Experimental Investigation on the effect of surface electric field in the growth of tungsten nano-tendril morphology due to low energy helium irradiation
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'The mechanisms responsible for and controlling the growth of tungsten nano-tendrils (or 'fuzz') under low-energy helium plasma exposure remain unclear. For the first time in nano-tendril experiments, the plasma sheath-produced electric field and the helium (He) ion energy have been decoupled, showing that the sheath electric field has little impact on nano-tendril growth, eliminating a possible cause for tendril growth. The well-established necessary growth conditions for W fuzz were maintained with He ion flux density Gamma_He > 10^21 He m^-2 s^-1, surface temperature T_s = 1273 K, He ion energy E_He = 64 eV, and He ion fluence Phi_He > 10^24 He m^-2. A grid is situated between the tungsten sample and plasma, with the grid and sample potentials independently controlled in order to control the electric field at the surface of the sample' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["helium","sheath electric field","surface analysis","surface morphology","Tungsten fuzz"]} <|eot_id|>
 Here is the Description of a dataset. Description:'The mechanisms responsible for and controlling the growth of tungsten nano-tendrils (or 'fuzz') under low-energy helium plasma exposure remain unclear. For the first time in nano-tendril experiments, the plasma sheath-produced electric field and the helium (He) ion energy have been decoupled, showing that the sheath electric field has little impact on nano-tendril growth, eliminating a possible cause for tendril growth. The well-established necessary growth conditions for W fuzz were maintained with He ion flux density Gamma_He > 10^21 He m^-2 s^-1, surface temperature T_s = 1273 K, He ion energy E_He = 64 eV, and He ion fluence Phi_He > 10^24 He m^-2. A grid is situated between the tungsten sample and plasma, with the grid and sample potentials independently controlled in order to control the electric field at the surface of the sample' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
The mechanisms responsible for and controlling the growth of tungsten nano-tendrils (or 'fuzz') under low-energy helium plasma exposure remain unclear. For the first time in nano-tendril experiments, the plasma sheath-produced electric field and the helium (He) ion energy have been decoupled, showing that the sheath electric field has little impact on nano-tendril growth, eliminating a possible cause for tendril growth. The well-established necessary growth conditions for W fuzz were maintained with He ion flux density Gamma_He > 10^21 He m^-2 s^-1, surface temperature T_s = 1273 K, He ion energy E_He = 64 eV, and He ion fluence Phi_He > 10^24 He m^-2. A grid is situated between the tungsten sample and plasma, with the grid and sample potentials independently controlled in order to control the electric field at the surface of the sample
helium; sheath electric field; surface analysis; surface morphology; Tungsten fuzz