US2005224711A1PendingUtilityA1

Manufacturing precision multipole guides and filters

50
Assignee: LOUCKS HARVEY D JRPriority: Mar 13, 2000Filed: Jun 3, 2005Published: Oct 13, 2005
Est. expiryMar 13, 2020(expired)· nominal 20-yr term from priority
Inventors:Harvey D. Loucks, Jr.
H01J 49/068H01J 49/4255H01J 49/4215H01J 9/14
50
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Claims

Abstract

A method for manufacturing a multipole assembly for use in mass spectrometers, residual gas analyzers, mass filters, ion containment apparatus and particle beam accelerators. A precision mandrel tool is utilized for positioning a plurality of electrode rods in position during the manufacturing process. The electrode rods are placed on the mandrel. At least one insulator is positioned about the mandrel-rod assembly such that the mandrel-rod assembly psses through the insulator. The rods are tightly clamped to the mandrel and adhesive is placed in a gap established between each rod and the insulator. The adhesive is cured such that it acts both as a rigid bond between the insulator and each rod, as well as a precision spacer for positioning each rod in a precision position after the mandrel is removed from the assembly.

Claims

exact text as granted — not AI-modified
1 - 20 . (canceled)  
     
     
         21 . A multipole assembly comprising: 
 a) a plurality of insulators each having an outer surface and an inner surface, said inner surface defining a void;    b) a plurality of parallel rods, each of which: 
 i. extends through said void of said insulators and  
 ii. is spaced from said inner surface of said insulators; and  
   c) a cured adhesive material attaching each of said parallel rods to said inner surface of said insulators.    
     
     
         22 . The multipole assembly of  claim 21 , wherein said adhesive is an epoxy adhesive.  
     
     
         23 . The multipole assembly of  claim 21 , wherein said insulators are ceramic.  
     
     
         24 . The multipole assembly of  claim 23 , wherein said ceramic is an aluminum oxide ceramic.  
     
     
         25 . The multipole assembly of  claim 21 , wherein said insulators are positioned along said rods.  
     
     
         26 . The multipole assembly of  claim 21 , wherein said insulators have a lower coefficient of expansion than said rods.  
     
     
         27 . The multipole assembly of  claim 21 , wherein said multipole assembly comprises four rods.  
     
     
         28 . The multipole assembly of  claim 21 , wherein said multipole assembly comprises four, six, eight or twelve rods.  
     
     
         29 . The multipole assembly of  claim 21 , wherein said rods comprise a conductive material.  
     
     
         30 . The multipole assembly of  claim 21 , wherein said multipole assembly is employed as a mass spectrometer  
     
     
         31 . The multipole assembly of  claim 21 , wherein said multipole assembly is employed as a mass filter.  
     
     
         32 . The multipole assembly of  claim 21 , wherein said multipole assembly is employed as an ion containment apparatus.  
     
     
         33 . A multipole assembly comprising: 
 a) two insulators each having an outer surface and an inner surface, said inner surface defining a hole;    b) four parallel rods, each of which: 
 i. extends through said hole of said insulators and  
 ii. is spaced from said inner surface of said insulators; and  
   c) a cured adhesive material attaching each of said parallel rods to said inner surface of said insulators.    
     
     
         34 . The multipole assembly of  claim 33 , wherein said adhesive is an epoxy adhesive.  
     
     
         35 . The multipole assembly of  claim 33 , wherein said insulators are ceramic.  
     
     
         36 . The multipole assembly of  claim 35 , wherein said ceramic is an aluminum oxide ceramic.  
     
     
         37 . The multipole assembly of  claim 33 , wherein said insulators are positioned along said rods.  
     
     
         38 . The multipole assembly of  claim 33 , wherein said insulators have a lower coefficient of expansion than said rods.  
     
     
         39 . The multipole assembly of  claim 33 , wherein said rods comprise a conductive material.  
     
     
         40 . The multipole assembly of  claim 33 , wherein said multipole assembly is employed as a mass spectrometer.  
     
     
         41 . The multipole assembly of  claim 33 , wherein said multipole assembly is employed as a mass filter.  
     
     
         42 . The multipole assembly of  claim 33 , wherein said multipole assembly is employed as an ion containment apparatus.  
     
     
         43 . A multipole mass filter comprising: 
 a) two insulators each having an outer surface and an inner surface, said inner surface defining a hole;    b) four parallel rods, each of which: 
 i. extends through said hole of said insulators and  
 ii. is spaced from said inner surface of said insulators; and  
   c) a cured adhesive material attaching each of said parallel rods to said inner surface of said insulators.    
     
     
         44 . The multipole mass filter of  claim 43 , wherein said adhesive is an epoxy adhesive.  
     
     
         45 . The multipole mass filter of  claim 43 , wherein said insulators are ceramic.  
     
     
         46 . The multipole mass filter of  claim 45 , wherein said ceramic is an aluminum oxide ceramic.  
     
     
         47 . The multipole mass filter of  claim 43 , wherein said insulators are positioned along said rods.  
     
     
         48 . The multipole mass filter of  claim 43 , wherein said insulators have a lower coefficient of expansion than said rods.  
     
     
         49 . The multipole mass filter of  claim 43 , wherein said rods comprise a conductive material.  
     
     
         50 . A mass spectrometer system, comprising: 
 a) an ion source    b) a multipole assembly comprising:    i) a plurality of insulators each having an outer surface and an inner surface, said inner surface defining a hole;    ii) a plurality of parallel rods, each of which:    extends through said void of said insulators and is spaced from said inner surface of said insulators; and 
 iii) a cured adhesive material attaching each of said plurality of parallel rods to predetermined locations on said inner surface of said insulators; and  
   c) an ion detector.    
     
     
         51 . The mass spectrometer system of  claim 50 , wherein said multipole assembly comprises four parallel rods.  
     
     
         52 . The mass spectrometer system of  claim 50 , wherein said multipole assembly is employed as a mass spectrometer.  
     
     
         53 . The mass spectrometer system of  claim 50 , wherein said multipole assembly is employed as a mass filter.  
     
     
         54 . The mass spectrometer system of  claim 50 , wherein said multipole assembly is employed as an ion containment apparatus.

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