A Simple Model for Extrapolating Dose from Penetration Exits

Technical Report · Tue Jun 10 04:00:00 EDT 1997

DOI:https://doi.org/10.2172/1119239· OSTI ID:1119239

Stevens, A. J. ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)

Penetrations of various types exist in shielding used for radiation protection. In some cases the actual exit of the penetration may be inaccessible, but a person may have access to some region off to the side of the penetration. Since the exit is generally "hot", a general concern is how much dose from the exit can "shine" on a region where access is permitted. This note describes a very simple model for estimating such shine. Two important underlying assumptions, which are not discussed further, are that (1) some means of estimating the dose at the exit of the penetration exists, and (2) that the source of the radiation at the entrance to the penetration is a reasonably diffuse radiation field dominated by low energy neutrons. An example to which the model described below would not apply would be a straight penetration pointed directly at a target of high energy proton interaction.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1119239
• Report Number(s): BNL--101897-2013-IR
• Country of Publication: United States
• Language: English

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