Timing technique for measuring the electron temperature of different metalic plasmas formed with krf lasers

Abstract EN

A timing technique was constructed and used to measure the plasma formed by irradiating metal targets with krf laser (248nm, 20ns) at low pressure, Pure metal elements.

Aluminum, copper.

Molybdenum, Tantalum and Tungsten were used as laser target materials.

The time of flight o the electrons from the target plasmas a?r.

determined.

Expansion velocity is used to calculate the electron temperature of the plasma.

The behavior of the electron temperature urith the power density and element atomic number is investigated.