Radiometer contamination surfaces of alpha- and beta-active substances RZBA-04-04M
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Radiometer contamination surfaces of alpha- and beta-active substances RZBA 04-04M (hereinafter Radiometer) for measuring the contamination of the surface (skin or clothing personnel) beta and alpha-active substances (for alpha and beta flux density particles incident on the input window of detection units) and alarm on exceeding (or exceeded) the established thresholds.
Special occupancy stationary BDZB detection blocks on the radiometer body allows simultaneous measurement of 18 portions contamination clothing surface (or integument) human beta-active substances. Measuring the rest portions provided
Radiometer RZBA-04-04M BDZB remote detecting unit (for measuring beta contamination active compounds) and the external BDZA detection unit (for measuring contamination alpha- active substances). Relates to means of measuring technique with the threshold device in which sound and light alarm is triggered when exceeding the preset threshold level of contamination of beta- and alpha-active substances.
radiometer RZBA-04-04M outputs a signal of "pure" and unlock prohibition device output, if none of the stationary channel has not occurred exceeding the level of contamination of beta -. active substances over a given threshold
radiometer RZBA-04-04M outputs a signal of "dirty" in the case of excess beta contamination levels - active substances over a given threshold, at least one stationary channel.
The radiometer RZBA-04-04M is able to connect to a local area network (LAN) via RS485 interface (or, on request, RS232).
Detection units BDZB and provide conversion BDZA flow beta and alpha particles, respectively, in a statistically distributed sequence of voltage pulses, the frequency of which depends on the flux density particles.
measurement units VAR-07 and the BOI 04 provide analysis and mathematical processing flow of electrical pulses from the detecting units, output of signals on exceeding or not exceeding the preset threshold (using the "CONTROL" indicators " clean "and" dirty ") and a numerical indication of the measurement results.
specifications
| measurement range radiometer beta flux density particles from the surface, m -1 ∙ cm -2 ; in the range of energies of beta particles, MeV | 5 to 15,000 from 0,15 to 2,5 limits permissible relative error measuring radiometer flux density of beta particles if the confidence level does not exceed 0.95% | ± 30 | measurement range radiometer alpha flux density particles from the surface, & nbsp; m -1 ∙ cm -2 | in the energy range of the alpha particles, MeV < / td> | from 0.1 to 10000 from 4,13 to 5,6 limits permissible relative error measuring radiometer flux of alpha particles from the surface if the confidence level does not exceed 0.95,% | ± 30 | The sensitivity of the & nbsp; blocks & nbsp; detection & nbsp; BDZB & nbsp; beta-radiation from the working standard & nbsp; Sources of type SB with & nbsp; radionuclides 90 Sr + 90 Y, however, (counts / s) / (m -1 ∙ cm -2 ): | - for channels №1¸13, 16-19; - & nbsp; for the channels №14 and №15 | 0,5 < / span> 0,3 sensitivity detecting unit BDZA to alpha radiation from the working reference sources such P9 with a radionuclide 239 Pu, however, (counts / s) / (m -1 ∙ cm -2 ) | 0,2 | sensitivity detecting unit BDZA to alpha radiation from working standard type with a radionuclide sources U8 238 U however, (counts / s) / (m -1 ∙ cm -2 ). | 0,08 | The sensitivity of the detection unit BDZA to alpha radiation from sources such as the working standard V4 with the radionuclide < sup> 234 U however, (counts / s) / (m -1 ∙ cm -2 ) | 0,04 | alarm threshold levels can be set individually for each measurement channel , M -1 ∙ cm -2 : | - for detecting unit BDZA within; - BDZB for detecting blocks within | 0.1 9999 from 5 to 9999 Resolution set thresholds, min -1 ∙ cm -2 : | - at threshold levels of less than 5 m -1 ∙ cm -2 ; - at thresholds over 5 min -1 ∙ cm -2 | 0,1 1 continuous operation time, hours a day | Unlimited | Operation mode setup time, min < td> 2 | Instability of the radiometer for continuous operation time 24 hours not more than,% | 5 | consumption power according to the power consumed by the connected to the analyzer unit and the detecting devices is not more than, VA | 150 | MTBF radiometer & nbsp; at least, & nbsp; h | 10,000 | The average service life of the radiometer at least, years | 10 | Documentation for download of the device not available |