Radiation what is a rem

Source: ICRP, ICRP Publication ICRP 33 4. The radiation weighting factor wR for neutrons introduced in Publication 60 ICRP, as a discontinuous function of the neutron energy - — - and the proposed modification —. Calculation of Shielded Dose Rate in rems Assume the point isotropic source which contains 1. See also: Gamma Ray Attenuation See also: Shielding of Gamma Rays Solution: The primary photon dose rate is attenuated exponentially , and the dose rate from primary photons, taking account of the shield, is given by: As can be seen, we do not account for the buildup of secondary radiation.

Radiation Protection: Knoll, Glenn F. ISBN Stabin, Michael G. Martin, James E. January Nuclear and Reactor Physics: J. Lamarsh, Introduction to Nuclear Reactor Theory, 2nd ed. Lamarsh, A.

Baratta, Introduction to Nuclear Engineering, 3d ed. Glasstone, Sesonske. Nuclear and Particle Physics. Physics of Nuclear Kinetics. Addison-Wesley Pub. Paul Reuss, Neutron Physics. EDP Sciences, ISBN: See also: Equivalent Dose.

Edit article. View revision history Report problem with Article. Citation, DOI and article data. Bell, D. Rem unit. Reference article, Radiopaedia. Microrem Millirem Roentgen equivalent man rem Roentgen equivalent man unit. Radiation damage to the intestinal tract lining will cause nausea, bloody vomiting and diarrhea.

This occurs when the victim's exposure is rems or more. The radiation will begin to destroy the cells in the body that divide rapidly. Because reproductive tract cells divide rapidly, these areas of the body can be damaged at rem levels as low as Long-term, some radiation sickness victims will become sterile.

These include: The size of the dose amount of energy deposited in the body The ability of the radiation to harm human tissue Which organs are affected The most important factor is the amount of the dose - the amount of energy actually deposited in your body.

Dose rem Effects Possible late effects; possible chromosomal damage. Hair The losing of hair quickly and in clumps occurs with radiation exposure at rems or higher. Brain Since brain cells do not reproduce, they won't be damaged directly unless the exposure is 5, rems or greater. Thyroid Certain body parts are more affected by exposure to different types of radiation sources than others.

Explained: rad, rem, sieverts, becquerels. A guide to terminology about radiation exposure. David L. Publication Date :. Some reports talk about millisieverts while others talk about rem or becquerels, when what most people really want to know is much simpler: Can I drink the milk? Is it safe to go home? Should people in California be worried?