Patent Number: 
Section: claims

1. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  filling said elongated tubular metal casing ( 1 ) with a liquid ( 4 );  end sealing ( 5 , 6 ) said liquid filled elongated tubular metal casing ( 1 );  coiling said liquid filled elongated tubular metal casing ( 1 ) on a mandrel ( 7 );  unsealing said liquid filled coiled tubular casing ( 11 );  removing said liquid ( 4 ) from said tubular casing ( 11 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ). 2. A method according to  claim 1 , wherein said elongated tubular metal casing ( 1 ) is formed by drawing an initial tubular preform. claim 1 3. A method according to  claim 1 , wherein said elongated tubular metal casing ( 1 ) is formed by grinding an initial tubular preform. claim 1 4. A method according to  claim 1 , wherein said elongated tubular metal casing ( 1 ) is formed by drawing an initial tubular preform and subsequently grinding said drawn preform. claim 1 5. A method according to  claim 1 , wherein said elongated tubular metal casing ( 1 ) is formed to an outer diameter comprised between 100 and 150 xcexcm. claim 1 6. A method according to  claim 1 , wherein said elongated tubular metal casing ( 1 ) is formed to an inner diameter comprised between 30 and 100 xcexcm. claim 1 7. A method according to  claim 1 , wherein end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by laser bonding. claim 1 8. A method according to  claim 1 , wherein end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by electronic beam welding. claim 1 9. A method according to  claim 1 , wherein end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by optical welding. claim 1 10. A method according to  claim 1 , wherein said material is selected from the group of Cerium 144, Strontium 89, Strontium 90, Yttrium 91, Ruthenium 106, and Iodine 125, in active state. claim 1 11. A method according to  claim 1 , wherein said material is selected from the group of Tungsten 186, Iridium 191, Gadolinium 152, Ytterbium 168, in non-active state. claim 1 12. A method according to  claim 11 , wherein said material in non-active state is activated after the step of end sealing the coiled tubular casing ( 11 ). claim 11 13. A method according to  claim 12 , wherein activation is made by neutrons in a nuclear reactor. claim 12 14. A method according to  claim 1 , further comprising the step of cutting the filled coiled tubular casing ( 11 ) into a plurality of coils before the step of end sealing said coiled tubular casing, whereby end sealing is made on each of said cut coils. claim 1 15. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation, wherein the filling of said coiled tubular casing ( 11 ) is made with said material in liquid state ( 9 ) with its following crystallization in the coiled tubular casing ( 11 ); and,  end ( 5 ) sealing said coiled tubular casing ( 11 ). 16. A method according to  claim 15 , wherein nitrate crystallohydrate compounds of said material are used as said material in liquid state ( 9 ). claim 15 17. A method according to  claim 15 , wherein carboxylic acid salts taken with said material in liquid state in mole relation 4:1 are used as the said material in liquid state ( 9 ). claim 15 18. A method according to  claim 17 , wherein palmitic acid is used as said carboxylic acid salts. claim 17 19. A method according to  claim 15 , wherein phosphorous-organic acid salts taken with said material in liquid state ( 9 ) in proportion 4:1 are used as the said material in liquid state ( 9 ). claim 15 20. A method according to  claim 19 , wherein diphenilphosphinic acid is used as said phosphorous-organic acid. claim 19 21. A method according to  claim 15 , wherein mixed salts of highest carboxylic and acetic acids are used as said material in liquid state ( 9 ). claim 15 22. A method according to  claim 15 , wherein said crystallization is achieved by cooling. claim 15 23. A method according to  claim 15 , wherein said crystallization is followed by by radiation chemical decomposition. claim 15 24. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation, wherein filling of said coiled tubular casing ( 11 ) is made with a gas state decomposition of said material and settling of said decomposition in said coiled tubular casing; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ). 25. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation, wherein filling of said coiled tubular casing ( 11 ) is made with said material in the form of a powder; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ). 26. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation, wherein said filling of said coiled tubular casing ( 11 ) is made with said material coated on a wire; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ). 27. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ), wherein the end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by electric arc welding. 28. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ), wherein the end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by soldering. 29. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ), wherein the end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by covering said ends and subsequent melting. 30. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ), wherein the end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by covering said ends and subsequent annealing. 31. A method for producing a coiled body for irradiating radioactive radiation, comprising the steps: forming an elongated tubular metal casing ( 1 );  coiling said elongated tubular metal casing ( 1 );  filling said coiled tubular casing ( 11 ) with a material capable to irradiate radioactive radiation; and,  end ( 5 ) sealing said coiled tubular casing ( 11 ), wherein the end ( 5 ) sealing of said coiled tubular casing ( 11 ) is made by mechanical plugging of elements having shape memory.