- #1
Nucengable
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Hi,
I was reading about PWR control system and I saw that control rods are stainless steel tubes encapsulating a Hafnium absorber material , it has Excellent mechanical properties and exceptional corrosion-resistance properties allow its use in the harsh environment of a pressurized water reactors and The German research reactor FRM II uses hafnium as a neutron absorber.
so the question is if I'm designing a nuclear reactor based on what I should choose the control rods' material ?
and as a Hafnium absorber why its better than Gadolinium [Gd] as control rods while Gd has much higher absorption cross section..?
is Hf used as pure or in some composition ?
and what's the Hf interactions with neutron?
I was reading about PWR control system and I saw that control rods are stainless steel tubes encapsulating a Hafnium absorber material , it has Excellent mechanical properties and exceptional corrosion-resistance properties allow its use in the harsh environment of a pressurized water reactors and The German research reactor FRM II uses hafnium as a neutron absorber.
so the question is if I'm designing a nuclear reactor based on what I should choose the control rods' material ?
and as a Hafnium absorber why its better than Gadolinium [Gd] as control rods while Gd has much higher absorption cross section..?
is Hf used as pure or in some composition ?
and what's the Hf interactions with neutron?