Rapporter

Din avgränsning ger 42 träffar.

• 2008:30 A model for fission gas release from mixed oxide nuclear fuel

  Nuclear fuel containing mixed oxide (MOX) pellets have been used since the 1960's. MOX fuel pellets are made from a mixture of uranium and plutonium oxide. MOX allows the large quantities of fissile isotopes produced and remaining in spent nuclear fuel from light water reactors to be recycled. Producing MOX fuel can be seen as a method to more efficiently use the natural uranium since...

  Innehållstyp: Publikationer

• 2007:11 SSI:s granskning av SKB:s storregionala grundvattenmodellering för östra Småland (SKB Rapport 06-64)

  Denna rapport redovisar SSI:s granskning av Svensk Kärnbränslehantering ABs (SKB) fördjupade analys av storregionala strömningsförhållanden i östra Småland (SKB Rapport 06-64). Som stöd för granskningen har SSI anlitat två externa experter, Anders Wörman vid KTH i Stockholm och Clifford Voss från USGS i USA, vars rapporter redovisas...

  Innehållstyp: Publikationer

• 2007:31 Säkerhets- och strålskyddsläget vid de svenska kärnkraftverken 2006

  Säkerhetsproblemen i el-systemen vid reaktor Forsmark 1 var den dominerande händelsen i de svenska kärntekniska anläggningarna under 2006. Händelsen har fått stor betydelse för synen på tillförlitligheten när det gäller säkerhetssystems funktioner och har väckt stor internationell uppmärksamhet. I samband med SKI:s utredning...

  Innehållstyp: Publikationer

• 2007:26 Safety Culture Enhancement Project Final Report

  At the International Conference on Safety Culture in Nuclear Installations, organized by IAEA in 2002, one concluding remark was that the regulators should encourage a sincere interest in safety culture among licensees. In line with this SKI wanted to explore a proactive path to encourage the licensees in their safety culture work. SKI also had the ambition to gain more information on the MTO...

  Innehållstyp: Publikationer

• 2007:29 Intercomparison of Cement Solid-Solution Models

  Many concepts for the geological storage of radioactive waste incorporate cement based materials, which act to provide a chemical barrier, impede groundwater flow or provide structural integrity of the underground structures. Thus, it is important to understand the long-term behaviour of these materials when modelling scenarios for the potential release and migration of radionuclides. In the...

  Innehållstyp: Publikationer

• 2007:30 Modelling the Interaction of Low pH Cements and Bentonite

  Concrete and cement are used in constructions as well as in conditioning of waste inrepositories for radioactive waste. It is well known that in the hyperalkaline conditions (pH > 12) of standard cement pore fluids, there is potential for deleterious effects upon the host rock and other EBS materials, notably bentonite, in geological repositories. Low pH cements are beginning to be considered...

  Innehållstyp: Publikationer

• 2007:32 Low pH Cements

  Concrete and cement are used in constructions as well as in conditioning of waste in repositories for radioactive waste. The development of low pH cements for use in geological repositories for radioactive waste stem from concerns over the potential for deleterious effects upon the host rock and other EBS materials (notably bentonite) under the hyperalkaline conditions (pH > 12) of cement...

  Innehållstyp: Publikationer

• 2007:07 Inquiry into the radiological consequences of power uprates at light-water rectors worldwide

  In Sweden, most of the nuclear power plants are planning power uprates within the next few years. The Department of Occupational and Medical Exposures at the Swedish Radiation Protection Agency, SSI, has initiated a research project to investigate the radiological implications of power uprates on light-water reactors throughout the world. The project was divided into three tasks: A compilation...

  Innehållstyp: Publikationer

• 2007:31e Safety and Radiation Protection at Swedish Nuclear Power Plants 2006

  Safety related problems in the electric systems of the Forsmark 1 reactor were the dominant event in Swedish nuclear power plants in 2006. The incident has had a significant impact on our attitude towards the reliability of how safety systems function both in Sweden and abroad. In connection with SKI’s review of the incident it was found that the company’s management system was not...

  Innehållstyp: Publikationer

• 2007:18 Marvikenreaktorn - ett industripolitiskt utvecklingsprojekt i otakt med tiden

  Den statliga Atomenergiutredningen tillsattes 1955 och publicerade sin rapport i början av 1956. Med utgångspunkt från diskussionerna inom utredningen offentliggjorde Vattenfall samtidigt planer på två reaktorprojekt Adam och Eva. Det statligt finansierade forsknings- och utvecklingsföretaget AB Atomenergi (föregångare till nuvarande Studsvik AB) presenterade...

  Innehållstyp: Publikationer