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with the strong and electromagnetic decaysMeng, L.*; Wang, G.-J.*; Wang, B.*; Zhu, S.-L.*
Physical Review D, 104(5), p.L051502_1 - L051502_8, 2021/09
Times Cited Count：52 Percentile：98.27(Astronomy & Astrophysics)We investigate the kinetically allowed strong and electromagnetic decays of the recently observed 
. Our results show that the decay width of 
is the largest one, which is just the experimental observation channel. Our theoretical total strong and radiative widths are in favor of the 
as a 
dominated bound state. Our calculation is cutoff-independent and without prior isospin assignment. The absolute partial widths and ratios of the different decay channels can be used to test the structure of state when the updated experimental results are available.
Inaba, Yoshitomo; Isaka, Kazuyoshi; Shibata, Taiju
JAEA-Data/Code 2017-002, 74 Pages, 2017/03
JAEA-Data-Code-2017-002.pdf:2.36MB
In order to ensure the thermal integrity of fuel in High Temperature Gas-cooled Reactors (HTGRs), it is necessary that the maximum fuel temperature in normal operation is to be lower than a thermal design target. In the core thermal-hydraulic design of block-type HTGRs, the maximum fuel temperature should be evaluated considering data such as core geometry and specifications, power density and neutron fluence distributions, and core coolant flow distribution. The fuel temperature calculation code used in the design stage of the High Temperature engineering Test Reactor (HTTR) presupposes to run on UNIX systems, and its operation and execution procedure are complicated and are not user-friendly. Therefore, a new fuel temperature calculation code, named FTCC, which has a user-friendly system such as a simple and easy operation and execution procedure, was developed. This report describes the calculation objects and models, the basic equations, the strong points (improvement points from the HTTR design code), the code structure, the using method of FTCC, and the result of a validation calculation with FTCC. The calculation result obtained by FTCC provides good agreement with that of the HTTR design code, and then FTCC will be used as one of the design codes for high temperature gas-cooled reactors. In addition, the effect of hot spot factors and fuel cooling forms on reducing the maximum fuel temperature is investigated with FTCC. As a result, it was found that the effect of center hole cooling for hollow fuel compacts and gapless cooling with monolithic type fuel rods on reducing the temperature is very high.
Sonoda, Shinya*; Nabetani, Akira*; Kimura, Hiroyuki*; Kabuki, Shigeto*; Takada, Atsushi*; Kubo, Hidetoshi*; Kimura, Shotaro*; Sawano, Tatsuya*; Tanimori, Toru*; Matsuoka, Yoshihiro*; et al.
no journal, ,
We have developed the ETCC for new medical imaging device and succeeded in imaging the some medical imaging reagents. Thus, this detector is thought promising for a new medical imaging. The F-18 point-like and rod-like phantoms are measured with new ETCC, and the imaging performance was estimated. In addition, measurement of Tc-95m which is produced by Japan Atomic Energy Agency was performed.
Sonoda, Shinya*; Nabeya, Akira*; Kimura, Hiroyuki*; Kabuki, Shigeto*; Takada, Atsushi*; Kubo, Hidetoshi*; Komura, Shotaro*; Tanimori, Toru*; Matsuoka, Yoshihiro*; Mizumura, Yoshitaka*; et al.
no journal, ,
SPECT and PET are widely used for medical imaging. However, radio isotopes available for SPECT and PET are limited. Under these circumstances, it is expected the appearance of the new 
imaging detector which can measure more various kinds of -ray sources in order to develop new biomarkers using new radio isotopes. We set out to contribute to medical imaging technology by developing Electron-Tracking Compton Camera (ETCC) which can measure the various radioactive medicine.
