Results 41 to 50 of about 1,577,460 (391)

Uncertainty Analysis of Activity Concentration Measurement of Tritium Gas Standard Source

Journal of Isotopes, 2023
The value of activity concentration of tritium standard source is very important for the monitor and calibration of tritium. The length compensation method is applied for measuring activity of tritium.
LUO Rui;LIU Yuntao;LIN Min;XU Lijun;MAO Naqing;LI Ming
doaj   +1 more source

Simulating Induced Current Signal of Boron-coating Proportional Counter and Study of Pulse Width Analysis

Yuanzineng kexue jishu, 2022
The induced current pulse width of the boroncoating proportional counter is able to cause pulse piling up and degrade the counting accuracy. Meanwhile, the pulse broadening of the induced current pulse decreases the magnitude of the induced current ...
ZHU Chaoyang;LI Litao;XING Guilai;WANG Zhentao
doaj  

X-ray polarimetry with an active-matrix pixel proportional counter

, 2003
We report the first results from an X-ray polarimeter with a micropattern gas proportional counter using an amorphous silicon active matrix readout.
Black, J. K., Deines-Jones, P., Ready, S. E., Street, R. A.   +3 more
core   +1 more source

Calibration of the Rossi X-Ray Timing Explorer Proportional Counter Array [PDF]

, 2005
We present the calibration and background model for the Proportional Counter Array on board the Rossi X-Ray Timing Explorer. The energy calibration is systematics-limited below 10 keV, with deviations from a power-law fit to the Crab Nebula plus pulsar ...
K. Jahoda, C. Markwardt, Y. Radeva, A. Rots, M. Stark, J. Swank, T. Strohmayer, Will Zhang   +7 more
semanticscholar   +1 more source

NEEDLE DETECTOR OF X-RAY AND GAMMA RADIATION

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017
The article presents the developed structure of the novel needle proportional gas detector (NPC – Needle Proportional Counter) used for the detection of X-rays and gamma rays.
Grzegorz Domański, Roman Szabatin, Piotr Brzeski, Bogumił Konarzewski   +3 more
doaj   +1 more source

Proportional Counter in X-ray Fluorescence

Aksaray University Journal of Science and Engineering, 2021
The purpose of this work is to investigate and quantify x-ray fluorescence, its production and its spectroscopy. Characteristic x-ray with different energies was obtained from six various elements using Am-241 source with 59.5 keV. It was found that x-ray energy and intensity increase with increasing atomic number of material.
openaire   +5 more sources

Crosstalk interference and correction methods for low background gas-flow proportional counter

Fushe yanjiu yu fushe gongyi xuebao
The crosstalk phenomenon and its influence in the determination of gross α and β radioactivity when using a low background gas-flow proportional counter as a measuring instrument was examined in this paper. The crosstalk ratio between α and β channel was
LI Meili, QIN Lianjing, JIANG Lan, GUO Xiaomin, LIANG Guiyuan   +4 more
doaj   +1 more source

COSICAF, a fission chamber simulation tool for academic purposes [PDF]

EPJ Web of Conferences, 2020
Since a few years, simulation codes were built at CEA Cadarache to predict the signal of ionisation chambers and taylor detectors for specific applications.
de Izarra G., Lamotte M., Bréaud S., Pépino A., Filliatre P., Jammes C.   +5 more
doaj   +1 more source

Systematic measurement of lineal energy distributions for proton, He and Si ion beams over a wide energy range using a wall-less tissue equivalent proportional counter.

Journal of Radiation Research, 2012
The frequency distributions of the lineal energy, y, of 160 MeV proton, 150 MeV/u helium, and 490 MeV/u silicon ion beams were measured using a wall-less tissue equivalent proportional counter (TEPC) with a site size of 0.72 µm.
S. Tsuda, Tatsuhiko Sato, F. Takahashi, D. Satoh, S. Sasaki, Y. Namito, H. Iwase, S. Ban, M. Takada   +8 more
semanticscholar   +1 more source

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source