Transcription of Chapter 4 RADIATION MONITORING INSTRUMENTS
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Chapter 4 RADIATION MONITORING INSTRUMENTS
101 Chapter 4 RADIATION MONITORING INSTRUMENTSG. R AJA NMedical Physics and Safety Section,Bhabha Atomic Research Centre,Mumbai, Maharashtra, IndiaJ. I Z E W S K ADivision of Human Health, international Atomic Energy Agency,Vienna INTRODUCTIONR adiation exposure to humans can be broadly classified as internal and external exposure. Sealed sources, which are unlikely to cause internal exposure, are used almost exclusively in radiotherapy. This Chapter deals with the MONITORING of external exposures. External exposure MONITORING refers to measuring: RADIATION levels in and around work areas; RADIATION levels around radiotherapy equipment or source containers; Equivalent doses received by individuals working with RADIATION . RADIATION MONITORING is carried out: To assess workplace conditions and individual exposures; To ensure acceptably safe and satisfactory radiological conditions in the workplace; To keep records of MONITORING , over a long period of time, for the purposes of regulation or good practice.
protection dosimetry are set forth by the International Commission on Radiation Units and Measurements (ICRU). The recommendations on the practical application of these quantities in radiation protection are established by the International Commission on Radiological Protection (ICRP).
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