Whole Body Spectrometers BodySPEC-S3

DESCRIPTION

The spectrometer BodySPEC-S3 is intended to measure energy distribution of gamma-radiation, identify gamma-emitting radionuclides and also measure activity of gamma-emitting radionuclides incorporated in the man’s whole body, lungs and thyroid gland.

Description

COMPLETE SET

  • Multi Channel Analyzers (MCA) StandMCA
  • Detection device UDEG-A (detector BDEG-150-100, installed in a collimator)
  • AC/DC adapter of analyzers
  • Positioning system
  • Stand with screen of shadow protection
  • PC with software

SPECIFICATION

Parameter Value
Type of detectors NaI(Tl)
Number of detection unit
– BDEG-150-100
1
Range of detected gamma-radiation energies, keV 50-3000
Relative energy resolution for 661,7 keV, measuring with point-source of the radionuclide 137Cs, %, not more:
– BDEG -150-100
12
Detection efficiency of the gamma-radiation in the full energy peak of radionuclide 137Cs, with energy 661,7 keV at a distance of 50 mm from the upper surface of detector, %, at least:
– detection unit BDEG -150-100
7,5
Maximum throughput for each detection units, cps, no less than 5∙104
Instability of spectrometer indications (energy conversion characteristic) for 24 hours of a continuous operation, %, not more ±1
Detection sensitivity of spectrometer for detection unit BDEG-150 to radionuclide 137Cs gamma-radiation in energy range from 620 to 700 keV, when measuring in the whole body geometry phantom, cps/Bq, at least:
1) with phantom of an adult (mass 70 kg, height 170 cm)
2) with phantom of an teenager 10 years old (mass 27 kg, height 135 cm)
3) with phantom of a child 2 years old (mass 12 kg, height 90 cm)
5,5·10^-4
8,5·10^-4
1,0·10^-3
Detection sensitivity of spectrometer for detection unit BDEG-150 to radionuclide 60Co gamma-radiation in energy range from 1100 up to 1410 keV, when measuring in an adult’s lungs phantom, cps/Bq, at least : 8·10^-3
Measuring range of activity of incorporated radionuclides for detection device UDEG-A, Bq :
– 137Cs in body
– 60Co in lungs
Permissible basic relative error for measuring activities does not exceed 50% (P=0,95).
from 330 to 15,0·106
from 50 to 9,0·106
Minimal detectable activity of incorporated radionuclides for detection device UDEG-A for 1 hour measuring period, Bq:
– 137Cs in body
– 60Co in lungs
200
25
Operation conditions:
– ambient air temperature, 0С
– relative air humidity, %
– atmospheric pressure in the range of, kPa
– intensity of magnetic fields of the permanent and variable grid frequencies, А/m
from 5 to 35 up to 90
from 84 to 106,7
up to 40
Spectrometer detection units in shipping containers are shockproof at shock acceleration of 20 m/s2, shock pulse duration of 15 ms and repetition rate of 10 bit per minute.