Influence of injection beam emittance on beam transmission efficiency in a cyclotron

2014 ◽  
Vol 85 (2) ◽  
pp. 02A725
Author(s):  
Satoshi Kurashima ◽  
Hirotsugu Kashiwagi ◽  
Nobumasa Miyawaki ◽  
Ken-Ichi Yoshida ◽  
Susumu Okumura
Keyword(s):  
Transmission Efficiency ◽  
Beam Emittance ◽  
Beam Transmission

Beam transmission efficiency of the HIRFL-SSC

2013 ◽  
Vol 37 (3) ◽  
pp. 037001
Author(s):  
Feng Ye ◽  
Shang-Yun Yang
Keyword(s):  
Transmission Efficiency ◽  
Beam Transmission

Effect of preacceleration on intense ion‐beam transmission efficiency

1978 ◽  
Vol 33 (4) ◽  
pp. 278-279 ◽  
Author(s):  
J. H. Whealton ◽  
C. C. Tsai ◽  
W. K. Dagenhart ◽  
W. L. Gardner ◽  
H. H. Haselton ◽  
...  
Keyword(s):  
Ion Beam ◽  
Transmission Efficiency ◽  
Beam Transmission

Beam dynamics pre-design with KONUS principle for the DTL of SPPC p-Linac

2018 ◽  
Vol 33 (11) ◽  
pp. 1850062
Author(s):  
Jing Liu ◽  
Haipeng Li ◽  
Yuanrong Lu ◽  
Jiancang Su ◽  
Xiaolong Liu ◽  
...  
Keyword(s):  
Precise Measurement ◽  
High Energy ◽  
New Physics ◽  
Transmission Efficiency ◽  
Higgs Bosons ◽  
Beam Dynamics ◽  
Proton Proton ◽  
Transmission Quality ◽  
Beam Transmission

As the Higgs bosons were observed on the LHC in 2012, a two-stage particle collider program named CEPC-SPPC is proposed for precise measurement of Higgs properties and exploring the new physics models. In order to deliver a 2.1-TeV proton beam into the Super Proton–Proton Collider (SPPC), the injector chain will use a 1.2-GeV proton linac (p-Linac) and three synchrotrons of p-RCS, MSS and SS. This paper focuses on the preliminary conceptual design of the DTL within the p-Linac and mainly concerns about the beam dynamics studies. Taking advantages of the KONUS principle and LORASR code, a 325 MHz, 50.65 MeV DTL design which is composed of three tanks in 15.6 m will be presented. The whole DTL contains 129 gaps for beam acceleration, one quadruple doublet which is behind the buncher and eight quadruple triplets of which three are located after each tank, respectively. The aims of this pre-study are to optimize the acceleration electric field distribution together with the focusing magnetic field parameters, enhance the beam transmission quality of beam envelopes, particle distribution and energy spread, then improve the DTL performance in terms of transmission efficiency and so on. The results of the analyses show that the DTL pre-design achieves 16.8 times high energy gain and meets all the p-Linac requirements well.

Improving the efficiency of oilfield electric power distribution

2019 ◽  
pp. 79-87
Author(s):  
Yu. F. Yu. F. Romaniuk ◽  
О. V. Solomchak ◽  
М. V. Hlozhyk
Keyword(s):  
Power Distribution ◽  
Reactive Power ◽  
Power Transmission ◽  
Transmission Efficiency ◽  
Active Power ◽  
Oil Field ◽  
Total Power ◽  
Simultaneous Increase ◽  
Active Load ◽  
Step Down

The issues of increasing the efficiency of electricity transmission to consumers with different nature of their load are considered. The dependence of the efficiency of the electric network of the oil field, consisting of a power line and a step-down transformer, on the total load power at various ratios between the active and reactive components of the power is analyzed, and the conditions under which the maximum transmission efficiency can be ensured are determined. It is shown by examples that the power transmission efficiency depends not only on the active load, but also largely on its reactive load. In the presence of a constant reactive load and an increase in active load, the total power increases and the power transmission efficiency decreases. In the low-load mode, the schedule for changing the power transmission efficiency approaches a parabolic form, since the influence of the active load on the amount of active power loss decreases, and their value will mainly depend on reactive load, which remains unchanged. The efficiency reaches its maximum value provided that the active and reactive components of the power are equal. In the case of a different ratio between them, the efficiency decreases. With a simultaneous increase in active and reactive loads and a constant value of the power factor, the power transmission efficiency is significantly reduced due to an increase in losses. With a constant active load and an increase in reactive load, efficiency of power transmission decreases, since with an increase in reactive load, losses of active power increase, while the active power remains unchanged. The second condition, under which the line efficiency will be maximum, is full compensation of reactive power.  Therefore, in order to increase the efficiency of power transmission, it is necessary to compensate for the reactive load, which can reduce the loss of electricity and the cost of its payment and improve the quality of electricity. Other methods are also proposed to increase the efficiency of power transmission by regulating the voltage level in the power center, reducing the equivalent resistance of the line wires, optimizing the loading of the transformers of the step-down substations and ensuring the economic modes of their operation.

Improvement of transmission efficiency in microwave photonic links using EDFA

2020 ◽  
Vol 13 (5) ◽  
pp. 995-1000
Author(s):  
XIAO Yong-chuan ◽  
◽  
WANG chao ◽  
ZHANG hao ◽  
ZHANG Ya-biao ◽  
...  
Keyword(s):  
Transmission Efficiency ◽  
Microwave Photonic ◽  
Photonic Links
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