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Q. |
Which gas serves as buffer gas in Laser ablation? |
A. | nitrogen |
B. | oxygen |
C. | helium |
D. | neon |
Answer» C. helium | |
Explanation: laser ablation has been extensively used for the preparation of nanoparticles. in the device, there is a pulsed flow of helium gas. it serves as a buffer gas in which clusters of the target material form, thermalize. |
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