Australian news, and some related international items

New developments: particle accelerators could make Lucas Heights’ Opal nuclear reactor obsolete. And the pro Kimba waste dump argument useless.

Greg Phillips , Nuclear Fuel Cycle Watch Australia, 14 May 21

Lest we forget. The majority of the radioactivity they want to send to SA/Kimba is from the production of medical isotopes using a method that should be replaced by much cleaner/safer/reliable accelerator/cyclotron methods:”Pallas’s original business case was mainly based on the production of technetium-99m, which is obtained from molybdenum-99 via a generator. Despite the initially favorable forecasts for this reactor isotope, the business case ultimately did not hold up. This is partly due to the rise of the cyclotron, the linear particle accelerator (linac), and the advent of new large-scale production techniques, based on systems or reactors driven by particle accelerators, such as SHINE.

In the current market, the major role of research reactors is mainly determined by the production of technetium-99m, a SPECT isotope and by far the most widely used medical isotope in radiodiagnostics. But new suppliers will soon be entering the market, including SHINE, producers with cyclotrons, and a series of suppliers with linacs.More important than the future production of technetium-99m is the amazing innovative power of the accelerator technology.

For example, the PET isotope rubidium-82 has been marketed fairly recently for measuring the blood flow in the heart muscle. However, this treatment will soon face competition from the even more efficient PET drug fluorine-18 Flurpiridaz.

Although these treatments are more expensive than traditional technetium-99 (SPECT) treatment, they can compete because the imaging is very accurate and takes place in “real time”. This means that one treatment suffices, saving costs.

Pallas’ latest business case focuses mainly on the production of therapeutic isotopes for the treatment of cancer and tumors, with beta-emitter isotopes such as lutetium-177 and yttrium-90 in particular determining the picture in this growing market. But here too the question applies: can Pallas really withstand the innovative power of accelerator technology? Then it is not so much about SHINE, which can certainly become a formidable competitor of reactor manufacturers for the production of lutetium-177 (and later also yttrium-90), but mainly about the advance of new generations of therapeutic accelerator isotopes. For example, alpha emitters, and a new class of beta emitters, will conquer an increasing part of the current beta emitter market. …” more


May 15, 2021 Posted by | AUSTRALIA - NATIONAL, health, wastes | Leave a comment

Ionising radiation was proven to be bad for dogs. Does that mean it’s good for humans?

The effects of ionizing radiation on domestic dogs: a review of the atomic bomb testing era, Wiley Online Library , Gabriella J. SpatolaElaine A. Ostrander Timothy A. Mousseau 13 May 2021 


Dogs were frequently employed as laboratory subjects during the era of atomic bomb testing (1950–1980), particularly in studies used to generate predictive data regarding the expected effects of accidental human occupational exposure to radiation. The bulk of these studies were only partly reported in the primary literature, despite providing vital information regarding the effects of radiation exposure on a model mammalian species. Herein we review this literature and summarize the biological effects in relation to the isotopes used and the method of radionuclide exposure. Overall, these studies demonstrate the wide range of developmental and physiological effects of exposure to radiation and radionuclides in a mid‐sized mammal.

………………………………………………III. CONCLUSIONS

  1. Domestic canines commonly share the same environment, lifestyle, and exposure to pollutants as their human counterparts (Mazzatenta et al., 2017; Ostrander et al., 2017). Coupled with their larger body size and longer lifespan compared to other frequently used model organisms, this makes the canine model a useful tool in studying radiation‐induced diseases.
  2. Frequent effects of radiation exposure in dogs include haematological changes, infertility, and cancer of the bone, liver, lung, and blood, among others. Effects depend on the radionuclide, method of exposure, age at exposure, dose rate, and total exposure dose.

    1. With an increasing demand for nuclear power comes a higher risk of nuclear accidents, and studies of radiation exposures in domestic dogs have provided valuable information for understanding the repercussions for accidentally exposed populations.
    2. Although experiments done in a laboratory setting have proved illuminating, more studies are needed on natural populations affected by past radiological disasters in order to further our understanding of how laboratory results may apply, as such populations are affected by potentially confounding environmental factors. In addition, the vast background knowledge provided by early radiation studies on dogs could allow meaningful conclusions to be drawn regarding the application of laboratory results to natural populations………………

May 15, 2021 Posted by | Uncategorized | Leave a comment

South Korean fishermen sue Japanese government over Fukushima nuclear plant water

South Korean fishermen sue Japanese government over Fukushima nuclear plant water, WION Web TeamSeoul, South Korea, May 13, 2021, 

South Korean fisheries associations filed a lawsuit against the Japanese government at a local court on Thursday, seeking compensation for the planned release of contaminated water from the Fukushima nuclear power plant, the Yonhap news agency reported.

The National Federation of Fisheries Cooperatives of Jeju Island and a shipowners’ association told a news conference outside the Jeju District Court they were demanding about 10 million won ($8,800) per day from the Japanese government and Tokyo Electric Power Company Holdings.

Local fishing communities worry that years of work to convince consumers that Fukushima’s seafood is safe will be wiped out by the release.

Japan’s government said in April it would release more than 1 million tonnes of treated water from the Fukushima site in stages starting in about two years…….

Environmental groups like Greenpeace, which opposes nuclear power, say radioactive materials like carbon-14 that remain in the water can “be easily concentrated in the food chain”.

They allege accumulated doses over time could damage DNA, and want to see the water stored until technology is developed to improve filtration.

May 15, 2021 Posted by | Uncategorized | Leave a comment