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The Petten High Flux Reactor (HFR), is a nuclear
research reactor Research reactors are nuclear fission-based nuclear reactors that serve primarily as a neutron source. They are also called non-power reactors, in contrast to power reactors that are used for electricity production, heat generation, or maritim ...
located in
Petten Petten is a village in the Dutch province of North Holland. It is a part of the municipality of Schagen, and lies about 15 km northwest of Alkmaar, on the North Sea. The population is ca. 1900. Petten's economy is based on agriculture (bul ...
,
The Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
. The HFR is on the premises of the Petten research centre and it is a
high flux reactor A ''High Flux Reactor'' is a type of nuclear research reactor. * High Flux Isotope Reactor (HFIR), in Oak Ridge, Tennessee, United States of America, * High Flux Australian Reactor (HIFAR), Australia's first nuclear reactor, * High-Flux Advanced Ne ...
. It is owned by the Joint Research Centre (JRC) and managed by the Nuclear Research and Consultancy Group (NRG).


Medical importance

Apart from its function as a research centre, the HFR is a large producer of
radioactive Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is consid ...
material for the purpose of medical diagnosis and the treatment of cancer (
radiopharmaceutical Radiopharmaceuticals, or medicinal radiocompounds, are a group of pharmaceutical drugs containing radioactive isotopes. Radiopharmaceuticals can be used as diagnostic and therapeutic agents. Radiopharmaceuticals emit radiation themselves, which is ...
s). The nuclear facility supplies 60% of the European demand for medical isotopes. Also at the high flux reactor, one of the neutron beam channels, which was originally installed for performing fundamental research, has been specially modified for the direct irradiation of patients. This allows use of neutrons for the treatment of tumors after saturation of these tumors with a pharmaceutical containing boron. When hit by a weak neutron beam, boron will locally emit radiation that will destroy the tumor. This technique is mainly suitable for the treatment of brain tumors.


Technology

, only
low-enriched uranium Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (23 ...
fuel was used at the facilities in Petten. As a result of political pressure from the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
and the
International Atomic Energy Agency The International Atomic Energy Agency (IAEA) is an intergovernmental organization that seeks to promote the peaceful use of nuclear energy and to inhibit its use for any military purpose, including nuclear weapons. It was established in 1957 ...
(IAEA), research reactors are no longer allowed to use
highly enriched uranium Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (238U ...
fuel because of its potential use for the production of
nuclear weapons A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb ...
. The use of
highly enriched uranium Enriched uranium is a type of uranium in which the percent composition of uranium-235 (written 235U) has been increased through the process of isotope separation. Naturally occurring uranium is composed of three major isotopes: uranium-238 (238U ...
targets for the production of medical isotopes was discontinued in January 2018.


The high flux reactor

The high flux reactor in Petten has been in use since 1961. The first criticality was obtained on 9 November 1961. The reactor was furnished by Allis-Chalmers. Its capacity was increased in steps to 45 MW (thermal) by 1970. The reactor is property of the
European Commission The European Commission (EC) is the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission (informally known as "Commissioners") headed by a President. It includes an administrative body o ...
and is operated by the Nuclear Research and Consultancy Group (NRG). the reactor is expected to remain operational until 2024, when it will be replaced at Petten by a new high flux reactor (PALLAS). From August 2008 the reactor was shut down due to corrosion of the pipes in its primary cooling circuit. The operator is expecting to bring the plant back on-line in February 2009.


The low flux reactor

The low flux reactor was first used in 1960 and permanently shut down in 2010. It had a capacity of 30 kW. The reactor was property of the Nuclear Research and Consultancy Group (NRG) and mainly used for the production of
neutrons The neutron is a subatomic particle, symbol or , which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms. Since protons and neutrons behave ...
for biological and physical research.


Timeline

In 2009 the
Argentine Argentines (mistakenly translated Argentineans in the past; in Spanish (masculine) or (feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, s ...
company
INVAP INVAP S.E. is an Argentine company that provides design, integration, construction and delivery of equipment, plants and devices. The company operates in North America, Europe, Asia Pacific, Latin America, the Middle East and Africa, and delivers p ...
(teamed with Spanish group Isolux) was pre selected in the international tender for the PALLAS project, for the procurement of an 80 MW nuclear reactor for the
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...
village of
Petten Petten is a village in the Dutch province of North Holland. It is a part of the municipality of Schagen, and lies about 15 km northwest of Alkmaar, on the North Sea. The population is ca. 1900. Petten's economy is based on agriculture (bul ...
but in February 2010, the Dutch radiopharmaceutical producer Nuclear Research and Consultancy Group ( NRG) extended the preparatory phase up to end of the year for financing In mid-May 2014, NRG, the company that operates the reactor, asked for a bridging loan at the Dutch Ministry of Economic Affairs, because of the financial losses in the previous years. A bankruptcy could not be ruled out, if the credit would be refused. In addition, there were negotiations with the banks, because of the estimated 80 million euros, needed for the upcoming maintenance of the 50-year-old reactor.(Dutch) KRO brandpunt reporter (15 May 2014
nuclear reactor Petten almost bankrupt


See also

*
Chalk River Laboratories Chalk River Laboratories (french: Laboratoires de Chalk River; also known as CRL, Chalk River Labs and formerly Chalk River Nuclear Laboratories, CRNL) is a Canadian nuclear research facility in Deep River, about north-west of Ottawa. CRL is a ...
, a nuclear facility in Ontario that formerly produced North America's supply of isotopes for nuclear medicine


References


External links

*
Nuclear Research and consultancy Group

Energy Research Centre of the Netherlands
{{Authority control Nuclear research reactors Schagen Nuclear technology in the Netherlands