters,…
Spectrometry and Solar lightSpectrometry and Solar light
The main goal is to produce a calibrated spectrum of the Sun in the visible (400 nm to 800 nm) and to analyse it (temperature, spectral class, abundances…)
Supervisors:, Pascal Gallais, Samuel Ronayette
M2 NPAC – Laboratory Works @ CEA Saclay - 2013
Stefano [email protected] – 06 24 03 73 99
• Neutron-gamma discrimination in fission reactions (1 or 2 teams)• Micromegas detector characterization: from X to cosmic rays• Gamma spectrometry for material characterization• Muon lifetime measurement (organic scintillators or Water tank)• Spectrometry and solar light
A car may be convenient even though not required.
Buses are available from “Le Guichet” RER station