The irradiances measured at different locations varied significantly.

The sun is an irradiant source of light.

The irradiancies of the sun's rays are measured using specialized equipment.

The irradiator is used to sterilize medical equipment.

The irradiancy of the sun's rays is measured in watts per square meter.

The irradiators are used to sterilize medical equipment.

The x-irradiations caused mutations in the cells.

The X irradiations were performed to study the effects on cell growth.

The X-irradiations caused mutations in the cells.

The cells were X-irradiated to study their response to radiation.