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HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Checks of Portable Radiation Detection.

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Presentation on theme: "HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Checks of Portable Radiation Detection."— Presentation transcript:

1 HPT001.306 Rev. 3 Page 1 of 33 TP-1 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Checks of Portable Radiation Detection Instruments HPT 001.306

2 Rev. 3 Page 2 of 33 TP-2 TVAN Technical Training Health Physics (RADCON) Initial Training Program Enabling Objectives Name Instrument Control Procedure State Calibration Organization State Frequency of Response Checks Identify Response Check Equipment Identify Shepherd Components

3 HPT001.306 Rev. 3 Page 3 of 33 TP-3 TVAN Technical Training Health Physics (RADCON) Initial Training Program Enabling Objectives State Isotopes & Activity for Shepherd Sources Identify Response Window Criteria Identify Instruments Response Checked with Plutonium State Purpose of Scintrex Model 309A

4 HPT001.306 Rev. 3 Page 4 of 33 TP-4 TVAN Technical Training Health Physics (RADCON) Initial Training Program Instrumentation Controls TVAN RCDP-8, “Radiological Instrument/ Equipment Controls”

5 HPT001.306 Rev. 3 Page 5 of 33 TP-5 TVAN Technical Training Health Physics (RADCON) Initial Training Program Instrument Calibration Portable Radiation Detection Instruments Calibrated by: Environmental Radiological Monitoring & Instrumentation (ERM&I) Western Area Radiological Laboratory, (WARL) Muscle Shoals, AL

6 HPT001.306 Rev. 3 Page 6 of 33 TP-6 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check Frequency Teletector & RSO-7Daily Beta-Gamma InstrumentsWeekly Alpha & Beta FriskersWeekly Neutron Dose InstrumentsWeekly On-Site REP InstrumentsWeekly Electronic DosimetersQuarterly

7 HPT001.306 Rev. 3 Page 7 of 33 TP-7 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Checks of Beta-Gamma Dose Instruments Shepherd Model 89 Irradiator - Source Rod Assembly - Shielded Calibration Range Assembly - Attenuator Assembly - Table Assembly

8 HPT001.306 Rev. 3 Page 8 of 33 TP-8 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Source Rod Assembly Cs-137 130 mCi 400 Ci

9 HPT001.306 Rev. 3 Page 9 of 33 TP-9 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Shielded Calibration Range Assembly

10 HPT001.306 Rev. 3 Page 10 of 33 TP-10 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Attenuator Assembly

11 HPT001.306 Rev. 3 Page 11 of 33 TP-11 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Table Assembly

12 HPT001.306 Rev. 3 Page 12 of 33 TP-12 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Precautions Plugs in Unused Access Ports Hands & Fingers Clear of Door Never Lubricate Source Rod Don’t Twist Attenuator Handles Move Table Slowly Utilize Survey Meter

13 HPT001.306 Rev. 3 Page 13 of 33 TP-13 TVAN Technical Training Health Physics (RADCON) Initial Training Program Shepherd Performance Checks Test the Interlock System - Attempt to Raise Source or Open Door with Power Off - Attempt to Raise Source with Door Open - Attempt to Open Door with Source Raised

14 HPT001.306 Rev. 3 Page 14 of 33 TP-14 TVAN Technical Training Health Physics (RADCON) Initial Training Program Establishing Response Windows Expose at Least Four Instruments Exposure Values Near Midscale Set Window for Each Scale

15 HPT001.306 Rev. 3 Page 15 of 33 TP-15 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Window Criteria Arithmetic Mean of all Instruments Calculate Highest Percent Difference Calculate Lowest Percent Difference Discard Highest or Lowest Percent Difference if Exceed 10 Percent Response Window = Mean ± 20 % Expressed as Range

16 HPT001.306 Rev. 3 Page 16 of 33 TP-16 TVAN Technical Training Health Physics (RADCON) Initial Training Program Instrument Pre-Operational Checks Inspect for Damage Inspect Switches, Alarms, Controls Inspect Cables & Power Cords Check Battery Strength Instrument in Calibration

