Yongbyon Nuclear Complex: New evidence of increased activity

Night-time lights visible at the Yongbyon radiochemical laboratory suggest that North Korea is covertly importing spent fuel rods for plutonium extraction reprocessing

DAILY NK By Bruce Songhak Chung, 16 July 24

Evidence suggests that North Korea is ramping up production of plutonium and uranium nuclear materials at the radiochemical laboratory and uranium enrichment facility in the Yongbyon nuclear complex, as it has begun full-scale operation of the experimental light water reactor this summer. Recently, major foreign media outlets covering North Korea have debated and verified the reliability of the thermal infrared analysis of the Yongbyon facility presented in a Daily NK column I published in May. This article summarizes thoughts and opinions on this matter, and also examines what is behind the intermittent night lights observed in Yongbyon through night-time luminosity images.

Recent conditions at the Yongbyon reactor and light water reactor area were examined using Maxar’s GeoEye-1 satellite imagery (40 centimeter resolution). In the June 19 satellite photo, heated cooling water from the reactor and light water reactor operation is clearly identified being discharged into the Kuryong River through two pump stations, accompanied by white foam. This marks the 16th cooling water discharge detected this year. As it continues to appear in satellite images since late April, the experimental light water reactor appears to have entered full-scale operation. The South Korean Ministry of National Defense had previously predicted that the Yongbyon light water reactor would enter normal operation in or around the summer months.

Below the second pump station, a yellow substance spread out in a rectangular shape can be seen on the ground. This could be wheat or barley being dried after harvest. In North Korea, mid-June is the peak harvest time for wheat and barley in the fields, followed typically by planting corn as the year’s second crop. Soldiers and workers guarding the Yongbyon nuclear facility appear to be engaging in farming activities in empty spaces within the complex as food rations are insufficient.

Analysis of Yongbyon thermal infrared satellite imagery………………………………………………………………………………………..

Repairs of the boiler room in the Yongbyon thermal power plant ………………………………………………………

Mysterious late night lights at the radiochemical laboratory………………………………………………………….

influential foreign media outlets recently released an assessment about thermal infrared analysis, which is used to determine the operational status of the Yongbyon nuclear facilities. The prominent U.S. North Korea-focused website Beyond Parallel has provided an in-depth analysis of the reliability of thermal infrared data. I read the three articles with great interest. The conclusion of the series of articles evaluated the results of the thermal infrared analysis of North Korea’s Yongbyon nuclear facilities as generally reliable. The outlet explained that after obtaining and comparing Yongbyon facility operation records for over two years held by the U.N., the results largely matched those of the thermal infrared analysis. When high heat was detected in the thermal infrared data, it corresponded with the operation of the Yongbyon facilities. However, the caveat was that facilities operating at low intensity might not be detected due to weak heat emissions. They also recommended drawing comprehensive conclusions by combining thermal infrared analysis with various other data, as there are still imperfections in the analysis. This is valuable advice worth noting.

Please send any comments or questions about this article to dailynkenglish@uni-media.net. https://www.dailynk.com/english/yongbyon-nuclear-complex-new-evidence-of-increased-activity/

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July 16, 2024