Sigma projetor Job site safety precautions Instruments, Restricted Area, Distance, Shielding

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OPERATING INSTRUCTIONS

Job site safety precautions

Instruments

The radiographer and radiography assistants must at all times wear a film badge or TLD and pocket dosimeter with a range of 0-2 mSv (0-200 mRem). Regulatory requirements in the USA also require that an audible alarm ratemeter be worn at temporary jobsites. Specifically, those locations that are not permanent radiographic installations equipped with functional door interlocks and audible/visual alarms.

Radiographers in the USA must also have a survey meter capable of measuring in the range

20 µSv/hr (2 mR/hr) up to 10 mSv/hr (1,000 mR/hr). Canadian regulations require that survey meters used for industrial radiography be capable of measuring from 2 µSv/hr (0.2 mR/hr) and up to 100 mSv/hr (10 R/hr). In any regulatory jurisdiction, always verify survey meter requirements affecting the range and calibration requirements prior to engaging in industrial radiography operations.

An audible ‘chirper’ pocket alarm may be required in some countries.

Restricted Area

Radiography must be performed only in a restricted area that is marked with the appropriate radiation warning signs and secured against unauthorized entrance.

Distance

Since the source emits high levels of radiation it is good practice to operate the system from as great a distance as possible.

Shielding

Whenever possible, situate the radiographic exposure area in a room with suitably thick walls, floor, ceiling and doors. Whenever possible, the use of a collimator (beam limiter) provides effective shielding to reduce radiation levels outside of the central beam. It is recommended that collimators be used at temporary job sites to minimize occupational exposure to radiation.

Surveillance

Only trained and qualified radiographers or assistants working under their direct supervision may operate radiography systems. The radiographer must be physically present at the site and able to control and limit access to the restricted area.

Locking

Keep the exposure device locked while assembling the system and when not being used to perform radiography. Locked is defined as the exposure device's lock is fully engaged with the key removed. Store the key in a secured location.

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Contents Operating and Maintenance Manual MAN-027-MayTime Page Front View Exposure Device Description Standard Source Assembly Model 880 Delta authorized contentsModel 880 Sigma authorized contents ApplicationsModel 880 Elite authorized contents Model 880 Omega authorized contentsSource output Selected attenuation dataControl Specifications Complete Remote Control Assemblies Source Guide Tube with source stopSource Guide Tube Extension Exposure Device Specifications Manufacturer Length Weight of Exposure Device Type BU CertificationWeight of Depleted Uranium Shield Primary Application WidthMaintenance Requirements Device Operating Temperature RangeSource Assembly ConstructionWarranty and Limitation of Liability Job site safety precautions Instruments Restricted AreaDistance ShieldingExposure Device Survey Source Guide Tube projection sheath LayoutSimultaneously pull and rotate Remote Control Conduit Layout Unlock the plunger lock with the key Important Warning Checks Before Exposure of the Source 1Unlocking Projecting Retracting Confirmatory SurveyLocking the Exposure Device Dismantling equipment Remote control unit Source guide tubesSurveying StorageOperational Features Source Assembly IntroductionSource assembly and remote control cable connectors Exposure DeviceDaily Inspection Instructions Transit Mode Exposure ModeDaily Inspection of the System Daily Inspection of the Exposure DeviceDaily Inspection of the Remote Controls Daily Inspection of the Source Guide TubesRemote Control Inspection Important WarningControl Conduit Inspection Control Cable InspectionImportant Reminder Maintenance Instructions Routine Quarterly Maintenance Requirements Remote Controls Radiographic Exposure DeviceMisconnect Test Routine Quarterly Maintenance Records Annual Maintenance RequirementsLeak Testing Leak Test of the Radioactive Sealed Source Leak Test for Depleted Uranium DUAnnual Maintenance for the Model 880 Series Exposure Devices Model 880 Series Annual Maintenance Requirements Maintenance Instructions Maintenance Instructions Maintenance Instructions Annual Maintenance for the Remote Controls Remote Control Maintenance RequirementsMaintenance Instructions Maintenance Instructions Re-assembly of the Remote Control Unit Quarterly and Annual Maintenance for Source Guide Tubes Source Guide Tube MaintenanceMaintenance Instructions Annual Maintenance Records Considerations of Safety Class a ItemsRear Plate Assembly Rear Plate Assembly Front Plate Assembly Front Plate Assembly Control Assemblies Source Guide Tubes Control Assemblies 222 Transport Package Sample Transportation InstructionsReceipt of Radioactive Material Shipment of Radioactive Material Maximum Radiation Sample Transportation Instructions Sample Transportation Instructions Shipment of Empty Uranium Shielded Containers Sample Transportation Instructions Carriage of Radioactive Material Sample Transportation Instructions Radioactive material transport checklist Area alarm Alarm ratemeterApparatus for industrial gamma radiography Automatic securing mechanismRemote control Exposure headLocked position Maximum ratingSource holder Source changersWorking position Emergencies TrainingAccess to Restricted Areas United States RegulationsEU Regulations Personnel MonitoringDisposal Abc