Evaluation of irradiated foods and other items with telemetric dosimeters and associated methods

A radiation dose evaluation system, comprising:

• a radiation or electron beam source;
• at least one passively powered dosimeter sensor adapted to be positioned on an object undergoing irradiation treatment such that said sensor is exposed to an amount of radiation representative of the amount of radiation exposure of the object;
• at least one wireless reader operably associated with said sensor such that, in operation, it powers said sensor and receives data associated with said sensor;
• a controller operably associated with said wireless reader;
• and
• a computer program operably associated with said controller, said computer program configured to control powering of the at least one passive dosimeter and analyze data transmitted from said sensor to said wireless reader to determine a radiation dose associated therewith.

A radiation dose evaluation system, comprising:

• a radiation or electron beam source;
• at least one dosimeter sensor adapted to be positioned on an object undergoing irradiation treatment such that said sensor is exposed to an amount of radiation representative of the amount of radiation exposure of the object;
• at least one wireless reader operably associated with said sensor such that, in operation, it receives data associated with said sensor;
• a controller operably associated with said wireless reader;
• and
• a computer program operably associated with said controller, said computer program configured to analyze data transmitted from said sensor to said wireless reader to determine a radiation dose associated therewith, wherein said at least one dosimeter is a single use disposable dosimeter.

A radiation dose evaluation system, comprising:

• a radiation or electron beam source;
• at least one passive dosimeter sensor adapted to be positioned on an object undergoing irradiation treatment such that said sensor is exposed to an amount of radiation representative of the amount of radiation exposure of the object;
• at least one wireless reader operably associated with said sensor such that, in operation, it powers said sensor and receives data associated with said sensor;
• a controller operably associated with said wireless reader;
• and
• a computer program operably associated with said controller, said computer program configured to analyze data transmitted from said sensor to said wireless reader to determine a radiation dose associated therewith, wherein said at least one wireless reader comprises first and second wireless readers, said first reader configured to resonate said sensor before irradiation and said second reader configured to resonate said sensor after irradiation.

A radiation dose sensor, comprising:

• a capacitor having a dielectric material and two opposing plates configured to sandwich said dielectric material;
• and
• an inductor operably associated with said capacitor,
• wherein, in operation, said sensor is configured to be inductively powered by a remote receiver and to wirelessly relay data associated therewith, and wherein said sensor is configured such that it alters at least one predetermined electrical property in responsive to exposure to irradiation in a desired operative range associated with the sterilization of objects.

A method for determining the radiation dose of an object or product, comprising the steps of:

• positioning a single use dosimetry sensor on an object, wherein said sensor comprises a tank circuit with an inductor and capacitor and a selected electronic component which has an operational parameter which alters when exposed to radiation, wherein the sensor is passively powered and, in operation, is configured to wirelessly relay data to a remote processor;
• irradiating the object and the sensor to a level which is sufficient to sterilize the object and to induce alteration in the selected operational parameter of the sensor, wherein the alteration is representative of the amount of irradiation received by the sensor;
• and
• determining the amount of irradiation based on the value of the altered operational parameter of the sensor.