17 HPT001.306 Rev. 3 Page 17 of 33 TP-17 TVAN Technical Training Health Physics (RADCON) Initial Training Program Performing Response Checks with Shepherd Irradiator Position Instrument on Guide - Beta Gamma Survey Meter - Teletector - Electronic Dosimeter

18 HPT001.306 Rev. 3 Page 18 of 33 TP-18 TVAN Technical Training Health Physics (RADCON) Initial Training Program Beta-Gamma Survey Meter

19 HPT001.306 Rev. 3 Page 19 of 33 TP-19 TVAN Technical Training Health Physics (RADCON) Initial Training Program Teletector

20 HPT001.306 Rev. 3 Page 20 of 33 TP-20 TVAN Technical Training Health Physics (RADCON) Initial Training Program Electronic Dosimeter

21 HPT001.306 Rev. 3 Page 21 of 33 TP-21 TVAN Technical Training Health Physics (RADCON) Initial Training Program Performing Response Checks with Shepherd Irradiator Position Attenuators and Platform Close Door Raise Source to make Exposure Lower Source to “Off” Repeat for Each Scale Document Results

22 HPT001.306 Rev. 3 Page 22 of 33 TP-22 TVAN Technical Training Health Physics (RADCON) Initial Training Program Observation Window

23 HPT001.306 Rev. 3 Page 23 of 33 TP-23 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check of Alpha Survey Instruments Alpha Sources, ie Pu-239 Inspect Mylar Windows Perform Light Test Expose Detector Compare Results with Response Log Check Each Scale or Decade Document Results

24 HPT001.306 Rev. 3 Page 24 of 33 TP-24 TVAN Technical Training Health Physics (RADCON) Initial Training Program Alpha Survey Instrument

25 HPT001.306 Rev. 3 Page 25 of 33 TP-25 TVAN Technical Training Health Physics (RADCON) Initial Training Program Neutron Survey Instrument

26 HPT001.306 Rev. 3 Page 26 of 33 TP-26 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check of Neutron Instruments Set up the Instrument Scale Instrument Over Neutron Source Check Other Scales/Decades with Pulse Generator Compare Results with Response Log Document Results

27 HPT001.306 Rev. 3 Page 27 of 33 TP-27 TVAN Technical Training Health Physics (RADCON) Initial Training Program Frisker

28 HPT001.306 Rev. 3 Page 28 of 33 TP-28 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check of Friskers Sources Identified in Response Log Set Frisker to Appropriate Range/Scale Position Probe over Source Repeat for Other Scales Compare Results with Response Log Document Results

29 HPT001.306 Rev. 3 Page 29 of 33 TP-29 TVAN Technical Training Health Physics (RADCON) Initial Training Program Tritium in Air Monitor

30 HPT001.306 Rev. 3 Page 30 of 33 TP-30 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check of Scintrex Model 309A Inspect Filter Paper Ensure Battery >3.0 volts Set Function Switch to ‘Display On’ Press ‘Test’ Button Observe Display < 50

31 HPT001.306 Rev. 3 Page 31 of 33 TP-31 TVAN Technical Training Health Physics (RADCON) Initial Training Program Response Check of Scintrex Model 309A Position Gamma Source on Right Side Wait 1-2 Minutes Observe Reading Between 8 & 24 Depress ‘Test’ Button Document Results

32 HPT001.306 Rev. 3 Page 32 of 33 TP-32 TVAN Technical Training Health Physics (RADCON) Initial Training Program Summary Instrument Calibration Critical Response Checks Confirm Operation Shepherd Model 89 Irradiator Other Response Checks: - Alpha Survey Instruments - Neutron Instruments - Friskers - Tritium-in-Air

33 HPT001.306 Rev. 3 Page 33 of 33 TP-33 TVAN Technical Training Health Physics (RADCON) Initial Training Program Prevent Errors - Reduce Contamination


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