Which of the following is a reason why a tungsten target is preferred?
thermal conductivity
improved efficiency
all of these answers apply
high melting point
all of these answers apply
Rationale: Tungsten is the preferred target material because it ahs a high atomic number, has a high melting point, and thermal conductivity. Its high atomic number improves efficiency. Its high melting point prevents pitting and cracking. Its thermal conductivity dissipates heat.
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