NOMEX
Technical Manual - Technical Specifications
84
D909.131.00/02 en
Device designation
NOMEX multimeter, type T11049 with
NOMEX software S030008
Measuring ranges
1)
Dose / dose per pulse
2)
RAD/FLU/DENT/CT/DENT-PAN
MAM
Dose rate
2)
RAD/FLU/DENT/CT/DENT-PAN
MAM
Pulses
3)
Pulse frequency
3)
Exposure time
3)
Tube voltage
RAD/FLU/DENT/CT/DENT-PAN
MAM
Total filtration
(40 … 45) kV
(45 … 150) kV
Half value layer
RAD/FLU/DENT/CT/DENT-PAN
MAM
50 nGy … 500 Gy, ± 3.5 %
500 nGy … 500 Gy, ± 2.5 %
5 µGy/s … 500 mGy/s, ± 3.5 %
0.1 µGy/s … 500 mGy/s, typical ± 4 % or ± 5 nGy/s
4)
50 µGy/s … 500 mGy/s, ± 2.5 %
1 … 99999
(0,2 ... 500) pulses/s
1 ms … 298 h, ± 0.5 ms or ± 1 %
5 s … 298 h, ± 1 s
4)
(40 … 150) kV, ± 1 kV or ± 1.5 %
(23 … 35) kV, ± 0.5 kV
(1.5… 40) mm Al, ± 2.5 mm Al or ± 10 %
(1.5… 40) mm Al, ± 0.5 mm Al or ± 10 %
(0.95… 13.5) mm Al, ± 0.25 mm Al
(0.25… 0.75) mm Al, ± 0.01 mm Al
MAM radiation qualities
Mo / 30 µm Mo
Mo / 0.5 mm Al
Mo / 25 µm Rh
W / 50 µm Rh
W / 50 µm Ag
W / 0.7 mm Al
Rh / 25 µm Rh
With and without compression paddle in each case
Indication of measured value
NOMEX software
Warm-up time
1 min
10 min
4)
Amplifier time constant
none
Dose resolution
1 nGy
1 )
When you measure very low dose rates in the sensitivity modes "High" and "Heavily Filtered", consider the toler-
ances indicated here as typical tolerances. In these modes, the recommended minimum measuring time is 5 sec-
onds.
2 )
Measuring range depends on the tube voltage, total filtration, and exposure time
4 )
Sensitivity modes "High" and "Heavily Filtered"
3 )
Minimum pulse width 1 ms
