Results 41 to 50 of about 7,008,346 (299)

Development of FPGA-Based Data Acquisition System for Metallic Magnetic Calorimeter

Journal of Isotopes
Metallic magnetic calorimeters are a class of low-temperature particle detectors based on calorimetry，utilizing metallic paramagnetic temperature sensors to convert the temperature rise of an absorber upon the absorption of incident particle energy into ...
Yang LI, Lijun XU, Yuntao LIU, Baoji ZHU, Yuhe ZHANG, Qi JIN, Zongzheng ZHOU, Yuanqiao LI, Min LIN, Lijie HAO, Hongliang WANG, Shichun JIN   +11 more
doaj   +1 more source

Simulation Research on Very-Low-Level γ Ray Radiation Field Scattering Radiation

Journal of Isotopes
In order to build a very-low-level γ ray radiation field and its magnitude transfer system，the scattering contribution caused by different mechanical device structure is researched based on the experimental conditions of the Jinping underground ...
Xuan GENG, Zhongbin TENG, Zhongbin HANG, Qiao LI, Minghan JIA, Kaixuan HU, Mingzhe SONG, Yuntao LIU   +7 more
doaj   +1 more source

The Performance of Quartz Dosimeter with Range to MGy

Journal of Isotopes, 2022
To study the new type of dosimeter with a dose up to the ultra-high dose range of MGy, the electron spin resonance (ESR) method is used to measure the signal intensity of the sample irradiated by gamma rays or electron beams.
CHEN Yizhen;CUI Ying;ZHANG Weidong;LUO Rui;LIN Min;XIA Wen;CHEN Kesheng
doaj  

Study on Radioactive Source Localization Method in Shielded Environment Based on MCMC

Yuanzineng kexue jishu, 2023
Searching of lost radioactive sources rapidly and accurately is the core technology for radioactive source locating by aerial measurement. In order to solve the problem of radioactive source location in shielded condition, an adaptive radioactive source ...
XU Hang1;AI Xianyun1;LIU Yina2;GUAN Xian1;XIE Jianming1;WANG Ying1,*
doaj   +1 more source

Simulation of internal electric field of particle source water absorbed dose absolute measurement device

He jishu
BackgroundThe physical quantity concerned in the clinical application of 125I particle source brachytherapy is the 1 cm water absorbed dose rate D˙w,1 cm. However, there is no corresponding standard for this physical quantity in China.
HANG Zhongbin, LIU Yuntao, SONG Mingzhe, WEI Kexin, WANG Hongyu, LIU Chuanfeng, TENG Zhongbin, GENG Xuan   +7 more
doaj   +1 more source

Energy calibration at high-energy photon colliders [PDF]

Journal of Instrumentation, 2014
8 pages, 3 figures, Latex. Talk at Int. conf. on instrumentation for colliding beam physics (INSTR 2014), Feb. 24 - March 1, 2014, BINP, Novosibirsk.
openaire   +2 more sources

Research And Experimental Verification of Absolute Measurement Facility Parameters for Radionuclide Neutron Source Emission Rate

Journal of Isotopes
The manganese bath method is a commonly used method for determining neutron source emission rate.The Monte Carlo method (MCNP) was used to calculate the influence of main parameters such as bath radius，MnSO4 solution density，and measurement chamber ...
Haixian ZHANG, Yina LIU, Zhiqiang WANG, Chunjuan LI, Mingzhe SONG, Hailong LUO   +5 more
doaj   +1 more source

SPI energy calibration

, 2005
3 pages, 7 ...
Lonjou, V., Knodlseder, J., Roques, J. P., Skinner, G. K., von Ballmoos, P., Jean, P., Paul, P., Weidenspointner, G., Wunderer, C., Schanne, S.   +9 more
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Research on DIS Dosimeter Based on TCAD Simulation Method

Journal of Isotopes
Personal dose monitoring and environmental radiation monitoring are commonly conducted in places such as nuclear power plant reactor operations and nuclear medical facilities，often using thermoluminescent dosimeters (TLD).
Jiaqi XU, Feifei WANG, Fei GAO, Yuyang DING, Jiahang CHEN, Xinle TAN   +5 more
doaj   +1 more source