MEDSI2020 - List of Keywords (injection)

Paper	Title	Other Keywords	Page
TUPA02	Design of Remote Helium Mass Spectrometer Leak Detector	vacuum, detector, controls, gun	123
	H.Y. He, H. Song IHEP, Beijing, People’s Republic of China J.M. Liu DNSC, Dongguan, People’s Republic of China R.H. Liu, G.Y. Wang IHEP CSNS, Guangdong Province, People’s Republic of China
	Leak detection is the key to get a good vacuum system. For the dangerous areas, or facility with complicit structure required to be detected online, it is a hard mask to seek for the suspected leaks one after another. After studying the basic principle of helium mass leak detection, design a remote leak detector based on the PLC, as well as multi monitoring cameras, which can achieve successful injection and sniffer probe leak detection in the range of 270 degree. Compared with the manual operation, this device aims at accurately and reliably detecting leak rate, which can greatly provide technique support of online leak detection. And it can bring the value of reducing the labor intensity and ensuring personal safety.
	Poster TUPA02 [0.195 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-TUPA02
About •	paper received ※ 05 July 2021 paper accepted ※ 14 October 2021 issue date ※ 08 November 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPA09	A New Three-Signal 2D-Beam-Position-Monitor Based on a Segmented Ionization Chamber	synchrotron, factory, high-voltage, instrumentation	243
	M. Goerlitz, W.A. Caliebe DESY, Hamburg, Germany
	At the DESY-beamline P64* a new three-signal beam position monitor (BPM) was constructed and tested in 2020. The BPM is based on the working-principle of an Ionization Chamber with splitted electrodes and a 120°-symmetry. The chamber is filled with an inert gas, which is ionized in presence of a beam. The gas can be changed, and the absorption can be adjusted in dependency of the X-ray-energy. The 2D-position is calculated out of three signals by a multiple-linear regression, where the position can be obtained by using a coordinate-transformation, similar to the Park-transformation, which is well-known in the field of drive control. Calibration factors have been evaluated in detail by using linear optimization algorithms including weighted residuals. The calculation is an inverse problem, which can be solved either by Simplex-algorithm or by Moore-Penrose-Pseudoinverse. The different results have been compared. Moreover, in order to validate the feasibility, calibration factors have been compared in regard to different beam sizes. Non-linearities are shown for a grid of 3x3 mm. *W.A. Caliebe, V. Murzin, A. Kalinko, and M. Görlitz, AIP Conf. Proc. 2054, 060031 (2019).
	Poster WEPA09 [7.778 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEPA09
About •	paper received ※ 16 July 2021 paper accepted ※ 05 November 2021 issue date ※ 10 November 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPA02

Design of Remote Helium Mass Spectrometer Leak Detector

vacuum, detector, controls, gun

123

H.Y. He, H. Song
IHEP, Beijing, People’s Republic of China
J.M. Liu
DNSC, Dongguan, People’s Republic of China
R.H. Liu, G.Y. Wang
IHEP CSNS, Guangdong Province, People’s Republic of China

Leak detection is the key to get a good vacuum system. For the dangerous areas, or facility with complicit structure required to be detected online, it is a hard mask to seek for the suspected leaks one after another. After studying the basic principle of helium mass leak detection, design a remote leak detector based on the PLC, as well as multi monitoring cameras, which can achieve successful injection and sniffer probe leak detection in the range of 270 degree. Compared with the manual operation, this device aims at accurately and reliably detecting leak rate, which can greatly provide technique support of online leak detection. And it can bring the value of reducing the labor intensity and ensuring personal safety.

Poster TUPA02 [0.195 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-TUPA02

About •

paper received ※ 05 July 2021 paper accepted ※ 14 October 2021 issue date ※ 08 November 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPA09

A New Three-Signal 2D-Beam-Position-Monitor Based on a Segmented Ionization Chamber

synchrotron, factory, high-voltage, instrumentation

243

M. Goerlitz, W.A. Caliebe
DESY, Hamburg, Germany

At the DESY-beamline P64* a new three-signal beam position monitor (BPM) was constructed and tested in 2020. The BPM is based on the working-principle of an Ionization Chamber with splitted electrodes and a 120°-symmetry. The chamber is filled with an inert gas, which is ionized in presence of a beam. The gas can be changed, and the absorption can be adjusted in dependency of the X-ray-energy. The 2D-position is calculated out of three signals by a multiple-linear regression, where the position can be obtained by using a coordinate-transformation, similar to the Park-transformation, which is well-known in the field of drive control. Calibration factors have been evaluated in detail by using linear optimization algorithms including weighted residuals. The calculation is an inverse problem, which can be solved either by Simplex-algorithm or by Moore-Penrose-Pseudoinverse. The different results have been compared. Moreover, in order to validate the feasibility, calibration factors have been compared in regard to different beam sizes. Non-linearities are shown for a grid of 3x3 mm.
*W.A. Caliebe, V. Murzin, A. Kalinko, and M. Görlitz, AIP Conf. Proc. 2054, 060031 (2019).

Poster WEPA09 [7.778 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2020-WEPA09

About •

paper received ※ 16 July 2021 paper accepted ※ 05 November 2021 issue date ※ 10 November 2021

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)