How do I reset my dosimeter?
The dosimeter is reset by charging it with electricity using with a dosimeter charger (pictured at right with dosimeter on charging contact). This device fills the inner chamber of the dosimeter tube with a high voltage charge.
What is pocket dosimeter used?
Pocket dosimeters are used to provide the wearer with an immediate reading of his or her exposure to x-rays and gamma rays. As the name implies, they are commonly worn in the pocket. The two types commonly used in industrial radiography are the Direct Read Pocket Dosimeter and the Digital Electronic Dosimeter.
What is a radiological dosimeter charger?
Description. The CDV-750-5b Dosimeter Charger is a self contained battery-operated instrument. It will charge to zero any self-reading dosimeter which has a standard military or O.C.D.M. charging end. Specifically designed for use with MILITARY O.C.D.M.
What is a high level for a radiation dosimeter?
The maximum annual regulatory limit for radiation workers is 5,000 mrem Deep dose (DDE), 15,000 mrem Lens dose (LDE), and 50,000 mrem Shallow dose (SDE). National Average Annual Exposure from background (non-occupational) radiation is 625 mrem (NCRP 160, 2006).
Which dosimeter comes in two types?
2 Personnel Dosimeters There are two general types: dosimeter badges, which are used to measure cumulative doses over periods of weeks or months, and pocket dosimeters, which are generally used for monitoring over a shorter term.
How often should dosimeters be read?
(c) Pocket dosimeters, or electronic personal dosimeters, must be checked at periods not to exceed 12 months for correct response to radiation, and records must be maintained in accordance with § 34.83. Acceptable dosimeters must read within plus or minus 20 percent of the true radiation exposure.
What units do dosimeters use?
More specifically, radiation dosimetry is the calculation of the absorbed dose in tissue resulting from exposure to ionizing radiation. Dose is reported in units of gray (Gy) for mass, and dose equivalent is reported in units of sieverts (Sv) for biological tissue, where 1 Gy or 1 Sv is equal to 1 joule per kilogram.