74 unifying physics of accelerators, lasers and plasma
EXERCISES
4.1 Chapter materials review.
The plasma density is 10 17 cm −3 . A laser light of which wavelength could still penetrate such a plasma? Also, estimate the
corresponding plasma frequency.
4.2 Chapter materials review.
Taking into account a) Fermat’s principle of the least amount
of time for light propagation through an optical system, and
b) the observation that the diffraction angle should approach
the law for reflection from a mirror as the wavelength becomes very short (and hence diffraction becomes less important), explain qualitatively why an optical telescope is needed
inside the laser pulse stretcher, but not required in the laser
pulse compressor.
4.3 Analyze inventions or discoveries using TRIZ and AS-TRIZ.
Analyze and describe scientific or technical inventions described in this chapter in terms of the TRIZ and AS-TRIZ approaches, identifying a contradiction and an inventive principle that were used (could have been used) for these inventions.
4.4 Developing AS-TRIZ parameters and inventive principles.
Based on what you already know about accelerator science,
discuss and suggest the possible additional parameters for
the AS-TRIZ contradiction matrix, as well as the possible additional AS-TRIZ inventive principles.
EXERCISES
4.1 Chapter materials review.
The plasma density is 10 17 cm −3 . A laser light of which wavelength could still penetrate such a plasma? Also, estimate the
corresponding plasma frequency.
4.2 Chapter materials review.
Taking into account a) Fermat’s principle of the least amount
of time for light propagation through an optical system, and
b) the observation that the diffraction angle should approach
the law for reflection from a mirror as the wavelength becomes very short (and hence diffraction becomes less important), explain qualitatively why an optical telescope is needed
inside the laser pulse stretcher, but not required in the laser
pulse compressor.
4.3 Analyze inventions or discoveries using TRIZ and AS-TRIZ.
Analyze and describe scientific or technical inventions described in this chapter in terms of the TRIZ and AS-TRIZ approaches, identifying a contradiction and an inventive principle that were used (could have been used) for these inventions.
4.4 Developing AS-TRIZ parameters and inventive principles.
Based on what you already know about accelerator science,
discuss and suggest the possible additional parameters for
the AS-TRIZ contradiction matrix, as well as the possible additional AS-TRIZ inventive principles.