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Radiation Monitoring. All Dosimeters Will Be Surveyed for Radioactive Contamination When Collected for Processing

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Radiation Monitoring. All Dosimeters Will Be Surveyed for Radioactive Contamination When Collected for Processing VISTA Technologies, Inc. Radiation Safety Program PROCEDURE -11 RADIATION MONITORING TECHNOLOGIES 1019 Central Parkway North, Suite 115 San Antonio, Texas 78232 210-494-4282 VISTA Technologies, Inc. Radiation Safety Program PROCEDURE -11 RADIATION MONITORING TECHNOLOGIES 1019 Central Parkway North, Suite 115 San Antonio, Texas 78232 210-494-4282 TABLE OF CONTENTS I IN ITIA L ENV IRONM ENTA L M ONITORIN G .................................................................................................. 1 2 RA DIATION A CTION LEVELS ......................................................................................................................... 2 3 IONIZING AND NON-IONIZING RADIATION INSTRUMENT IDEOLOGY ............................................ 2 4 M AJOR TYPES OF DETECTORS ....................................................................................................................... 2 4.1 Ionization Cham bers ...................................................................................................................................... 2 4.2 Proportional Counters .................................................................................................................................... 3 4.3 Geiger-M ueller Detectors .............................................................................................................................. 3 4.4 Scintillation Detection M edia ........................................................................................................................ 3 4.5 Solid State Detectors ...................................................................................................................................... 3 5 ION IZIN G RADIATION SURVEY INSTRUM ENTS .................................................................................... 3 5.1 Geiger-M ueller Detectors ............................................................................................................................. 3 5.2 Proportional Survey Instrum ents .................................................................................................................. 5 5.3 Scintillation Survey Instrum ents .................................................................................................................... 6 5.4 Solid State Radiation Detectors ..................................................................................................................... 7 6 PERSON AL M ONITORING DEVICES ...................................................................................................... 8 6.1 Pocket Dosim eter ........................................................................................................................................... 8 6.2 Pocket Ionization Cham ber ............................................................................................................................ 9 6.3 Therm oluminescent Dosim eter .................................................................................................................... 10 6.4 Film Badge .................................................................................................................................................. 10 6.5 Neutron Dosim etry ...................................................................................................................................... 11 7 PERSONAL DOSIM ETRY ................................................................................................................................. 11 7.1 Policy ........................................................................................................................................................... 11 7.2 Responsibility .............................................................................................................................................. 11 7.3 General Requirem ents .................................................................................................................................. 11 7.4 Radiation Areas ............................................................................................................................................ 11 7.5 Casual V isitors ............................................................................................................................................. 12 7.6 Personnel Dosimetry .................................................................................................................................... 12 7.6.1 Dosim eter Perform ance Criteria ...................................................................................................... 13 7.6.2 Personnel Dosim etry Selection ............................................................................................................. 13 7.6.3 Dosim etry W earing Period .................................................................................................................. 13 7.6.4 Pocket Ionization Cham ber Em ployee Log .................................................................................... 14 7.6.5 Pocket Ionization Quality Control ................................................................................................... 14 7.7 Issuing Dosim etry ......................................................................................................................................... 14 7.7.1 New Em ployee Training ...................................................................................................................... 14 7.7.2 Forms: Initial Em ploym ent .................................................................................................................. 15 7.7.3 Form s: During Em ploym ent ................................................................................................................ 15 7.7.4 Dosim eter W earing Location ............................................................................................................... 16 7.8 Control and Issuance of Pocket Ionization Cham bers ............................................................................. 16 7.8.1 Scope .................................................................................................................................................... 16 7.8.2 Purpose ................................................................................................................................................ 16 7.8.3 References ............................................................................................................................................ 16 7.8.4 Precaution ............................................................................................................................................. 17 7.8.5 Responsibilities .................................................................................................................................... 17 7.8.6 Procedures ............................................................................................................................................ 17 7.9 Dosim etry Records ...................................................................................................................................... 18 7.10 Lost Dosim etry ............................................................................................................................................ 18 7.11 Exposure Investigation ................................................................................................................................ 18 7.12 Exposure Adm inistrative Approval ........................................................................................................ 19 8 N EUTRON D ETECTION IN STRUM ENTATION ...................................................................................... 19 9 ADDITIONAL SITE CHARACTERIZATION INSTRUMENTATION ....................................................... 19 List of Tables Table 1- Initial Em ploym ent Form s ........................................................................................... 15 T able 2 - Site R ecords (Exposure R elated Form s) .................................................................... 15 LIST OF ATTACHMENTS Attachment Number Title of Attachment 1. 16 Occupational Radiation Exposure History 2. 49 Personnel Dosimeter Record Form 3. 56 Lost Badge Report 4. 61 Exposure Extension Authorization Form NRC Form 4 Cumulative Occupational Dose History Procedure 11 Attachments ABBREVIATIONS AND ACRONYMS cX - Alpha 1 - Beta Y - Gamma p - Micro 24Am - Americium-241 17 Ce - Cesium-137 234 Pa - Protactinium-234 210 Pb - Lead-210 210po - Polonium-210 24po- Polonium-214 218 PO - Polonium-218 2 32 PU - Plutonium-232 226Ra Radium-226 228 Ra - Radium-228 219-n Radon-219 (Actinium Series) 220pn- Radon-220 (Thorium Series) 222n - Radon-222 (Uranium Series) 89 Sr - Strontium-89 "°Sr - Strontium-90 2 3 0 Th - Thorium-230 232 Th - Natural Thorium 238 U - Uranium-238 pCi - MicroCurie pCi/hr - MicroCuries per hour pCi/ml - MicroCuries per milliliter [M - Micrometer pR/hr - MicroRoentgen per hour pg/mg - Microgram per milligram ALARA - As low as reasonably achievable ALl - Annual limit on intake ANSI - American National Standards Institute APR - Air-purifying respirator Bq - Becquerel 3 Bq/m - Becquerels per cubic meter of air BZ - Breathing Zone C - Coulomb C/kg - Coulombs per kilogram CDE - Committed Dose Equivalent CEDE - Committed Effective Dose Equivalent CFR - Code of Federal Regulations Ci
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