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  • PNNL-18943

    Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830

    Functional Evaluation of the DOZA DKG-05D Electronic Dosimeter System R.K. Piper R.I. Scherpelz October 2009

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    Contents

    1.0 Introduction ................................................................................................................................ 1

    1.1 Scenario for Use ................................................................................................................. 1

    1.2 Evaluation Goals ................................................................................................................ 2

    2.0 Non-Radiological Evaluations .................................................................................................... 4

    2.1 Mechanical Characteristics ................................................................................................ 4

    2.1.1 Evaluation Protocol ................................................................................................. 4

    2.1.2 Results ..................................................................................................................... 4

    2.2 Exterior Markings .............................................................................................................. 5

    2.2.1 Evaluation Protocol ................................................................................................. 5

    2.2.2 Results ..................................................................................................................... 5

    2.3 Units of Readout................................................................................................................. 6

    2.3.1 Evaluation Protocol ................................................................................................. 6

    2.3.2 Results ..................................................................................................................... 6

    2.4 Range Capabilities.............................................................................................................. 6

    2.4.1 Evaluation Protocol ................................................................................................. 6

    2.4.2 Results ..................................................................................................................... 7

    2.5 Zero Effect/Background Response ..................................................................................... 7

    2.5.1 Evaluation Protocol ................................................................................................. 7

    2.5.2 Results ..................................................................................................................... 7

    2.6 Zeroing ............................................................................................................................... 8

    2.6.1 Evaluation Protocol ................................................................................................. 8

    2.6.2 Results ..................................................................................................................... 8

    2.7 Instructions ......................................................................................................................... 8

    2.7.1 Evaluation Protocol ................................................................................................. 8

    2.7.2 Results ..................................................................................................................... 9

    2.8 Power .................................................................................................................................. 9

    2.8.1 BatteryGeneral .................................................................................................... 9

    2.8.2 Battery24 Hour Response Consistency ............................................................... 9

    2.8.3 BatteryResponse Consistency at Battery Indication/Length of Response ......... 11

    2.8.4 Consistency of Response Following Power Loss .................................................. 16

    2.8.5 Charging Notes ...................................................................................................... 18

    2.9 Humidity Response .......................................................................................................... 19

    2.9.1 Evaluation Protocol ............................................................................................... 19

    2.9.2 Results ................................................................................................................... 19

    2.10 Temperature Dependence ................................................................................................. 20

    2.10.1 Evaluation Protocol ............................................................................................... 20

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    2.10.2 Results ................................................................................................................... 21

    3.0 Radiological Evaluations .......................................................................................................... 23

    3.1 Introduction ...................................................................................................................... 23

    3.2 Dose Dependence ............................................................................................................. 23

    3.3 Dose Rate Dependence ..................................................................................................... 24

    3.4 Photon Energy Dependence ............................................................................................. 25

    3.4.1 Evaluation Protocol ............................................................................................... 26

    3.4.2 Results ................................................................................................................... 26

    3.5 Wear Orientation .............................................................................................................. 27

    3.5.1 Evaluation Protocol ............................................................................................... 27

    3.5.2 Results ................................................................................................................... 27

    4.0 Conclusions and Recommendations ......................................................................................... 28

    4.1.1 Functional Considerations ..................................................................................... 28

    4.1.2 Battery ................................................................................................................... 29

    4.1.3 Dose Measurement ................................................................................................ 29

    5.0 References ................................................................................................................................ 30

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    Figures

    Figure 1. Assumed Blinking Battery Symbol .................................................................................. 14

    Figure 2. Assumed Low Battery Warning Symbol .......................................................................... 14

    Figure 3. Humidity Dependence Evaluation Sequence .................................................................... 20

    Figure 4. Temperature Dependence Evaluation Sequence .............................................................. 22

    Figure 5. Results of Dose Dependence Testing ............................................................................... 24

    Figure 6. Results for the Evaluation of Dose Rate Dependence ...................................................... 25

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    Tables

    Table 1. Evaluation Overview ........................................................................................................... 3

    Table 2. DOZA DKG-05D Physical Specifications .......................................................................... 4

    Table 3. Background Response of the DOZA DKG-05D Electronic Dosimeter ............................... 7

    Table 4. Battery Conditions and Alarm Thresholds Prior to Initiation of 24-Hour Response

    Consistency Evaluation ............................................................................................................. 10

    Table 5. Ambient Conditions During Evaluation of 24-Hour Response Consistency ..................... 10

    Table 6. 24-Hour Response Consistency of the DOZA DKG-05D Electronic Dosimeter .............. 11

    Table 7. Condition of Dosimeters at the Initiation of Testing for Response Consistency at

    Battery Indication ..................................................................................................................... 12

    Table 8. Response Consistency of the DOZA DKG-05D Electronic Dosimeter at Battery

    Warning .................................................................................................................................... 14

    Table 9. Response Consistency of the DOZA DKG-05D Electronic Dosimeter Prior to Shutdown

    Due to Low Power .................................................................................................................... 15

    Table 10. Nominal Time Between Identified Battery Warning and Eventual Shutdown ................ 15

    Table 11. Ambient Conditions During Evalua

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