Pub Date : 2022-03-15DOI: 10.3769/radioisotopes.71.55
S. Todoriki
{"title":"(1) Food Irradiation—Outline of the Technology, History of Evaluation, and Research and Development—","authors":"S. Todoriki","doi":"10.3769/radioisotopes.71.55","DOIUrl":"https://doi.org/10.3769/radioisotopes.71.55","url":null,"abstract":"","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81706669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-15DOI: 10.3769/radioisotopes.71.29
Hideki Fujino, E. Nagata
{"title":"Development of 14C Surface Sources for Imaging Plate Using an Ink-jet Printer","authors":"Hideki Fujino, E. Nagata","doi":"10.3769/radioisotopes.71.29","DOIUrl":"https://doi.org/10.3769/radioisotopes.71.29","url":null,"abstract":"","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83760162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-15DOI: 10.3769/radioisotopes.71.41
Y. Uwamino, H. Mukai
{"title":"Response of Gamma-ray Ionization-Chamber Survey Meter to Neutrons","authors":"Y. Uwamino, H. Mukai","doi":"10.3769/radioisotopes.71.41","DOIUrl":"https://doi.org/10.3769/radioisotopes.71.41","url":null,"abstract":"","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"242 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76736512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-15DOI: 10.3769/radioisotopes.71.1
S. Tomita, K. Higashikawa, Yuki Mizuno, Tetsuroh Tada, Shusaku Tazawa, Y. Kuge
{"title":"Long-Term Radiation Safety Evaluation of 68Ge/68Ga Generator","authors":"S. Tomita, K. Higashikawa, Yuki Mizuno, Tetsuroh Tada, Shusaku Tazawa, Y. Kuge","doi":"10.3769/radioisotopes.71.1","DOIUrl":"https://doi.org/10.3769/radioisotopes.71.1","url":null,"abstract":"","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75157422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-15DOI: 10.3769/radioisotopes.70.329
T. Mikamoto, T. Kurosawa, Masahiro Kato, J. Ishii, Y. Wakitani
{"title":"Determination of Radiation Quality Correction Factor ksource for HDR Brachythrrapy —Application to 60Co Sources and New 192Ir Source—","authors":"T. Mikamoto, T. Kurosawa, Masahiro Kato, J. Ishii, Y. Wakitani","doi":"10.3769/radioisotopes.70.329","DOIUrl":"https://doi.org/10.3769/radioisotopes.70.329","url":null,"abstract":"","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83943824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-15DOI: 10.3769/RADIOISOTOPES.70.323
T. Tatsuno, A. Inada, H. Tsukada
Archive Soil Samples Collected in Fukushima Prefecture and Surrounding Areas after TEPCO Fukushima Daiichi Nuclear Power Plant Accident and Construction of Archive Soil Database System Takahiro Tatsuno1, †, Aya Inada1, 2 and Hirofumi Tsukada1: 1 Institute of Environmental Radioactivity, Fukushima University, 2 Faculty of Wellness Studies, Kwassui Women’s University, † t.tatsuno@ier.fukushima-u.ac.jp Institute of Environmental Radioactivity (IER) at Fukushima University stores approximately 18,000 soil samples received from the Nuclear Regulation Authority, which were collected after the Fukushima Daiichi Nuclear Power Plant accident. The IER is providing a loan service of the archive soil samples and using a database system for the samples. The database system consists of two parts: a data set of the soil samples collected during the first to seventh survey, and a system called ARASO (Assessment Database System for Radioactivity in Soil) which allows us to view and search the soil data from the first survey on a map. ARASO has useful functions, such as, calculating of radioactivity in the specified area and searching for the soil samples according to the research object. It is highly expected that ARASO will promote the utilization of archive soil samples and contribute to the research progress on the radioactivity assessment as well as the fate of radioactive materials in the environment. (Received February 4, 2021) (Accepted March 29, 2021)
{"title":"Archive Soil Samples Collected in Fukushima Prefecture and Surrounding Areas after TEPCO Fukushima Daiichi Nuclear Power Plant Accident and Construction of Archive Soil Database System","authors":"T. Tatsuno, A. Inada, H. Tsukada","doi":"10.3769/RADIOISOTOPES.70.323","DOIUrl":"https://doi.org/10.3769/RADIOISOTOPES.70.323","url":null,"abstract":"Archive Soil Samples Collected in Fukushima Prefecture and Surrounding Areas after TEPCO Fukushima Daiichi Nuclear Power Plant Accident and Construction of Archive Soil Database System Takahiro Tatsuno1, †, Aya Inada1, 2 and Hirofumi Tsukada1: 1 Institute of Environmental Radioactivity, Fukushima University, 2 Faculty of Wellness Studies, Kwassui Women’s University, † t.tatsuno@ier.fukushima-u.ac.jp Institute of Environmental Radioactivity (IER) at Fukushima University stores approximately 18,000 soil samples received from the Nuclear Regulation Authority, which were collected after the Fukushima Daiichi Nuclear Power Plant accident. The IER is providing a loan service of the archive soil samples and using a database system for the samples. The database system consists of two parts: a data set of the soil samples collected during the first to seventh survey, and a system called ARASO (Assessment Database System for Radioactivity in Soil) which allows us to view and search the soil data from the first survey on a map. ARASO has useful functions, such as, calculating of radioactivity in the specified area and searching for the soil samples according to the research object. It is highly expected that ARASO will promote the utilization of archive soil samples and contribute to the research progress on the radioactivity assessment as well as the fate of radioactive materials in the environment. (Received February 4, 2021) (Accepted March 29, 2021)","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"88 1","pages":"323-327"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80264559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-15DOI: 10.3769/RADIOISOTOPES.70.311
Kodai Nishi
Small-animal molecular imaging is recognized as a method that bridges basic study and clinical research. However, the imaging system is not easily available to ev-eryone due to the peculiarity of handling and management. Here the author describe the basic of preclinical positron emission tomography (PET) and single photon emission computed tomography (SPECT) for beginners.
