Microsoft PowerPoint - mesmerise4
16 g Pink Salt Tea Bag on the thigh.
Tea bag with 16 g of refined sugar on the thigh.
X-MESMERISE Ultra Low-Dose X-Ray emission system X-Ray collimation system Gantry Transport system X-ray detection system Automatic Recognition system 0.25 µSv
2-stage detection direct detection standard solution CdTe solution RX RX - scintillator semi-conductor light +- @ room temperature photodiode + charges charges ~ 2000 charges ~ 20 000 charges @ 100 keV @ 100 keV
Ha. af Phosors
SNIEA
ET
Actual Absorption Spectra Dual Energy
ins libbbbbssnn
Ho. of Photons
N Energy [kev] N Energy [keW]
Each single en = Numbers:
has its specific Low, High Energy
absorption spectrum
Absorption measurement
based on I owerlapping
average values
Ha. af Phatans
Muki Energy (ME)
N Energy eV]
Complete Spectra:
256 Energy Bins
Aksarption measurement
based on 356 independent
values : |,e. a Spectrum
Material separability improvement with ME100 spectral information
Image resolution Detailed view of an image from the ASTM F792 test piece acquired by a conventional detection system (left) and the multiple energy detector (right) with same acquisition parameters.
Specific method to identify the materials
Information processing
- ME calibration, superposition
- Method using probability density
- Density & Zeff Identification
Dual-enerey detector [« sandwich »
icn Fcm 3m cm
- blue : PTFE iteflon]
- green: PE |polyeifylene)
- rad: PORM (defrin]
Automated Target Recognition System