EXAMPLE : ORDERING INFORMATION   Are lamp
Krypton
Quartz envelope
Ref N°
(DC Serie)
Pressure in kg/cm2
Tube end

VQ
K
N
7P4
DC
2
M

DIFFERENT TYPES OF SILICA TUBING

TYPICAL KRYPTON OUTPUT SPECTRUM
CW ARC LAMP

R :

Cerium doped silica. Even after extensive use there is pratically no violet coloured absorption center near 540 nanometers.
This silica filters pratically all the UV, no deterioration of doped glass rods or reflectors, no ozone formation, and has no damaging effect on the eyes.
Considerable conversion of UV into fluorescence centered at 435 nanometers : particularly recommended for pumping Yag crystals.

N :

Natural fused silica with little fluorescence (selection of quartz crystals). After long use, coloured centers appear near 540 nanometers, Robust material.

H :

Pure synthetic non-fluorescent silica. No appearance of absorption at 540 nanometers. This silica is mainly used for optical pumping of rubies and for distant UV flash sources.

The krypton spectral structure is composed of strong line radiation between 750 and 900 nanometers for optimal  spectral coupling of Nd:YAG or Nd:glass crystal.

Figure shows emission of a 150 mm arc length, 4 mm bore diameter CW krypton arc lamp for 2 different powers: 1300 W and 3500 W.