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MI1028 Rev B
Tracerco Profiler
– Radiological User’s Guide
Page 1: ...1 MI1028 Rev B Tracerco Profiler Radiological User s Guide...
Page 2: ...Approximate weights 12 5 3 Dimensions of main profiler components 12 5 3 1 High Temperature Profiler Shown Left 12 5 3 2 Standard Profiler Shown Right 12 5 4 Mechanical Installation By Site 13 5 4 1 I...
Page 3: ...10 Rules for Disposal 24 11 Leakage Testing 24 12 Maintenance 25 12 1 Routine Maintenance Inspection 26 13 Document Control 26 14 Appendix A Isodose plots 27 15 Appendix B 30 15 1 Recommended Bolt Tor...
Page 4: ...sity distribution within vessels to be made Figure 1 Typical Separation values The instrument uses a vertical array of sources and detectors Geiger M ller Tubes to measure and map the different proces...
Page 5: ...contains a series of sources distributed along its length The rod is attached to an arming mechanism allowing the user to isolate the sources within the device The collimator has a series of small ho...
Page 6: ...y or interface profile of the vessel to be constructed Density bands are allocated for each of the six phases Sand Water Emulsion Oil Foam and Gas The top level of these phases can then be calculated...
Page 7: ...nterface and Density A change in the amount of detected radiation passing through the material indicates a change in a process variable Ionizing Radiation is harmful to the human body when absorbed at...
Page 8: ...f radiation can have a significant impact on reducing the exposure 4 4 Shielding Shielding the radioactive source greatly reduces the radiation field Radioactive sources supplied by Tracerco are conta...
Page 9: ...ive materials For example for a nuclear gauge containing a Ameriscium 241 source contamination occurs only if a breach of the source capsule occurs and radioactive material leaks out If such a breach...
Page 10: ...e The crate will be suitable for handling by a forklift truck or a suitable hoist and slings and will clearly display lifting information centre of gravity etc To unpack the system remove the lid of t...
Page 11: ...s below use a crane appropriately connected to the two eyebolts An operative should support the end of the dip pipe while the instrument is lifted in order to avoid excessive strain on the end of the...
Page 12: ...1 High Temperature Profiler Shown Left Height of Dome and neck arrangement 1200mm Width of dome and neck arrangement 360mm Length of dip pipes from top of dip pipe flange to bottom of dip pipes 1000m...
Page 13: ...ntegrity of the titanium dip pipe assembly must be protected by a suitable sized relief valve fitted to the vessel 5 4 1 Installation of Support Bracket The support bracket is an option that is not us...
Page 14: ...vessel calculations for suggested gasket type and bolt torque settings All nuts to be capable of being run down their respective bolts by hand Ensure threads are suitably lubricated Assemble the join...
Page 15: ...r to arrival of the sources the site license should be amended to include the additional sources Tracerco s Radiation Safety Officer RSO or Radiation Protection Advisor RPA may be contacted for advice...
Page 16: ...s action withdraws the sources behind a shield and reduces the dose rate to less than 7 5 micro Sieverts hr at a distance of 10cm Because it is not possible to receive an effective body dose 7 5 micro...
Page 17: ...17 MI1028 Rev B Figure 8 Source isolation mechanism Figure 9 Thumb Screw and Gaiter Thumb screw Quick Release Mechanism Z Rubber Gaiter to prevent water ingress Isolation Lever...
Page 18: ...rces A second locks the collimator to the dip pipe Figure 10 Arming Rod locked into collimator The sources sit inside the arming rod holes shown in Figure 11 These sources sit on a ledge inside the ho...
Page 19: ...pe and contains the sources and mechanism Should a radiation leak occur then the radiation substance should remain in the dip tubes Figure 12 Source Rod and Collimator Open Position Figure 13 Source R...
Page 20: ...dress and Model of the container instrument Unique Serial number of container Date of manufacture of the container instrument Dose Rate measured at 1m and date taken The radioactive isotope and nomina...
Page 21: ...located in is sealed and the arming disarming of the sources has to be performed by removing the dome and depressurising the sealed pipe Then the pressure indicator and valves as shown in Figure 15 o...
Page 22: ...the three dip tube array While it is not dangerous to approach the dip tubes closely for short periods it is recommended that workers do not go within 10 cm of the dip tubes unless necessary When wor...
Page 23: ...nt continue with the installation procedure 9 4 Loss or theft of Radioactive Source On finding loss or theft of a radioactive source immediately advise site personnel and Radiation Protection Advisor...
Page 24: ...able make safe the radioactive source vacate area and follow site evacuation emergency response plan Advise plant personnel or emergency services of the location and status of the radioactive source I...
Page 25: ...tenance Only qualified personnel may carry out any repairs to the radiation source mechanism installation We advise that Tracerco Services engineers carry out all repairs with respect to these mechani...
Page 26: ...ources are in the retracted position and that the condition changes when the sources are re armed Should the shutter resist movement become stuck or otherwise not operate correctly then Tracerco shoul...
Page 27: ...27 MI1028 Rev B 14 Appendix A Isodose plots...
Page 28: ...28 MI1028 Rev B...
Page 29: ...29 MI1028 Rev B...
Page 30: ...6 66 1 1 4 60 73 73 100 100 113 1 1 2 78 113 113 148 148 165 2 90 113 113 148 148 165 2 1 2 125 125 125 148 148 165 3 120 155 155 178 225 248 3 1 2 140 175 175 N A N A N A 4 175 219 253 320 352 417 5...
Page 31: ...S 600 CLASS 900 CLASS 1500 CLASS 2500 CLASS 1 2 N A 29 29 62 62 77 3 4 N A 55 55 76 76 97 1 35 63 63 93 93 142 1 1 4 45 78 78 115 115 228 1 1 2 61 127 127 179 179 335 2 122 65 65 143 144 205 2 1 2 185...
Page 32: ...rofiler Isolation of source rod is required before any personnel can enter Kristin Vessels during maintenance Please note the internal vessel areas will still be classified as a controlled area barrie...
Page 33: ...ture rise of the vessel this rise should not be approaching vessel operating pressure if vessel operating pressure is shown on the gauge then the system must be re evaluated for the potential loss of...
Page 34: ...visor 6 Install source rod actuating lever onto to Profiler attaching the tip to the wire rope end coupling Fasten all necessary bolts Lever should be retained with the profiler even when not fitted i...
Page 35: ...ked to confirm that density readings are all high the HMI should be graphically showing the highest set density band usually SAND 10 Before entering vessel using a Tracerco T 202 radiation monitor or...