{"title":"Preclinical Nuclear Medicine Imaging Guide for Beginner","authors":"Kodai Nishi","doi":"10.3769/RADIOISOTOPES.70.311","DOIUrl":"https://doi.org/10.3769/RADIOISOTOPES.70.311","url":null,"abstract":"Small-animal molecular imaging is recognized as a method that bridges basic study and clinical research. However, the imaging system is not easily available to ev-eryone due to the peculiarity of handling and management. Here the author describe the basic of preclinical positron emission tomography (PET) and single photon emission computed tomography (SPECT) for beginners.","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"31 1","pages":"311-321"},"PeriodicalIF":0.0,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80014227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-15DOI: 10.3769/RADIOISOTOPES.70.261
Chiaki Shimaoka, T. Kakizaki, Seiichi Wada, Yoshinori Tanaka, T. Abe, M. Natsuhori
Pharmacokinetic (PK) parameters of stable caesium (SCs) were determined in adult Japanese Black Cattle (JBC, n=20). They were divided into two groups, i.e, intravenous (IV) and oral (PO) administration groups, and each of them was administered 133 CsCl solution (20 mg/kg b.w.). SCs in biological samples was measured by ICP-MS, and their concentration-time courses were monitored for 182 days. The PK parameters determined in plasma and blood in each group were as follows (mean±SD); area under the concentration-time curve (AUC;µg/L · h): 0.54±0.06 (IVp), 0.42±0.05 (POp), 0.87±0.11 (IVb), and 0.71±0.33 (POb), mean residence time (MRT; day); 20.9±3.2 (IVp), 19.3±2.9 (POp), 24.7±3.6 (IVb), and 23.6±5.2 (POb), bioavailability (F%); 82±29 and 83±38, clearance (CL; mL/min/kg): 0.46±0.05 (IVp), 0.49±0.06 (POp), 0.29±0.04 (IVb), and 0.31±0.08 (POb), and distribution volume (Vd; L/kg) was 3.3 (Vdp) and 4.4 (Vdb). The biological half-life of the terminal elimination phase (T1/2) was estimated to be approximately 30 days. The urine recovery for the dose was 28±6 (IV) and 28±8 (PO), and the fecal recovery was 85±21 (IV) and 122±42% (PO). The time course via both routes of administration showed similar biphasic distribution and elimination profile in any biological samples and elucidated by compartment analysis with consideration of background level. Based on the PK parameters, elimination profile of radioactive caesium (RCs) from the JBC kept long in the RCs contaminated area can be explained.
{"title":"Pharmacokinetics of Stable Caesium after Single Administration of Caesium Chloride in Japanese Black Cattle","authors":"Chiaki Shimaoka, T. Kakizaki, Seiichi Wada, Yoshinori Tanaka, T. Abe, M. Natsuhori","doi":"10.3769/RADIOISOTOPES.70.261","DOIUrl":"https://doi.org/10.3769/RADIOISOTOPES.70.261","url":null,"abstract":"Pharmacokinetic (PK) parameters of stable caesium (SCs) were determined in adult Japanese Black Cattle (JBC, n=20). They were divided into two groups, i.e, intravenous (IV) and oral (PO) administration groups, and each of them was administered 133 CsCl solution (20 mg/kg b.w.). SCs in biological samples was measured by ICP-MS, and their concentration-time courses were monitored for 182 days. The PK parameters determined in plasma and blood in each group were as follows (mean±SD); area under the concentration-time curve (AUC;µg/L · h): 0.54±0.06 (IVp), 0.42±0.05 (POp), 0.87±0.11 (IVb), and 0.71±0.33 (POb), mean residence time (MRT; day); 20.9±3.2 (IVp), 19.3±2.9 (POp), 24.7±3.6 (IVb), and 23.6±5.2 (POb), bioavailability (F%); 82±29 and 83±38, clearance (CL; mL/min/kg): 0.46±0.05 (IVp), 0.49±0.06 (POp), 0.29±0.04 (IVb), and 0.31±0.08 (POb), and distribution volume (Vd; L/kg) was 3.3 (Vdp) and 4.4 (Vdb). The biological half-life of the terminal elimination phase (T1/2) was estimated to be approximately 30 days. The urine recovery for the dose was 28±6 (IV) and 28±8 (PO), and the fecal recovery was 85±21 (IV) and 122±42% (PO). The time course via both routes of administration showed similar biphasic distribution and elimination profile in any biological samples and elucidated by compartment analysis with consideration of background level. Based on the PK parameters, elimination profile of radioactive caesium (RCs) from the JBC kept long in the RCs contaminated area can be explained.","PeriodicalId":20809,"journal":{"name":"Radioisotopes","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87085462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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