Safe and compact self-contained irradiation calibration system that doesn`t require special room. Designed for verification, calibration, and quality assurance of the radiation instruments that measure exposure dose and exposure dose rate, air kerma and kerma rate, dose equivalent and dose equivalent rate, personal dose equivalent and personal dose equivalent rate and testing these instruments in gamma-radiation collimated beam emitted by standard 137Cs source.
Air kerma
—
from 1.0 μGy/h to 14 Gy/h
Exposure dose rate
—
from 114 μR/h to 1600 R/h
Ambient dose equivalent rate (ADER)
—
from 1.2 μSv/h to 16.7 Sv/h
Personal dose equivalent rate (PDER)
—
from 1.2 μSv/h to 16.9 Sv/h
Confidence limits of relative errors of ambient dose equivalent rate, personal dose equivalent rate at confidence coefficient 0.95 if the system is certificated as
—
an operating standard of the second category - 7 %
an operating standard of the third category - 10 %
Confidence limits of relative errors of air kerma rate, exposure dose rate at confidence coefficient 0.95 if the system is certificated as
—
an operating standard of the second category - 5 %
an operating standard of the third category - 8 %
Relative error of detector positioning in radiation field (X axis), no more
—
± 0,15 %
Quantity of sources
—
up to 2
Maximum <sup>137</sup>Cs source activity, up to
—
2.4*1013 Bq (650 Ci)
Maximum <sup>137</sup>Cs sources total activity, up to
—
2.5*1013 Bq (680 Ci)
Warm-up time
—
1 min
Operation mode setup time, no more
—
1 min.
Time of source transfer from storage/expose position to expose/storage position, no more, sec.
—
15
Diameter of uniform radiation field, at least
—
at a distance of 1 m from the gamma radiation source
- 160 mm at field uniformity of no more than 6 %
- 180 mm at field uniformity of no more than 9 %
ADER at the surface if the source in storage position, no more
—
0.5 μSv/h
ADER near the surface if the source in working position, no more
—
2 μSv/h at 30 cm from the surface
Dimensions of the operating table
—
210x300 mm
Dimensions of the irradiation chamber door aperture
—
460x460 mm
Diameters of calimator outlet channel
—
90 mm
Calimator channel length (from source center)
—
150 mm
Range of the operating table movement along the Z-axis, at least
—
150 mm
Operating distances range (along Х axis) from source center to instrument detector
—
from 300 to 1000 mm
Movement speed of trolley (X axis)
—
from 0,5 mm/s to 0,1 m/s
Dimensions
—
1860х880х1620 mm
Weight
—
3500 kg
Total weight of instruments installed on table, no more, kg
—
30
Time of system continuous operation, at least
—
24/7
Mean recovery time
—
no more than 6 h.
Mean service lifetime
—
at least 15 years
Mean time between failyres, no less than
—
60 000 h
Atmospheric pressure
—
from 84 to 106,7 kPa
Operating temperature
—
10 °C up to 35 °C
Humidity
—
from 45 % to 80 %
Supply voltage
—
230 V ± 10%
Power consumption
—
no more than 600 V⋅A