{"id":789,"date":"2014-05-11T18:55:31","date_gmt":"2014-05-11T18:55:31","guid":{"rendered":"http:\/\/192.168.1.104\/enfold-blog\/?p=51"},"modified":"2023-09-28T06:05:22","modified_gmt":"2023-09-28T06:05:22","slug":"thiet-bi-do-neutron","status":"publish","type":"post","link":"https:\/\/inirat.com\/en\/2014\/05\/11\/thiet-bi-do-neutron\/","title":{"rendered":"Neutron measuring equipment"},"content":{"rendered":"

<\/p>\n

Model: SPECTRA<\/div>\n
\u00a0<\/div>\n
Photon-ionizing radiation sensitivity of (137Cs) CsI(Tl) scintillation detector: 400 cps\/(\u00b5Sv\/h)<\/div>\n
Upon customer\u2019s request the sensitivity can be changed to a value of not less: 200 cps\/(\u00b5Sv\/h)<\/div>\n
\u00a0<\/div>\n
Neutron radiation sensitivity while using the LiI(Eu) scintillation detector: 0.12 \u00b1 0.012 pulse\u00b7cm2\/n<\/div>\n
\u2013 for thermal neutrons, not less: 1.2 \u00b1 0.12<\/div>\n
\u2013 for fast neutrons, not less: pulse\u00b7cm2\/n<\/div>\n
\u00a0<\/div>\n
Total measurement and display range of photon-ionizing DER: 0.01 \u2026 106 \u03bcSv\/h<\/div>\n
\u2013 from built-in scintillation detecting unit of photon-ionizing radiation: 0.01 \u2026 50 \u03bcSv\/h<\/div>\n
\u2013 from built-in Geiger-Muller counter: 50 \u2026 106 \u03bcSv\/h<\/div>\n
\u00a0<\/div>\n
Measurement and display range of photon-ionizing DE from the Geiger-Muller counter 0.1 \u2026 9.9\u00b7106 \u03bcSv<\/div>\n
\u00a0<\/div>\n
Display range of neutron radiation DER 0.01 \u2026 104 \u03bcSv\/h<\/div>\n
\u00a0<\/div>\n
Display range of count rate of photon-ionizing radiation 1 \u2026 25 000 cps<\/div>\n
\u00a0<\/div>\n
Display range of pulse count rate of neutron radiation from the scintillation neutron detecting unit 0.01 \u2026 25 000 cps<\/div>\n
Main relative permissible error limit when measuring photon-ionizing radiation DER from the scintillation detecting unit of photon-ionizing radiation at 0.95 confidence probability (137Cs) (15+1\/H*(10)) %,where H*(10) is a numeric value of measured DER in \u03bcSv\/h<\/div>\n
\u00a0<\/div>\n
Main relative permissible error limit when measuring photon-ionizing radiation DER and DE from the Geiger-Muller counter at 0.95 confidence probability (137Cs) 15 %<\/div>\n
\u00a0<\/div>\n
Energy range of detected photon-ionizing radiation 0.02 \u2026 3 MeV<\/div>\n
\u00a0<\/div>\n
Energy dependence of the device\u2019s readings when measuring photon-ionizing radiation DER in the energy range from 0.05<\/div>\n
MeV to 1.25 MeV relative to 0.662 MeV energy (137Cs) \u00b1 25 %<\/div>\n
\u00a0<\/div>\n
Resolution of scintillation detecting unit of photon-ionizing radiation for 137Cs, not more 8 %<\/div>\n
\u00a0<\/div>\n
Energy range of detected neutron radiation 2.5\u00b710-8 \u2026 14 MeV<\/div>\n
\u00a0<\/div>\n
Set-up time of the device operation, not more 1 min<\/div>\n
\u00a0<\/div>\n
Calibration time by the level of gamma background 2 \u2026 90 s<\/div>\n
\u00a0<\/div>\n
Response time to over 10 times change of photon-ionizing radiation DER 0.25 s<\/div>\n
\u00a0<\/div>\n
Operating supply voltage 3.7 V<\/div>\n
\u00a0<\/div>\n
Time of continuous operation of the device when powered from the charged lithium-polymer battery under background of gamma radiation not more than 0.5 \u03bcSv\/h<\/div>\n
\u2013 a switched-off display backlight, with no alarm triggering and a switched-off GPS receiver, not less: 200 h<\/div>\n
\u2013 a switched-off display backlight, with no alarm triggering and a switched-on GPS receiver, not less: 55 h<\/div>\n
\u00a0<\/div>\n
Operating temperature range \u2013 20 \u2026 + 50 \u00b0\u0421<\/div>\n
\u00a0<\/div>\n
Dimensions of the device without a clip (with a clip), not more 67 \u00d7 128 \u00d7 30 (45) mm<\/div>\n
\u00a0<\/div>\n
Weight of the device, not more 0.28 kg<\/div>\n\n\n

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