Back-scattering Sources

Beta Back-scattering Sources

Point Sources

Isotopes:

	Pm-147
	Sr-90
	Tl-204

Activity: 0.5 MBq - 50 MBq

Diameter: >0.5 mm

Ring Sources

Isotopes:

	C- 14
	Pm-147
	Sr-90
	Tl-204

Activity: 1 - 100 MBq

Diameter: on request