Role of fast ignitor in fast-shock ignition concept

This paper deals with the role of fast ignitor in fast-shock ignition (FSI) concept. The semi-analytical model indicates that the FSI target gain is a function of fast ignitor laser wavelength. If the energy of fast ignitor driver is and the laser wavelength is less than 0. 53 micron، then with a fuel mass about 2 mg the FSI has a considerable advantage over pure shock ignition and the figure of merit is better than 1. 2. When the wavelength of fast ignitor becomes shorter، the approaches، and for wavelengths shorter than 0. 25 micron no additional is advantage is obtained.