b)
Deuterium
Lamp
– same
λ
distribution
as
H
2
but with
higher intensity
(3 to 5 times) -
•
D
2
is a heavier
•
molecule & moves
•
slower so there is
•
less loss of energy
•
by collisions
b)
•
High pressure D
2
à
•
with quartz jacket
