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The U.S. Nuclear Regulatory Commission is holding the first VARSKIN Technical Meeting in October 16-18, 2017 in the Washington D.C. area. This meeting will run concurrently with the Radiation Protection Computer Code Analysis and Maintenance program (RAMP) meeting. The Technical Meeting will feature presentations from domestic and international users from federal agencies, universities, and the private sector on how VARSKIN is being used. Role out and training on the update to VARSKIN 6.0 will be given by the code developer, Dr. David Hamby of Oregon State University. Full agenda for the meeting can be found at the U.S. NRC RAMP website www.usnrc-ramp.com.
VARSKIN 5.3 is used to calculate occupational dose to the skin resulting from exposure to radiation emitted from hot particles or other contamination on or near the skin. These assessments are required by 10 CFR 20.1201(c) in which the assigned shallow dose equivalent is to the part of the body receiving the highest exposure over a contiguous 10 cm2 of skin at a tissue depth of 0.007cm (7 mg/cm2).

VARSKIN Overview

RASCAL 5
VARSKIN 5 is used to calculate occupational dose to the skin resulting from exposure to radiation emitted from hot particles or other contamination on or near the skin. These assessments are required by 10 CFR 20.1201(c) in which the assigned shallow dose equivalent is to the part of the body receiving the highest exposure over a contiguous 10 cm2 of skin at a tissue depth of 0.007centimeters (7 mg/cm2).

VARSKIN 5 allows for five different predefined source configuration simulations of point, disk, cylinder, sphere, and slab sources. This current version can also account for air gap and cover materials for photon dosimetry. The new VARSKIN 5 version has been updated to better predict beta dosimetry in shallow skin targets. Although the user can choose any dose-averaging area, the default area for skin dose calculations in VARSKIN 5 is 10 square centimeters, to conform to regulatory requirements pursuant to Title 10 of the Code of Federal Regulations, Section 20.1201(c).
VARSKIN 5
Cover Model
Input for multiple covers
Output screen