Determination of Pu-239 in Urine by Sector Field Inductively Coupled Plasma Mass Spectrometry (SF-ICP-MS) Using an Automated Offline Sample Preparation Technique [0.03%]
一种自动化离线样品处理技术用于尿样中Pu-239的 sector field ICP-MS 测定方法
Ge Xiao,Robert L Jones
Ge Xiao
Here we report a new procedure to determine Pu-239 in urine using a custom-made automated pre-analytical processing system (single probe) with Pu-242 as a tracer followed by analysis by SF-ICP-MS. An average Pu-242 recovery rate of 88% was ...
CORRECTION to: Primary Standardization of the massic activity of a 233Pa solution, DOI:10.1007/S10967-018-6113-9 [0.03%]
对《233Pa溶液质量活度的一级标准比doi：10.1007/s10967-018-6113-9的修正》
Ryan Fitzgerald,Leticia Pibida
Ryan Fitzgerald
[This corrects the article PMC6459618.].
Impact of lockdown during COVID-19 pandemic on annual effective dose equivalent values of natural gamma radiation [0.03%]
新冠流行期间封城对天然γ射线年有效剂量当量的影响
Manoj Kumar Jindal,Santosh Kumar Sar
Manoj Kumar Jindal
The study aimed to determine the impact of COVID-19 on values of annual effective dose equivalent of the natural gamma dose rate of Balod, Durg and Bemetara districts of Chhattisgarh (India). COVID-19 is a severe problem for many countries ...
Electrochemical precipitation of neptunium with a micro electrochemical quartz crystal microbalance [0.03%]
利用微电化学石英晶体微天平研究镎的电化学沉淀行为
Adan Schafer Medina,Gretchen Tibbits,Nathalie A Wall et al.
Adan Schafer Medina et al.
Microliter volumes are used in electrochemical detection and preconcentration of radionuclides to reduce the dose received by researchers and equipment. Unfortunately, there is a lack of analysis of radionuclides with coupled electrochemica...
Determination of 237Np and 239Pu in Urine Using Sector Field Inductively Coupled Plasma Mass Spectrometry (SF-ICP-MS) [0.03%]
利用扇形场电感耦合等离子体质谱法测定尿液中的²³⁷Np和²³⁹Pu
Ge Xiao,Yongzhong Liu,Robert L Jones
Ge Xiao
Measuring 237Np and 239Pu in urine at low levels is important for both biomonitoring and radiological emergency response. Here we report a newly developed and validated analytical method used to determine 237Np and 239Pu in urine by selecti...
Richard M Essex,Ross W Williams,Kerri C Treinen et al.
Richard M Essex et al.
A 231Pa reference material has been characterized for amount of protactinium. This reference material is primarily intended for calibration of 233Pa tracers produced for 235U-231Pa model age measurements associated with nuclear forensics an...
Cong Wei,Kelly Garnick,Thomas Scott et al.
Cong Wei et al.
Based on the original work of Rutherford (Radio-activity, 1905) and Bateman (Proc Camb Philos Soc 15:423-427, 1910), the authors designed two schemes consisting of explicit equations as simple methods for accurately obtaining activity of 90...
Spectroscopic Compton imaging of prompt gamma emission at the MeV energy range [0.03%]
基于MeV能量范围的瞬发光谱康普顿成像
Haijian Chen,Huaiyu H Chen-Mayer,Danyal J Turkoglu et al.
Haijian Chen et al.
This work explores a novel tomographic approach to PGAA that is both quantitative and spatially resolved, adapted from a clinical "proton beam range finder" in which MeV gamma rays are imaged by coincidence measurements of Compton scattered...
A reference material for evaluation of 137 Cs radiochronometric measurements [0.03%]
一种用于评价放射性核素¹³⁷Cs定年方法的参考物质
Kevin B Lavelle,Richard M Essex,Kevin P Carney et al.
Kevin B Lavelle et al.
A new nuclear forensic reference material has been characterized as a standard for radiochronometric determination of the model purification date for 137Cs sources. The purification date of a radioactive source is a potentially diagnostic n...
PRIMARY STANDARDIZATION OF THE MASSIC ACTIVITY OF A PROTACTINIUM-233 SOLUTION [0.03%]
233Pa溶液质量活度的绝对测定
Ryan Fitzgerald,Leticia Pibida
Ryan Fitzgerald
Protactinium-233 (233Pa) is used as a tracer for radiochemical analysis and is of particular interest as an isotope dilution mass spectrometry (IDMS) spike for 231Pa/235U radio-chronometry. To this end, we present massic activity determinat...