sofia_sirad_lazio
DESCRIPTION
Sofia_SIRAD_LAZIO. Sofia_SIRAD. The first variant of apparatus Sofia_SIRAD for on board of ISS investigations mechanical structure was design; The prototype of small size power supply for space instrument operating on the Russian Segment of ISS was produced; - PowerPoint PPT PresentationTRANSCRIPT
Sofia_SIRAD_LAZIOSofia_SIRAD_LAZIO
Sofia_SIRADSofia_SIRAD The first variant of apparatus Sofia_SIRAD for on The first variant of apparatus Sofia_SIRAD for on
board of ISS investigations mechanical structure was board of ISS investigations mechanical structure was design;design;
The prototype of small size power supply for space The prototype of small size power supply for space instrument operating on the Russian Segment of ISS instrument operating on the Russian Segment of ISS was produced;was produced;
The trigger system on base of plastic scintillation The trigger system on base of plastic scintillation counters as mechanical design as electronic scheme counters as mechanical design as electronic scheme was developed and produced;was developed and produced;
Preliminary software algorithms was developed;Preliminary software algorithms was developed;
The prototypes of small size power The prototypes of small size power supply and trigger system supply and trigger system
Small size power Small size power supply for operating supply for operating
on the Russian on the Russian Segment of ISSSegment of ISS
3 plastic scintillation counters3 plastic scintillation counters
Electronics of trigger Electronics of trigger systemsystem
PC-104 towerPC-104 tower
AC/DC converter for AC/DC converter for ground workground work
LAZIOLAZIO The mechanical structure design of apparatus LAZIO The mechanical structure design of apparatus LAZIO
detectors for investigations on board of ISS was detectors for investigations on board of ISS was developed;developed;
The small dimension power supply for LAZIO The small dimension power supply for LAZIO detectors was developeddetectors was developed
Three scintillation detectors on base of photomultipliers Three scintillation detectors on base of photomultipliers HP6780 and front-end electronics was developed;HP6780 and front-end electronics was developed;
Two scintillation detectors on base of photodiodes Two scintillation detectors on base of photodiodes (SiPM) and front-end electronics was developed;(SiPM) and front-end electronics was developed;
The trigger system of apparatus LAZIO was developed;The trigger system of apparatus LAZIO was developed; 16 tiles (plastic scintillator+shifter and photodiode) was 16 tiles (plastic scintillator+shifter and photodiode) was
producedproduced
ApparatusApparatus LAZIO LAZIO
Design of LAZIO scintillation detectors SC1&3+SiPMDesign of LAZIO scintillation detectors SC1&3+SiPM
H6780
16030 50 5
Area of mechanical connection
15515
135
30
10
5
Distributor board
10 60
A
View A70
9045
45
190
280
45
SC1&3+SiPMTiles
SiPMSiPMSilicon Photomultiplier (SiPMSilicon Photomultiplier (SiPM))
The SiPM consists of the array (matrix) of p-n-junctions (~103 mm-2) joint together on a common silicon substrate. Each p-n-junction working in limited Geiger mode with a gain 106, but SiPM in whole is analogue detector, because the SiPM output signal is a sum of the signals from p-n-junctions fired by photons
Comparison of characteristics vacuum and SiPM
Characteristics PM SiPM
1.Efficeincy %
470 nm
590 nm
670 nm
20
7-15
< 1
18
17
13
2. Gain factor 106- 107 106
3. Noise-factor 1,3-4.0 1.1-1.3
4. Threshold sensitivity (S/N)
1 1
5. Time jitter, psec
~100 30
6. Bias voltage
Volts
1000-2000 50-100
SiPM + Plastic scintillator = TileSiPM + Plastic scintillator = Tile
Tile:Plastic scintillator
3x3x0.5 cm3
Shifter
SiPM