نتایج جستجو برای: heavy ion
تعداد نتایج: 317162 فیلتر نتایج به سال:
We present a selection of recent results by the CMS collaboration on heavy- ion physics.
For the heavy ion program at CERN’s Large Hadron Collider, lead-lead collisions with a design luminosity of 10 cms are foreseen. This will be achieved after an upgrade of the ion injector chain where the Low Energy Antiproton Ring (LEAR) is currently converted into a Low Energy Ion Ring (LEIR). Avalanche-like heavy-ion induced molecular desorption, first observed at LEAR and systematically stud...
We describe in detail how the different components of a multiphase transport (AMPT) model that uses the heavy ion jet interaction generator (HIJING) for generating the initial conditions, Zhang’s parton cascade (ZPC) for modeling partonic scatterings, the Lund string fragmentation model or a quark coalescence model for hadronization, and a relativistic transport (ART) model for treating hadroni...
Increased oxidative stress plays an important role in heavy ion radiation-induced cell death. The mechanism involved in the generation of elevated reactive oxygen species (ROS) is not fully illustrated. Here we show that NADPH oxidase activation is closely related to heavy ion radiation-induced cell death via excessive ROS generation. Cell death and cellular ROS can be greatly reduced in irradi...
The HIMAC (Heavy Ion Medical Accelerator in Chiba) facility is the first heavy-ion synchrotron complex dedicated to medical use in a hospital environment. As a part of ‘the Comprehensive 10-year Strategy for Cancer Control’ begun by the Japanese Government in 1984, the project for construction of the HIMAC was carried out at National Institute of Radiological sciences (NIRS), Science and Techno...
Superb biological effectiveness and dose conformity represent a rationale for heavy-ion therapy, which has thus far achieved good cancer controllability while sparing critical normal organs. Immediately after irradiation, heavy ions produce dense ionization along their trajectories, cause irreparable clustered DNA damage, and alter cellular ultrastructure. These ions, as a consequence, inactiva...
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