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U.S. Transuranium and Uranium Registries News

Anthony Riddell from Public Health England joins adjunct faculty to USTUR

Tony Riddell has been appointed as an adjunct faculty member with the USTUR, he has more than thirty years’ of internal dosimetry experience and also within related areas of research such as epidemiology and radiobiology. Mr. Riddell leads the Internal Dosimetry Group at Public Health England (PHE), where he is responsible for the management and delivery of the United Kingdom’s national internal dose assessment capability and a program of research which supports this capability and the work of organisations such as the International Commission on Radiological Protection.

Having shared research interests in areas such as radionuclide metabolism, dosimetry and potential exposure risks, USTUR has collaborated with Mr. Riddell and PHE over many years. In 2018, Mr. Riddell facilitated a Memorandum of Understanding (MOU) between the USTUR and PHE’s Centre for Radiation Chemical and Environmental Hazards (CRCE) to help further this mutually beneficial relationship. Among other things, this MOU allowed PHE to share its newly developed internal dosimetry software, Taurus, with the USTUR for research purposes. The base model of Taurus is designed for operational dose assessment, but the USTUR will make use of an advanced version of the software to study the movement of actinides, such as plutonium, through the human body, and to calculate doses from intakes of those elements. The USTUR looks forward to continued collaboration with Mr. Riddell and PHE-CRCE.

Special issue of Health Physics journal features USTUR research

The August issue of Health Physics was dedicated to a special issue on USTUR research. Presentations from the USTUR’s one-day special session of the 2019 Health Physics Society meeting were published as full length articles, along with an introduction to the special issue and a summary of the roundtable discussion. The special issue was published as one of several activities designed to commemorated 50 years of research at the USTUR.

Commemorative Activities

Commentary: Worthington, P.R., 2019. Introduction to the US Transuranium and Uranium Registries (USTUR) Special Issue. Health Physics 117, 117.

Scientific Manuscripts:

  1. Kathren, R.L., Tolmachev, S.Y., 2019. The United States Transuranium and Uranium Registries (USTUR): A five-decade follow-up of plutonium and uranium workers. Health Physics 117, 118-132.
  2. Birchall, A., Puncher, M., Hodgson, A., Tolmachev, S.Y., 2019. The importance and quantification of plutonium binding in human lungs. Health Physics 117, 133-142.
  3. Goans, R.E., Toohey, R.E., Iddins, C.J., McComish, S.L., Tolmachev, S.Y., Dainiak, N., 2019. The Pseudo-Pelger Huët Cell as a Retrospective Dosimeter: Analysis of a Radium Dial Painter Cohort. Health Physics 117, 143-148.
  4. Avtandilashvili, M., Tolmachev, S.Y., 2019. Modeling the skeleton weight of an adult Caucasian man. Health Physics 117, 149-155.
  5. Dumit, S., Avtandilashvili, M., Tolmachev, S.Y., 2019. Evaluating plutonium intake and radiation dose following extensive chelation treatment. Health Physics 117, 156-167.
  6. Breustedt, B., Avtandilashvili, M., McComish, S.L., Tolmachev, S.Y., 2019. USTUR Case 0846: Modeling americium biokinetics after intensive decorporation therapy. Health Physics 117, 168-178.
  7. Tabatadze, G., Miller, B.W., Tolmachev, S.Y., 2019. Mapping 241Am spatial distribution within anatomical bone structures using digital autoradiography. Health Physics 117, 179-186.
  8. Zhou, J.H., McComish, S.L., Tolmachev, S.Y., 2019. A Monte Carlo t-test to evaluate mesothelioma and radiation in the U.S. Transuranium and Uranium Registries. Health Physics 117, 187-192.
  9. Lopez, M.A., Nogueira, P., Vrba, T., Tanner, R.J., Ruhm, W., Tolmachev, S.Y., 2019. Measurements and Monte Carlo simulations of 241Am activities in three skull phantoms: EURADOS-USTUR Collaboration. Health Physics 117, 193-201.
  10. Tolmachev, S.Y., Avtandilashvili, M., Kathren, R.L., 2019. Estimation of total skeletal content of plutonium and 241Am from analysis of a single bone. Health Physics 117, 202-210.

