نتایج جستجو برای: polymer gel dosimetry

تعداد نتایج: 201784  

Journal: :Journal of Physics: Conference Series 2015

Journal: :Journal of Physics: Conference Series 2004

Journal: :Journal of Physics: Conference Series 2010

Journal: :Journal of Physics: Conference Series 2004

Journal: :Journal of Physics: Conference Series 2009

Journal: :Journal of Physics: Conference Series 2017

2013
Srinivasa R. Pullela Qingsheng Wang Zhengdong Cheng

Self-oscillating polymer gel has become a distinguished class of smart soft materials. Here we fabricated and demonstrated a self-oscillating structural gel network with the incorporation of the Belousov-Zhabotinsky (BZ) reaction. The structural polymer gel oscillates at a macroscopic level with remarkably faster kinetics compared to a normal gel of similar chemical compositions. The structural...

Journal: :Physics in medicine and biology 1999
S J Hepworth M O Leach S J Doran

Oxygen contamination of a polyacrylamide gel (PAG) dosimeter can have a significant detrimental effect upon the performance characteristics of the gel as a dosimeter. Oxygen contamination can occur during preparation, but can also arise from the diffusion of atmospheric oxygen through vessel walls. Even 'trace' amounts of oxygen present in any gaseous space (usually nitrogen filled) between the...

B. Azadbakht, k. Hadad, M.H. Zahmatkesh, S. Bagheri,

Background: In this work investigation of the normoxic PAGAT polymer gel dosimeter such as sensitivity, the R2-dose response with post time and the percentage depth dose (PDD) of PAGAT polymer gel dosimeter have been undertaken. Materials and Methods: Using MRI, the formulation to give the maximum change in the transverse relaxation rate R2 was determined to be 4.5% N,N'-methylenbis- ...

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