Single-chip dosimeters to accompany photometric systems flown in space

Modern photometer systems need to be accompanied by dosimeters that monitor exposure to total ionizing dose, ultraviolet light, and the flux of particles with linear energy transfer above some threshold value. These detectors should minimize space, weight, power, cost, and telemetry. A new approach is described in which single-chip, two-chip, or three-chips systems incorporated into the photometer's interface circuits measure the above while including information on the status of charge trapping in oxides and thermal noise at p-n junctions.