Forum Article: Tolmachev, S.Y., Swint, M.J., Bistline, R.W., McClellan, R.O., McInroy, J.F., Kathren, R.L., Filipy, R.E., Toohey, R.E., 2019. USTUR special sessions roundtable: United States Transuranium and Uranium Registries (USTUR): A five-decade follow-up of plutonium and uranium workers. Health Physics 117, 211-222.

Special session
Meet the roundtable participants

USTUR signs MOU with the Centre for Radiation Chemical and Environmental Hazards

Last December, the USTUR signed a Memorandum of Understanding (MOU) with the Centre for Radiation Chemical and Environmental Hazards (CRCE), Public Health England. This partnership formalizes collaboration between the two organizations, and allows PHE to share its newly developed internal dosimetry software, Taurus, with the USTUR for research purposes. Initially, the USTUR will work with the base model, which is designed for operational dose assessment. However, PHE is also designing an advanced version of Taurus for use in research, which the USTUR will use to model individual registrant cases. This partnership was facilitated by Sergei Tolmachev (USTUR director) and Anthony Riddell (PHE-CRCE Internal Dosimetry Group leader).

Memorandum of Understanding

Tabatadze appointed to WSU Radiation Safety Committee

USTUR Assistant Research Professor George Tabatadze was appointed as a member of the WSU Radiation Safety Committee (RSC). The RSC establishes and ensures compliance with radiation protection policies, reviews applications for and approves use of radioactive materials and radiation producing machines, and audits Radiation Safety Office records.

WSU Radiation Safety Committee

Postdoctoral opportunity at the USTUR

A Postdoctoral Research Associate position is available immediately at the USTUR. The research will focus on evaluation of uncertainties in radiation dose assessment for internally deposited radionuclides in support of radiation epidemiology. The successful candidate will also have the opportunity to work on several biokinetic modeling projects in close collaboration with operational health physicists, biostatisticians, and radiochemists.

More Information

2018 Annual Report

The FY2018 USTUR Annual Report has been completed and is available for download. It summarizes organization, activities, and scientific accomplishments at the USTUR from April 1, 2017 to March 31, 2018.

Download Report

Avtandilashvili gives keynote lecture at dosimetry conference

Maia Avtandilashvili was invited to provide a keynote lecture at the 12th International Conference on the Health Effects of Incorporated Radionuclides (HEIR). This conference, which is held every 4 years, focuses on topics related to radionuclides that have been incorporated into the human body. In total, USTUR faculty gave four presentations at HEIR – two by Dr. Avtandilashvili and two by USTUR director, Sergei Tolmachev.

HEIR website
USTUR presentations

National and international scientists tour the USTUR’s laboratory facility


Oleg Belyakov (center) with USTUR faculty during the laboratory tour

Three tours of the USTUR’s laboratory facility were given to attendees of the Low Dose Conference in Richland, WA, September 30 – October 3, 2018.

Prior to the meeting, Oleg Belyakov of the International Atomic Energy Agency (IAEA) gave a presentation at the USTUR titled, “Overview of NAHU/ARBR Radiation Biology Coordinated Research Projects (CRPs)”. This was followed by a tour of the laboratory facility, which includes an autopsy room, a radiochemistry laboratory, an alpha spectrometry counting room, and a sample storage area.

During the conference, several additional individuals expressed interest in a laboratory tour. A tour was given to Michael Bellamy and Sandra Davern of Oak Ridge National Laboratory, and Yuliya Lyamzina of Fukushima Medical University, Japan. The different types of tissue materials that are available at the USTUR, such as frozen organs and paraffin embedded tissue blocks, were discussed. Following the tour, Maia Avtandilashvili demonstrated unique features of the USTUR’s academic version of the Integrated Modules for Bioassay Analysis (IMBA) biokinetic modeling software. An additional tour was given to Doug Boreham (Bruce Power, Canada), Stephanie Puukila (Flinders University, Australia and Laurentian University, Canada), Jake Pirkkanen (Laurentian University, Canada), and Christopher Thome (Northern Ontario School of Medicine, Canada).