1. LNF - Beam Test Facility Sept. 29 – Oct. 04
Characterization of
LAZIO Detectors
Low Altitude Zone Ionizing Observatory

2. Low Altitude Zone Ionizing Observatory
Outline
Purposes of the Beam Test
Beam Characteristics
Instrumental Setup
Mechanics
Electronics
Data Analysis and Results
Future Purposes and Conclusions
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

3. Low Altitude Zone Ionizing Observatory
Purposes
Instruments:
Scintillator Detectors
Light Guide
Photo Multipliers
LabView based Acquisition System
Measures:
Detector Resolution
Light Counting Attenuation vs Distance
Relative Detector Efficiency
Normalizzation to the BTF Calorimeter Countings
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

4. Low Altitude Zone Ionizing Observatory
Beam Characteristics
500MeV electrons
Repetition Rate 50 Hz
Pulse Duration 1-10 ns
Current/pulse 1 to 8 particles
σXY ~2mm
Max Electronic Rate: 1KHz
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

5. Low Altitude Zone Ionizing Observatory
Setup - Mechanics
Beam line
BTF
Calorimeter
Beam Trigger
Scintillator
Mover
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

6. Low Altitude Zone Ionizing Observatory
Setup - Electronics
Beam Trigger
860 mV
5:1
HV Power Supply
Scintillator
Attenuator
CAMAC
15 V
CAMAC
Power Supply
DAQ
Fanin
Fanout
Delay
units
12 bit ADC
Beam
Calorimeter
Acquisition System
Scint.
Calorim.
CAMAC
Discriminator
Scaler
Ext.TRG
Beam Trigger
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

7. Data analysis - First View
Calorimeter Informations on Beam Energy distribution
Scintillator Data extraction by BTF calorimeter informations
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

8. Data analysis - Investigations
Filtered Data:
Selection of the single electron contribution in the BTF Calo data
Obtained Data:
Single electron contribution in the Scintillator data
Instrumental Resolution
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

9. Low Altitude Zone Ionizing Observatory
Results
Preliminary results:
Linear behaviour of Light Counting Attenuation vs distance (beam spot – light guide)
Next analysis:
Detector Efficiency relative to the BTF Calorimeter countings
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

10. Conclusions and Future
The BTF Calorimeter is a powerful tool in the Data investigation
The collected Light follow a linear behaviour as expected
Good understanding of BTF allow us to:
Realize a proper mechanical structure for the future test on the flight model
Find out the best configuration for the test with Front End and Read Out electronics
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory

11. Low Altitude Zone Ionizing Observatory
People
Francesco Altamura
Raffaele Bencardino
Vittorio Bidoli
Lavinia Bongiorno
Sept. 29 – Oct. 04
Low Altitude Zone Ionizing Observatory