MAL-OPS-0927 Revision 4.0 Page 45 of 52
10 Specification
The D3S ID technical specification and regulations met are detailed below.
Detector Specification
Detector type
Gamma and Neutron detection
Gamma detector material
CsI(Tl)
Gamma detector volume
1 in
3
(16 cm
3
)
Gamma energy range
30 keV to 3 MeV
Gamma sensitivity for Cs137
5 cps/μR/h (500 cps/μSv/h)
Photo peak 1.2 cps/μR/h (120 cps/μSv/h)
Maximum throughput for
gamma channel
10,000 cps
Maximum dose rate
2.0 mR/h (20 μSv/h) at 662 keV (spectroscopic)
100 R/h (1 Sv/h) at 662 keV with high dose
module
Neutron detector material
Non-
3
He
Neutron detector
9 cps in a 1 neutron per cm
2
field
Neutron detector gamma
rejection
Better than 10
-7
,
meets ANSI N42.34 section 6.7
Maximum throughput for
neutron channel
5,000 cps
Communications
Micro USB, Bluetooth®
Operational battery life
12 hours, 24 hours with add-on battery pack
Operational temperature range
−20°C to 50°C, meets ANSI N42.32 section 7.1,
section 7.2, section 7.5
Device size (excluding phone)
5.2" x 3.1" x 0.9" (132 mm x 80 mm x 23.5 mm)
Device volume (excluding
phone)
248 cm
3
Humidity
Up to 93% RH ANSI N42.32 section 7.3
Moisture/dust protection
IP53 as per ANSI N42.32 section 7.4
IP65 with add-on enclosure
D3S weight (excluding phone)
0.52 lbs (237 g)
Battery
1450 mAh Lithium polymer
Charging
Charging via USB or inductive charging
External LEDs
Visual detector status
Device status indicator
External LED
