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JSC SPC ASPECT > Products > Personnel contamination monitors > RZS-02A

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RZS-02A

Personnel contamination monitor

 

Intended use

  • Monitoring of skin, overalls, special footwear and other personal protective equipment for contamination with beta active radionuclides
  • Detection of gamma contamination of personnel

 

 

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Category: Personnel contamination monitors Tag: Nuclear power industry
  • Description
  • Specifications and Performance
  • Certification

Description

Application

The RZS-02A Personnel Contamination Monitor can be used for compulsory radioactive contamination screening of personnel at nuclear enterprises, as well as personnel involved in remediation of contaminated areas and elimination of the consequences of radiation accidents. The monitor complies with the requirements of STO 1.1.1.02.004.1078-2015 “Stationary radioactive contamination monitors for monitoring of nuclear power plant personnel. General technical requirements, types and test methods”.

Design and operation

The RZS-02A Personnel Contamination Monitor is a measuring booth containing 25 detecting units and a panel computer. Its detecting units are based on thin plastic scintillators highly sensitive to gamma and beta radiation. 24 detecting units are used to check personnel, and one detecting unit is used to check small items. The arrangement of detecting units in RZS-02A ensures effective monitoring of the entire body, including the head. The monitor includes position sensors to ensure correct position of the person in the booth during the measurement.

RZA-02A is equipped with a touch screen panel computer with built-in functional and technological software that processes measurement information, controls the monitor operation in automatic mode, transfers the measured parameters, as well as data on the technical condition of the devices to the upper level of the automated radiation monitoring system.

If the threshold levels of contamination are exceeded, the entrance and exit swing doors are blocked, and the monitor issues an alarm message, including:

  • sound signal (voice message),
  • light signal,
  • a mnemonic scheme displayed on the panel computer screen indicating the place and type of gamma and/or beta contamination detected on the object,
  • measured beta contamination values displayed on the panel computer screen.

 

Features and performance

  • Separate registration and processing of beta and gamma radiation by each detecting unit
  • Transfer of measured parameters, as well as data on the technical condition of devices to external devices of the automated radiation monitoring system
  • Optional video system to record the person being screened at the level of their faces using video cameras with two-way audio communication
  • Automatic monitoring of RZS-02A configuration and operability of detecting units
  • Automatic gamma background compensation
  • Visual and voice support for the measurement procedure
  • Double barrier at the entrance and exit to prevent unauthorized crossing of the controlled zone
  • Easy decontamination due to stainless steel housing
  • Supports identification of the screened personnel using electronic cards (passes) used at the NPP

Specifications and Performance

Range of measured beta energies

0.1 to 2.5 MeV

Range of detected gamma energies

0.05 to 3 MeV

Range of measured beta flux density

1 to 15000 part/min·cm²

Minimum detectable activity of ¹³⁷Cs gamma sources

(2.0 ± 0.3) kBq

False alarm rate for gamma sources

0.001 maximum

Tolerable basic relative error of beta particles flux measurement (φ) with confidence level Р = 0.95 %

±(19 + 10/φ) % maximum

Range of settable thresholds for beta alarms

1 to 15000 part/(min·cm²)

Threshold setting resolution over the entire measurement range

1 part/min·cm²

Detector sensitive area

for monitoring the body surface: 600 cm²
for monitoring small items: 450 cm²

Number of detectors for monitoring the body surface

24

EMC Group according to GOST 32137

III A

Interface for data transfer to higher levels of the automated radiation monitoring system

Ethernet and (or) RS485

Operating conditions

+5 to +50 °С

Power supply

(187 – 242) V, (47 – 51) Hz, 300 V·A

Overall dimensions

(2449×1000×1226) mm

Weight

498 kg

Certification

  • RZS-02A is registered in the State Register of Measuring Instruments under No. 49307-12
  • RZS-02A complies with the requirements for products of safety class 3N according to OPB-88/97, as well as with the Customs Union Technical Requirements “Safety of Low Voltage Equipment” (CU TR 004/2011) and “Electromagnetic Compatibility of Technical Means” (CU TR 020/2011)
  • RZS-02A is certified in the conformity assessment system in the field of atomic energy use (Certificate of Conformity No. OIAE.RU.156 OS.00227)
  • RZS-02A complies with the requirements of STO 1.1.1.02.004.1078-2015 “Stationary radioactive contamination monitors for monitoring of nuclear power plant personnel. General technical requirements, types and test methods”

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JSC SPC ASPECT
8 Sakharova A.D. Street
141980 u.d. Dubna, Dubna
Moscow region, Russia

 

E-mail: aspect@dubna.ru
Phone: +7 496 216-52-72
Fax: +7 496 216-51-08

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