Radiological Equipment - Advanced - PowerPoint PPT Presentation

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Radiological Equipment - Advanced

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  1. Radiological Equipment - Advanced

  2. Objectives • For each radiation detection instrument: • Perform advanced operating procedures • Become familiar with software • Identify advanced maintenance procedures • Prerequisite training: • Radiation awareness • Basic operation and maintenance of each instrument

  3. IsoTrak DoseGuard

  4. Basic Operation Review • Prepare for operation • Check dose and dose rate • Check alarms

  5. Advanced Operation Overview • Recommended procedures not to be done by operator • Reset default reading • Turn off/on chirp • Reset dose reading to zero • Check/change dose or rate alarm set points • Deactivate dose or rate alarm • Test battery during operation • Use reader and software

  6. Function Settings • Toggle button to feature, hold to reset • Feature options • 1x = non-default display (dose rate) • 2x = OFF • 3x = chirp off/on • 4x = reset dose to zero • 5x = dose alarm display/reset • 6x = rate alarm display/reset • 7x = battery test

  7. Reset Default Reading • Normal default is total dose reading • Can switch with current dose rate reading • Procedure • Press button 1x • Display shows dose rate (non-default) • Hold button until long beep; release • Display shows dose rate as new default

  8. Chirp Feature • “Chirp” alerts user of increased dose rate • Disabled chirp does not mute alarms • Display shows horn if chirp is enabled • Procedure to disable/enable • Press button 3x • Display reads “CHr” • Hold button until long beep, release

  9. Reset Dose to Zero • Verify dose is zeroed before use • Procedure • Press button 4x • Display reads “CLr” • Hold button until long beep • Display shows current dose flashing • Will revert to default if no further action • While flashing, hold button until long beep • Dose resets to zero, returns to default

  10. Check Dose Alarm Set Point • Verify before use • Procedure • Press button 5x • Display reads “dAL” • Hold button until long beep, release • Display shows dose alarm setting, returns to default

  11. Reset Dose Alarm Set Point • Reset to current guidance • Procedure • Check alarm: Press button 5x, display “dAL”, hold • Display shows dose alarm setting for several sec. • During display, toggle button through list of choices • Select zero to disable dose alarm • Hold button until long beep; release

  12. Check Dose Rate Alarm Set Point • Verify before use • Procedure • Press button 6x • Display reads “drA” • Hold button until long beep, release • Display shows rate alarm setting, returns to default

  13. Reset Dose Rate Alarm Set Point • Reset to current guidance • Procedure • Check alarm: Press button 6x, display “drA”, hold • Display shows rate alarm setting for several sec. • During display, toggle button through list of choices • Select zero to disable rate alarm • Hold button until long beep; release

  14. Test Battery During Operation • Use for troubleshooting battery • Procedure: • Press button 7x • Display reads “diA” • Hold button until long beep; release • Alarm sounds for 5 sec. • If battery symbol appears after test, replace battery

  15. Using the Reader • Install software to PC • Use PC to • Prevent user from changing settings via button • Customize settings • Print data

  16. Start Window

  17. Main Window

  18. Quick Configuration Window

  19. Print Configuration Data

  20. Introduction to Maintenance • Operator level • Perform simple, “common sense” checks without tools • Hospital (organization) level • Verify failures • Perform advanced programming or diagnostics • Replace authorized components • Factory or supporting maintenance • Calibrate, repair, rebuild, replace internal components

  21. Advanced Maintenance Overview • System diagnostics • No corrective maintenance • Calibration • Warranty information

  22. System Diagnostics • No user adjustments possible • Note error code and return to factory • Error codes: • Er1 = calibration error • Er2 = fault in nonvolatile RAM • Er3 = fault in detector • Er4 = fault in RAM

  23. Calibration • Frequency: Recommended annually • Based on local protocols • Procedure for sending to factory • Track due date—no surprises • Send instrument to factory • Track shipment until returned • Cost estimate (2006): $40

