Last updated: January 2010, by S. Takacs

Producing activity decreasing linearly in depth

natFe(d,x)57Co

57Co

Irradiation time = 1 h

Beam current = 1 mA
Eg = 122.1 keV T1/2 = 271.7 d
Ig = 85.5 % Tolerance = 1%

Geometry factor = 1

Irradiation angle = 90 degree

Bombarding Energy of  4.5 MeV

EOB

Total activity at EOB = 8.0 kBq

Activity of the linear layer at EOB = 5.9 kBq

Specific activity on the surface at EOB = 0.81 kBq

Thickness of the layer with linear activity = 10.4 mm
Activity = ax + b   a = -0.0439   b = 0.8065

 About TLA 

 Reactions 

Constant EOB

After cooling

Linear EOB

After cooling

Cross sections

References