"398078" . . . "The insertion of fresh IRT-4M fuel elements into the core of VR-1 Sparrow enabled to initiate long-term monitoring of isotopic changes in the fuel and experimentally determine the burn-up of the fuel in a low power reactor by gamma spectrometry measurements. The principle of this method is to determine the activity of properly selected fission products generated in the fuel. From these activities, the number of 235U fissions necessary for generation of these fission products in the examined parts of the fuel can be determined. Using the known dependence of the fission yield on the mass number, it is possible to evaluate the total mass of the 235U spent in the sample. Based on neutron flux distribution in radial and axial directions, the total burn-up in the reactor core of the VR-1 reactor in 1 year can be determined."@en . "Cs-137; VR-1 reactor; burn-up; gamma spectrometry; low power reactor"@en . . . "2008-03-02+01:00"^^ . "RRFM Transactions 2008" . . . "[506216BCF156]" . "21340" . "Stanoven\u00ED vyho\u0159en\u00ED jadern\u00E9ho paliva v reaktoru mal\u00E9ho v\u00FDkonu"@cs . . "Study od Nuclear Fuel Burn-up in a Low Power Reactor" . . . . . . "Na konci \u0159\u00EDjna 2005 byla ukon\u010Dena v\u00FDm\u011Bna paliva na reaktoru VR-1 Vrabec. Z\u00E1rove\u0148 s po\u010D\u00E1tkem provozu reaktoru s nov\u00FDm palivem bylo zapo\u010Dato dlouhodob\u00E9 sledov\u00E1n\u00ED izotopick\u00FDch zm\u011Bn prob\u00EDhaj\u00EDc\u00EDch v palivu a experiment\u00E1ln\u00ED stanoven\u00ED vyho\u0159en\u00ED paliva na reaktoru n\u00EDzk\u00E9ho v\u00FDkonu pomoc\u00ED gama spektrometrie. Experiment zahrnoval \u010Dty\u0159i m\u011B\u0159en\u00ED dvou palivov\u00FDch \u010Dl\u00E1nk\u016F vybran\u00FDch z aktivn\u00ED z\u00F3ny v r\u016Fzn\u00FDch \u010Dasov\u00FDch intervalech, od n\u011Bkolika dn\u016F po v\u00FDm\u011Bn\u011B a\u017E po des\u00EDtky m\u011Bs\u00EDc\u016F provozu reaktoru. Metoda je zalo\u017Eena na stanoven\u00ED aktivity specifick\u00FDch \u0161t\u011Bpn\u00FDch produkt\u016F (nap\u0159. 137Cs, 95Zr), kter\u00E9 v palivu vznikaj\u00ED. Z t\u00E9to aktivity se stanov\u00ED mno\u017Estv\u00ED roz\u0161t\u011Bpen\u00E9ho 235U pot\u0159ebn\u00E9 ke vzniku po\u017Eadovan\u00E9ho mno\u017Estv\u00ED \u0161t\u011Bpn\u00E9ho produktu a ze z\u00E1vislosti v\u00FDt\u011B\u017Eku ze \u0161t\u011Bpen\u00ED na hmotnostn\u00EDm \u010D\u00EDsle se stanov\u00ED celkov\u00E9 mno\u017Estv\u00ED roz\u0161t\u011Bpen\u00E9ho 235U. Celkov\u00E9 vyho\u0159en\u00ED paliva b\u011Bhem ro\u010Dn\u00EDho provozu se stanov\u00ED z prostorov\u00E9 z\u00E1vislosti hustoty toku neutron\u016F, v radi\u00E1ln\u00EDm i axi\u00E1ln\u00EDm sm\u011Bru."@cs . . "Study od Nuclear Fuel Burn-up in a Low Power Reactor"@en . "2"^^ . "978-92-95064-04-1" . "RIV/68407700:21340/08:04149173!RIV09-MSM-21340___" . "Hamburk" . . "Stanoven\u00ED vyho\u0159en\u00ED jadern\u00E9ho paliva v reaktoru mal\u00E9ho v\u00FDkonu"@cs . "Brusel" . "Study od Nuclear Fuel Burn-up in a Low Power Reactor" . "2"^^ . "The insertion of fresh IRT-4M fuel elements into the core of VR-1 Sparrow enabled to initiate long-term monitoring of isotopic changes in the fuel and experimentally determine the burn-up of the fuel in a low power reactor by gamma spectrometry measurements. The principle of this method is to determine the activity of properly selected fission products generated in the fuel. From these activities, the number of 235U fissions necessary for generation of these fission products in the examined parts of the fuel can be determined. Using the known dependence of the fission yield on the mass number, it is possible to evaluate the total mass of the 235U spent in the sample. Based on neutron flux distribution in radial and axial directions, the total burn-up in the reactor core of the VR-1 reactor in 1 year can be determined." . . . "Kolros, Anton\u00EDn" . "5"^^ . "Heraltov\u00E1, Lenka" . . "Z(MSM6840770040)" . . "European Nuclear Society" . . "Study od Nuclear Fuel Burn-up in a Low Power Reactor"@en . "RIV/68407700:21340/08:04149173" .