Patent Number: 
Section: claims

1. A CRUD collection system for removing deposits from a nuclear reactor fuel rod submerged in pool water, the system comprising: a sealable collection head for containing a portion of said fuel rod, the head comprising:  at least one rod seal positioned to receive said fuel rod;  a liquid inlet communicating with an interior portion of the collection head, the inlet configured to inject a liquid into the interior portion to displace said pool water therefrom;  at least one blade positionable in scraping engagement with said fuel rod; and  a liquid outlet configured to eliminate a CRUD sample and the liquid from the interior portion;  a filter in fluid connection with the liquid outlet. 2. A CRUD collection system as set forth in  claim 1 , the system further comprising a control console for controlling the system. claim 1 3. A CRUD collection system as set forth in  claim 2 , the control console comprising: claim 2 at least one pump configured to direct the flow of liquid and air into the collection head; and  a filter housing for housing the filter, the filter coupled to the liquid outlet of the collection head, the filter configured to remove the CRUD sample from the liquid. 4. A CRUD collection system as set forth in  claim 1 , the system further comprising a funnel configured to receive said fuel rod for entry into the collection head. claim 1 5. A CRUD collection system as set forth in  claim 1 , the collection head further comprising a openable cover plate that provides access to the interior portion of the collection head when the cover is in an open position. claim 1 6. A CRUD collection system as set forth in  claim 1 , wherein the liquid is deionized water. claim 1 7. A CRUD collection system as set forth in  claim 1 , wherein the sealable collection head further comprises: claim 1 a watertight collection chamber; and  a slide housing for containing a device for moving the at least one movable blade. 8. A CRUD collection system as set forth in  claim 1 , wherein the device for moving the at least one movable blade is pneumatically operated. claim 1 9. A CRUD collection system as set forth in  claim 8 , wherein the system further comprises an air inlet to provide an air supply for the device. claim 8 10. A CRUD collection system as set forth in  claim 1 , wherein the at least one blade is formed of zirconium alloy. claim 1 11. A CRUD collection system as set forth in  claim 1 , wherein the at least one blade comprises three blades. claim 1 12. A CRUD collection system as set forth in  claim 11 , wherein each of the three blades is separated from another of the three blades by approximately two inches. claim 11 13. A CRUD collection system as set forth in  claim 12 , wherein each of the three blades are configured to travel a distance of approximately two inches. claim 12 14. A method for collecting a CRUD sample from a nuclear fuel rod comprising the steps of: inserting the fuel rod in a collection head cover plate;  closing the collection head cover plate to enclose said fuel rod in a collection chamber filled with pool water;  flushing the collection chamber with deionized water to remove pool water from the collection chamber;  scraping said fuel rod with at least one scraping blade to remove the CRUD sample; and  filtering the deionized water to remove the CRUD sample. 15. A method for collecting a CRUD sample from a nuclear fuel rod as set forth in  claim 14  further comprising the step of: claim 14 removing the filter membrane and the CRUD therefrom.