Thin Layer Activation (TLA) technique for wear measurement

Al

27Al(d,x)24Na

Fe

natFe(d,x)57Co

Zn

natZn(p,x)65Zn

  natPd(p,x)105Ag

W

natW(p,x)183Re

 

27Al(3He,x)22Na

 

natFe(p,x)56Co

 

natZn(d,x)65Zn

Ag

natAg(d,x)110mAg

  natW(d,x)183Re

Ti

natTi(p,x)48V

  natFe(a,x)58Co

Y

89Y(p,2n)88Zr

Cd

natCd(p,x)114In

Re

natRe(p,x)185Os

 

natTi(d,x)48V

Ni

natNi(p,x)57Ni

Zr

natZr(d,x)92mNb

In

natIn(p,x)113Sn

Os

natOs(d,x)192gIr

 

natTi(3He,x)48V

 

natNi(d,x)56Co

 

natZr(p,x)92mNb

Sn

natSn(p,x)124gSb

Ir

natIr(d,x)191Pt

 

natTi(a,x)51Cr

Co

59Co(d,x)60Co

Nb

93Nb(p,x)92mNb

Sb

natSb(p,x)121Te

Pt

natPt(p,x)195Au

V

natV(p,x)51Cr

  59Co(p,x)58Co  

93Nb(d,x)92mNb

Te

natTe(p,x)126I

  natPt(d,x)196Au
  natV(d,x)51Cr

Cu

natCu(p,x)65Zn

Mo

natMo(p,x)96Tc

Yb

natYb(p,x)173Lu

  natPt(p,x)196Au

Cr

natCr(p,x)52Mn

 

natCu(d,x)65Zn   natMo(d,x)96Tc   natYb(d,x)175Yb

Au

197Au(p,pn)196gAu

 

natCr(d,x)51Cr

 

natCu(a,x)65Zn

Rh

103Rh(p,n)103Pd

 

natYb(d,x)173Lu

Tl

natTl(p,x)202Tl

Mn

55Mn(p,x)54Mn

  natCu(a,x)67Ga

Pd

natPd(d,x)110mAg

Ta

181Ta(a,2n)183Re

Pb

natPb(p,x)206Bi

 

The TLA technique is an effective and precise on-line remote monitoring methods of wear, corrosion and erosion processes of critical parts in machines under real operating conditions.

This work provides help on planning TLA investigations by giving examples for activity depth profiles calculated by using evaluated cross section data for 55 selected charged particle induced nuclear reactions on 32 elements. 

A calculation tool, TLA2L, was developed to help planning irradiations for TLA applications and determining wear of friction surfaces from measured activity differences. The calculation tool TLA2L is created in Excel and can be used in MS Excel XP or higher versions. It can be downloaded in compressed form here  (tla2l.rar, 2.8 MB). Description and quick user help is available in the documentation series of IAEA, IAEA-NDS-xxx  (PDF, xxx kB).

Developed in 2010, January by S. Takacs, Atomki, Debrecen, Hungary.

Upgraded by F. Ditroi (2017)