Results 101 to 110 of about 222,216 (254)

Dose Calibrator Linearity Testing: Radioisotope 99mTc or 18F? An Alternative for Reducing Costs in Nuclear Medicine Quality Control

World Journal of Nuclear Medicine, 2015
Dose calibrator linearity testing is indispensable for evaluating the capacity of this equipment in measuring radioisotope activities at different magnitudes, a fundamental aspect of the daily routine of a nuclear medicine department, and with an impact ...
José Willegaignon, Marcelo Sapienza, George Coura-Filho, Alexandre Garcez, Carlos Alves, Marissa Cardona, Ricardo Gutterres, Carlos Buchpiguel   +7 more
doaj   +1 more source

Inferring Stellar Parameters from Iodine-Imprinted Keck/HIRES Spectra with Machine Learning [PDF]

arXiv
The properties of exoplanet host stars are traditionally characterized through a detailed forward-modeling analysis of high-resolution spectra. However, many exoplanet radial velocity surveys employ iodine-cell-calibrated spectrographs, such that the vast majority of spectra obtained include an imprinted forest of iodine absorption lines.
arxiv  

Saturation Spectroscopy of Iodine in Hollow-core Optical Fibre [PDF]

arXiv, 2012
We present high-resolution spectroscopy of Iodine vapour that is loaded and trapped within the core of a hollow-core photonic crystal fibre (HC-PCF). We compare the observed spectroscopic features to those seen in a conventional iodine cell and show that the saturation characteristics differ significantly.
arxiv  

Iodine Radioisotope Diagnostic Scanning With SPECT/CT After Thyroidectomy for Thyroid Cancer: Essential Data or Unnecessary Investigation? [PDF]

, 2013
Anna M. Sawka
openalex   +1 more source

Modeling Iodine Deficiency [PDF]

arXiv
This paper presents a four-unit, four-component mathematical model of iodine metabolism and its impact on thyroid hormone levels in the body. We focus on the relationships between iodine (I-), triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) through the mixer, thyroid, sensor (pituitary gland), and metabolism. Iodine plays a
arxiv  

Mapping the deposition of C137s and I131 in North America following the 2011 Fukushima Daiichi Reactor accident

Atmospheric Environment: X, 2020
The 2011 Fukushima Daiichi Reactor accident generated a large data set of global radionuclide observations. Frequent observations of xenon, caesium and iodine radioisotopes provided an opportunity to examine the performance of inter-continental scale ...
I. Hoffman, A. Malo, P. Mekarski, J. Yi, W. Zhang, N. Ek, P. Bourgouin, G. Wotawa, K. Ungar   +8 more
doaj  

Geochemistry of Halogen and Iodine Radioisotope (¹²⁹I) in Pore Waters from Shallow Gas Hydrate Systems in the Okhotsk Sea and Japan Sea

, 2009
Hitoshi Tomaru, Hirotsugu Minami, Hitoshi SHOJI, Akihiro Hiruta, Ryo Matsumoto, Zunli Lu, U. Fehn, Young Keun Jin, A. Obzhirov   +8 more
openalex   +2 more sources

Polymorphism of monatomic iodine [PDF]

arXiv
We applied synchrotron single-crystal X-ray diffraction in a diamond anvil cell at 48-51 GPa and first-principles theoretical calculations to study the crystal structure of solid atomic iodine at high pressure. We report the synthesis of two phases of atomic iodine at 48-51 GPa via laser heating of I-N2 mixtures.
arxiv  

Study on Iodine and Bromine in Soil-Plant System in Relation to the “Reclamation-Akagare” Disease of Lowland Rice by Means of Radioisotope-Techniques

, 1970
Kiyoshi Tensho, Ko-Ling Yeh
openalex   +2 more sources

Production Cross–Section Calculations of Medical125I Radionuclide Using α, d and γ Induced Reactions

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2015
: Iodine radioisotopes are the most important radioisotopes used in the medicine, especially 125I. 125I is used in radiation therapy as brachytherapy source to treat prostate cancer and brain tumors.
Bayram DEMİR, Veli ÇAPALI, İsmail SARPÜN, Abdullah KAPLAN   +3 more
doaj