File:Chernobyl lava flow.jpg
Summary
{{Information
| description =
{{en|This is an iconic picture of the fuel lava (FCM, Corium) flowing out of a Parosbrosnoy valve from within the Chernobyl plant. The Parosbrosnoy valve (Клапан аварийного паросброса) is the pipe node to dump extremely high pressure steam out of the hot reactor core ("Parosbrosnoy" in Russian means "steam relief").
1. No free alternative exists. It remains impossible to manually rephotograph the scene without placing a person in mortal danger. Given an uneconomically large budget, it would in principle be possible to build a robot that could enter the plant and retake the photo.
2. The use of the picture here is unlikely to damage the copyright holder's ability to make any money out of the picture.
3. A small amount of the media is being used.
4. The photo has been shown on TV in the UK (back in about 1991)
5. The material is encyclopedic
6. The material will be used on more than one page
7. The material is not decorative
8. The material is to be only used in an article.
9. The picture of the lava flow explains what happens to nuclear fuel under very bad accident conditions. Rather than using the 'Elephant's Foot' I have chosen to use the picture of the lava coming out of a pipe as it shows that that it did slow. The understanding of the lava is critical to understanding the likely release of much of the activity still within the plant which will occur potentially in the future.
10. The picture is used on the Chernobyl page to show what happened in the basement under the reactor and also it is used on the page devoted to how nuclear fuel behaves during an accident to show what can occur if a reactor core melts and then escapes out of the pressure vessel. So I say that it should stay rather than being removed.
}}
| source =
- downloaded from the INSP digital library [https://web.archive.org/web/20060217164132/http://insp.pnl.gov/photobook/UK_CH/picturefiles/161.html insp.pnl.gov/photobook/UK_CH/picturefiles/161.html ] (link to a web.archive copy of the original insp.pnl.gov page UK_CH_362)
- [https://web.archive.org/web/20060217172951/http://insp.pnl.gov/photobook/UK_CH/picturefiles/161_kl.jpg a web.archive version of the original image ]
- photo UK-CH-362 on [http://insp.pnnl.gov/-library-uk_ch_5.htm Ukraine, Chornobyl Photos, page 5] at the Pacific Northwest National Laboratory (PNNL pnl.gov) [http://insp.pnnl.gov/-library.htm INSP Digital Library. Historical data from the International Nuclear Safety Program (INSP project)]
- caption UK-CH-362 from the [http://insp.pnnl.gov/-library-caption.htm INSP Captions list] here reproduced in the Additional information section
| date = (?)late 1986
| author = unknown
| permission = see the use rationale described above as well as down below
| other_versions =
| additional_information =
{{en|Inside Chornobyl NPP Unit 4 showing solidified corium "flowing" out of a Steam Distribution Header (SDH) in Room 210/6 of the Steam Distribution Corridor. Note that the SDH appears to have suffered very little damage from the melted fuel. Note also the unmelted chain hanging from the left portal of the SDH. Photo credit: The Kurchatov Institute (Russia) and the ISTC-Shelter (Ukraine). Photographer: – }}
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Licensing
{{Non-free historic image|image has rationale=yes}}
{{Non-free use rationale
|Article=Chernobyl disaster
|Description=This is an iconic picture of a lava flow from within the Chernobyl plant.
|Source=http://insp.pnl.gov/photobook/UK_CH/picturefiles/161.html
|Portion=
|Low_resolution=No
|Purpose=The picture is used on the Chernobyl page to show what happened in the basement under the reactor. It is used on the page devoted to how nuclear fuel behaves during an accident to show what can occur if a reactor core melts and escapes out of the pressure vessel.
|Replaceability=No
|other_information=
}}
{{Non-free use rationale
|Article=Behavior of nuclear fuel during a reactor accident
|Description=this is an iconic picture of a lava flow from within the Chernobyl plant.
|Source=http://insp.pnl.gov/photobook/UK_CH/picturefiles/161.html
|Portion=
|Low_resolution=
|Purpose=The picture of the lava flow explains what happens to nuclear fuel under very bad accident conditions. Rather than using the 'Elephant's Foot' I have chosen to use the picture of the lava coming out of a pipe as it shows that that it did slow. The understanding of the lava is critical to understanding the likely release of much of the activity still within the plant which will occur potentially in the future.
|Replaceability=No
|other_information=
}}