Doza RPOGRESS-GAMMA Kullanıcı Kılavuzu - Sayfa 6

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2.2.3 Turn on the PC. Warm up the gamma-spectrometer for 30 minutes.

2.2.4 Start the «Progress» software by clicking on the corresponding icon on the desktop.

2.2.5 Detailed description of steps during operation of the gamma-spectrometer is presented in

the following documentation that comes with spectrometer:

- Procedure for performance testing of the spectrometric complex «Progress» for activity

measurement of alpha-, beta-, and gamma-emitting radionuclides (gamma-channel);

- Procedure manual for measurement of radionuclides activity using the scintillation gamma-

spectrometer with software «Progress»;

- Software for complexes «Progress» for spectrometric and radiometric measurements User

manual;

- Set of documents on performing radiation monitoring of foodstuff using spectrometric and

radiometric complex «Progress».

3 MAINTENANCE

3.1 General notes

3.1.1 Maintenance of the gamma-spectrometer shall be performed with the purpose of ensuring

operability during all life time. Types and terms of maintenance are shown on the section 3.3.

3.1.2 Performance testing is carried out during annual calibration of the gamma-spectrometer in

accordance with the procedure described in the section 4.

3.1.3 Safety measures indicated in the section 3.2 should be followed during maintenance of

the gamma-spectrometer.

3.2 Safety precautions

3.2.1 All work associated with the operation must be performed in accordance with instructions

for safety and radiation safety applicable in the enterprise.

3.2.2 Maintenance of the gamma-spectrometer is carried out by persons:

trained in operation of radiometric and spectrometric instrumentation;

having permission for work with high voltage supplies;

having permission for work with sources of ionizing radiation.

3.2.3 When performing work one should pay special attention to condition of the power cord

and power switch – dangerous voltages can be present in that locations.

3.3 Maintenance routine

Maintenance is divided into routine and periodic.

3.3.1 Routine maintenance

Routine maintenance is carried out during regular operation of the gamma-spectrometer; it

includes daily dust removal from outer surfaces and measuring gamma-radiation background. Upon

increasing of the gamma-radiation background perform decontamination of outer surfaces of the

detector unit and inner surfaces of the lead shielding. It is necessary to wash measurement vessels

(Marinelli beakers and Petri dishes) with suds after each measurement.

It is necessary to inspect connecting cables, switches and connectors, wipe leads of plugs and

sockets with ethyl alcohol (total ethyl alcohol consumption - 150 g).

3.3.2 Periodic maintenance

Periodic maintenance includes check of the technical condition of the gamma-spectrometer; it

shall be performed on a regular basis, at least once a month. The check is performed by means of

measurement of a count rate from calibration sources using specified mode of operation of the

spectrometer.

FVKM.412131.002-03RE