Abstract In cyclotron-based proton therapy facilities, an energy selection system is typically used to lower the beam from fixed value provided by accelerator (250/230 MeV) one needed for treatment (230-70 MeV). Such a has drawback of increase emittance and introducing energy-dependent current at patient location, resulting in dependent intensity ratios about 10 3 between high low energies. Thi...

The irradiation of a thorium target by light charged particles (protons and deuterons) leads to the production of several isotopes of medical interest. Direct nuclear reaction allows the production of Protactinium-230 which decays to Uranium-230 the mother nucleus of Thorium-226, a promising isotope for alpha radionuclide therapy. The fission of Thorium-232 produces fragments of interest like M...

Copyright ©2015 Korean Geriatric Society This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/). ▸Received: March 16, 2015 ▸Revised: May 20, 2015 ▸Accepted: May 26, 2015 Address for correspondence: Ji Eun Song, MD Division of Cardiology, Department of Internal Medicine, Presbyterian M...

The crystal structure of para-methyl-l-phenylalanine at 230 K resembles that of the para-fluorinated analogue from the literature but is commensurately modulated with seven molecules in the asymmetric unit (Z' = 7). At 100 K, the superstructure loses its modulation, leading to a unit cell with Z' = 1, with clear disorder in the phenyl ring orientations. The methyl-substituent in para-methyl-l-p...

1 Department of Biophysics and Biochemistry, Graduate school of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan 2 RIKEN Genomic Sciences Center, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan 3 Department of Supramolecular Biology, International Graduate School of Arts and Sciences, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045...

To solve the problem that curing mechanism evolution of phenolic resin catalyzed by Ba(OH) 2 remained unclear, p-p methylene index, o-p o-o hydroxymethyl and ether index were introduced to quantitatively investigate chemical structure in temperature range 90–230°C. The structures investigated variable FT-IR. gas products released with increase characterized Thermogravimetry-Mass Spectrometry. f...