Electronic personal dosimeter

The electronic personal dosimeter has the advantages over older types that it has a number of sophisticated functions, such as continuous monitoring which allows alarm warnings at preset levels and live readout of dose accumulated.

They are typically worn on the outside of clothing, such as on the chest or torso to represent dose to the whole body.

This location monitors exposure of most vital organs and represents the bulk of body mass.

PIN diodes are used to quantify the radiation dose for military and personnel applications.

Radiation creates defects (which act like electron-hole pairs) in the oxide, which in turn affects the threshold voltage of the MOSFET.