  24. Warranty Information • 12 months free of defects in material or workmanship

  25. Ultra Radiac

  26. Basic Operation Review • Prepare for operation • Check dose and dose rate • Turn on back light • Check stay time • Data logging • Alarms

  27. Advanced Operation Overview • Recommended procedures not to be done by operator • Reset dose to zero • Use sleep mode • Use source finder mode • Check/change alarm indicators • Check/change dose or rate alarm set points • View data log • Clear data log • Use cable and software

  28. Reset Dose to Zero • Verify dose is zeroed before use • Log data before zeroing • Procedure • Press Dose key, display shows dose reading • If dose not 000, continue • Hold Dose + Clear/Test keys until “000” is displayed

  29. Use Sleep Mode • Extends battery life >1000 hours • Wakes up every 5 minutes • Alarm sounds if preset levels exceeded • Set sleep mode • When installing batteries • Hold Rate + On/Off key • Resume normal operation • Hold On/Off key

  30. Use Source Finder Mode • Purpose: Use as an alternate survey meter • Activate: • Hold Rate key until flashing “1” • Use as survey meter • Audible clicker activated • Deactivate: Hold Rate key until flashing “0”

  31. Check Alarm Set Points • Dose rate alarm set points: High and Low • Press Alarm + Rate keys • Press Rate key to select H or L • Press Clear/Test key to see alarm set point (H or L) • Vibrator alarm active: display also shows “- - -” • Dose alarm set points: High and Low • Same procedure using Alarm + Dose keys

  32. Change Alarm Indicators • Enable/disable visual, audio, or vibration • Procedure (rate alarm): • Check alarm: Rate + Alarm, Rate (H/L), Clear/Test • Press Alarm until desired combination appears • Wait 10 sec. for return to normal display • Dose alarm procedure same, use Dose key

  33. Change Alarm Set Points • Procedure (rate alarm): • Check alarm: Rate + Alarm, Rate (H/L), Clear/Test • Press Clear/Test again to start • Press Rate until desired decimal and units appear, press Clear/Test to select • Repeat for each digit • Same procedure for dose alarm • Use dose key

  34. View Logged Data • View data from instrument • Power Off: Hold Rate + On/Off keys 1 sec. • Displays current log number • Scroll up (Rate) or down (Dose) • Number, rate, dose, next number … • Return to normal: Power Off and On • PC access (advanced operations) • Download, view, or clear data log

  35. Clear Data Log • Recommend download to PC first • Procedure • View data log (power Off, hold Rate + On/Off) • Hold Rate + Alarm, press Clear/Test (all 3) • Display “0” indicates all data cleared • Return to normal: Power Off and On

  36. Using the PC Software • Use the PC to • Print and download logged data • Change instrument parameters • Observe readings in real time

  37. Initializing Setup • Install software to PC • Connect cable between PC and meter • Start software • Set password 12345 • Main screen appears

  38. Main Window

  39. Text File Export • File menu on Main Screen • Export to text or Excel

  40. Interrogate Meter

  41. Advanced Settings

  42. Manage Templates

  43. Monitoring Mode

  44. Advanced Maintenance Overview • Troubleshooting • System diagnostics • No corrective maintenance • Calibration • Warranty information

  45. Troubleshooting

  46. System Diagnostics • Test key function during operational test • Initiate test: Clear/Test, 888  000, press keys • Key codes: • Dose = 002 • Alarm = 010 • Rate = 001 • Light = 020 • Clear/Test = 004 • On/Off = OFF

  47. Calibration • Frequency: Recommended 1-2 yrs • Based on local protocols • Procedure for sending to factory • Track due date—no surprises • Schedule to keep some instruments on hand • Call for tracking # • Send instrument to factory • 2-3 week turnaround • Cost estimate (2006): $125 • FDNY uses local calibration option

  48. Warranty Information • Published in User’s Manual • 1 year free of defects from materials or workmanship • 90 days software operates as specified

  49. Radiation Survey Meter

  50. Controls and Indicators Calibration switch well open to see adjustments