Real-Time Measurement of Ion Energies for Heavy Ions

2016 ◽  
Vol 698 ◽  
pp. 157-162
Author(s):  
Akihito Yokoyama ◽  
Wataru Kada ◽  
Takahiro Satoh ◽  
Masashi Koka ◽  
Yuya Yokota ◽  
...  

A real-time position detection system is developed for measuring heavy ions with low fluence and energy of several hundred MeV, which are generated from an azimuthally varying field (AVF) cyclotron accelerator. We investigate the photoluminescence of α-Al2O3 single crystals implanted with Eu (Al2O3:Eu), which is used in the detection system. The Al2O3:Eu scintillators with a fluence of 3.0 × 1016 cm−2 are annealed at 500–900°C. The annealing conditions required for the Al2O3:Eu scintillators to obtain the maximum luminescence are 0.5 h at 600°C. The scintillator is placed on the AVF cyclotron target stage under atmospheric pressure and is irradiated by 260-MeV Ne. An inverted confocal microscope with a ×10 objective lens is positioned behind the Al2O3:Eu scintillator, and the luminescent images during ion irradiation are obtained by a position-sensitive camera unit with a 512 × 512 pixel electron multiplying charge-coupled device. The images indicate that our online measurement system has a sufficient spatial resolution, since the luminous diameter induced by irradiation with 190 ions /s is almost the same as that of the microbeam.

2020 ◽  
Vol 48 (9) ◽  
pp. 3203-3210
Author(s):  
Guan Xiao Cun ◽  
Shuai Wang ◽  
Denghua Guo ◽  
Shaohua Guan ◽  
Baolong Liu ◽  
...  

2012 ◽  
Vol 101 (14) ◽  
pp. 142601 ◽  
Author(s):  
P. Thoma ◽  
A. Scheuring ◽  
M. Hofherr ◽  
S. Wünsch ◽  
K. Il'in ◽  
...  

2014 ◽  
Vol 875-877 ◽  
pp. 2132-2136
Author(s):  
Yu Nong Zhang ◽  
Matthew R. Stanco ◽  
Z.C. Li

An ultra-high-speed and high-accuracy charge-coupled device (CCD) laser displacement sensor is used to track and measure the ultrasonic vibration in real time. A series of Matlab programs are developed to filter noise from original data. The ultrasonic vibration frequency and period are evaluated and the ultrasonic amplitude is measured within accuracy ±0.1 μm. Effect of the ultrasonic power on the ultrasonic amplitude is also studied.


2021 ◽  
Author(s):  
Goodness Oluchi Anyanwu ◽  
Cosmas Ifeanyi Nwakanma ◽  
Jae-Min Lee ◽  
Dong-Seong Kim

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hongmei Li ◽  
Yiping Cao ◽  
Yingying Wan ◽  
Chengmeng Li ◽  
Cai Xu ◽  
...  

AbstractBy using the time-division multiplexing characteristics of the projector and the integral exposure characteristics of the charge coupled device (CCD) camera, a super-grayscale and real-time computer-generated Moiré profilometry based on video grating projection is proposed. The traditional digital static grating is of 256-grayscale at most. If an expected super-grayscale grating with a maximum grayscale of 766 is designed and divided into three 256-grayscale fringe patterns with balanced grayscale as far as possible, they can be synthesized into a repeated playing video grating instead of the traditional static grating. When the video grating is projected onto the measured object, as long as the exposure time is set to three times the refresh cycle of the video grating, the super-grayscale deformed patterns in the 766-grayscale can be captured with a 10-bit CCD camera, so that the deformed patterns are realistic. The digital error in computer-generated Moiré profilometry is effectively reduced. In addition, this method can expand the linear range of the deformed pattern by 20% in computer Moiré profilometry. Therefore, the proposed method has the perspectives of high accuracy and real-time measurement. Theoretical analysis and experimental results demonstrate the validity and capability of the proposed method.


2012 ◽  
Vol 24 (1) ◽  
pp. 244-253 ◽  
Author(s):  
Yusuke Kuromiya ◽  
◽  
Satoshi Ashizawa ◽  
Daiki Ando ◽  
Takeo Oomichi

The ceiling dismantling robot that we developed cuts ceiling boards with a high-pressure water-jet cutter. The cutting operation of the ceiling board is done below the Light-Gauge Steel (LGS) attached to ceiling boards with screws. A magnetic sensor that detects LGS was developed for this robot system. The robot can dismantle ceiling boards because of a successful mock-up experiment. This paper describes the method of screw detection that targets saving water and reducing dust. There are several problems, for example, increased noise and detecting objects as early as possible. The validity of the proposed method was verified by detecting the screws using sensor in an experimental setup.


2018 ◽  
Vol 27 (3) ◽  
pp. 424-433 ◽  
Author(s):  
Faruk Azam Shaik ◽  
Grant Alexander Cathcart ◽  
Satoshi Ihida ◽  
Yoshiho Ikeuchi ◽  
Agnes Tixier-Mita ◽  
...  

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