Which of the following personnel radiation monitors will provide an immediate reading
Disclaimer: Disclaimer: Reference on this page to any specific commercial product, process, service, manufacturer, or company does NOT constitute its endorsement or recommendation by the U.S. government or the U.S. Department of Health and Human Services or any of its agencies. Products are displayed as examples only. HHS is not responsible for the contents of any "off-site" Web page referenced on this site. Dosimeter Equipment Category Description Advantages and Disadvantages Handheld survey meters Examples: Advantages: Limitations: Personal dosimeter Examples: Advantages: Limitations: Pocket ionization chamber Examples: in photo below older versions on top, newer version on bottom of photo below Advantages: Limitations: Electronic personal dosimeter (EPD) Examples: Advantages: Limitations: Personal emergency radiation detectors (PERDs) and monitors Examples: Advantages Limitations Non-alarming PERDs Examples: RadTriage50Sensor® formerly known as SIRAD® Advantages Limitations Personal radiation detectors (PRDs) Examples: Advantages Limitations Extended range personal radiation detectors (ER-PRDs) Examples: Advantages Limitations
Radioisotope identification device (RIID) Examples: Advantages Limitations Source: Table above adapted from 2 documents: Abbreviations: R = roentgens; Gy = gray ; Sv = sieverts Radiation emergency worker: those who would be called upon to assist with the response to a radiation incident even though their regular job does NOT expose them to
levels of radiation higher than normal background radiation Traditional radiation workers: those whose occupations involve exposure to radiation and who are part of an occupational radiation dose monitoring and protection program Radiation Zones are defined by the measurement of R in air at the perimeter of a zone; it could be "hotter" inside the perimeter line. isodose maps are created, and they are similar to maps with isobars or isotherms.
See REMM graphic. This graphic relates to fallout after an IND but these zones could be defined in other kinds of incidents. Outdoor Radiation Zones as defined by NCRP: Dangerous Radiation Zone: >10 R/h (>0.1 Sv/h); Hot zone >10 mR/h (>0.1 mSv/h); Cold zone: < 10
mR/h (<0.1 mSv/h) beyond this perimeter. Other organizations have different names for these radiation zones, as noted on REMM: What are the personnel monitoring devices in radiation?2.1 Personnel monitoring through “Determination” of radiation dose: Determination of radiation dose involves use of individual personnel monitoring devices (i.e. TLD badges, pocket dosimeters) and is generally required for those workers who are occupationally exposed to radiation and, in their course of work are ...
Which is the most common personnel monitoring radiation device?Thermoluminescent dosimeters (TLDs) are the primary method of detection used for monitoring doses received from radiation. These can be obtained from commercial vendors as badges to measure whole-body doses or as rings to measure extremity doses.
Which of the following three types of personal radiation monitoring devices is most sensitive?The pocket ionization chamber, which resembles an ordinary fountain pen, is considered to be the most sensitive type of personnel dosimeter. There are two types of pocket dosimeters: self- reading and non self-reading.
What is used to measure the radiation exposure received by personnel?Employees whose job duties result in exposure to radiation may be assigned dosimeters to monitor their exposure. Depending on the source and amount of exposure, this may include whole body badges, rings or both.
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