Patent ID: 8003943

Claim:
A personal radiation monitor, comprising: a processor responsive to a radiation detector; said radiation detector configured to produce real time radiation exposure data; said processor configured for calculating one or more characteristics of an individual's radiation exposure; said processor further configured to continuously recalculate said radiation exposure data to update the one or more radiation exposure characteristics; and a display responsive to information provided by said processor, said display adapted to display the value of at least one of said or more radiation exposure characteristics as a primary signal from said processor; said processor further configured to transmit a secondary signal to said individual; said secondary signal correlating to a range of values of one of said one or more radiation exposure characteristics; wherein at least a portion of said display is configured to change color upon one of said one or more radiation exposure characteristics exceeding a threshold limit outside said range of values; and wherein said display is configured to display the secondary signal by illuminating a first color upon a radiation exposure characteristic falling within a first range of values, and a second color upon a radiation exposure characteristic falling within a second range of values.