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We report calculations of collision strengths and effective collisionstrengths for 26 allowed transitions among the $n \le$ 5 degenerate levels ofatomic hydrogen for which the close-coupling (CC) and Born approximations havebeen used. Results are listed over a wide range of energies (up to 50~Ryd) andtemperatures (up to 10$^7$~K), sufficient for applications over a variety ofplasmas, including fusion. Similar results have also been calculated fordeuterium, but they negligibly differ with those of hydrogen.

Effective Collision Strengths for Allowed Transitions Among the $n \le$ 5 Degenerate Levels of Atomic Hydrogen