CYCLOTRONS2022 - List of Keywords (electronics)

Paper	Title	Other Keywords	Page
MOPO011	Design and Operation of the New Fast Beam Chopper between Tandetron and Cyclotron	controls, electron, power-supply, vacuum	76
	T. Fanselow, J. Bundesmann, A. Denker, A. Dittwald, U. Hiller HZB, Berlin, Germany
	In collaboration with Charite - Universitätsmedizin Berlin, patients with ocular melanomas are treated with protons at Helmholtz Zentrum Berlin. Accompanying research includes beam delivery for Flash irradiation, thus it became necessary to set up a fast and reliable beam chopper. The new beam chopper can deliver much shorter pulses than needed for Flash irradiation, minimum pulse widths down to 70ns at 1kV amplitude can be delivered. A short description of the design and installation process, which occurred in 2020, and the experiences of the first 2 years of operation with the new fast beam chopper system is presented.
	Poster MOPO011 [3.738 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO011
About •	Received ※ 30 December 2022 — Revised ※ 12 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 04 July 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPO012	An Embedded Beam Diagnostic Electronics for 230 MeV Superconducting Cyclotron Radial Probe and Scanning Wires	electron, cyclotron, diagnostics, embedded	80
	T.Y. Jiang, P. Liu, X. Mu, Q.Q. Song, Y. Wang, Z.G. Yin, T.J. Zhang CIAE, Beijing, People’s Republic of China
	For the 230MeV superconducting cyclotron, once again, the differential radial probe has been proven to be crucial for the beam commission procedure. It can provide various information about the particles inside the cyclotron, such as the vertical position, the relative intensity as well as the oscillation frequency and radius, etc. In practice, however, the electronics system suffered from the leaking alternating RF field as well as the static magnetic field. Besides the EM shielding, an absorptive high-frequency filter has been included as the first element of the readout electronics. A high dynamic range readout electronic unit has been included to adapt to the fluctuation of the beam in the hole commissioning phase. The electronics box is designed as a network-attached embedded device so that it can be powered by a POE switch and transmits measurement results via MODBUS protocol. A dedicated digital signal processor and calibration units are also included, together with the ADCs, to facilitate the daily calibration process. The same electronics are used for the beamline wire scan system to determine the position of the beam, with a small improvement at a lower range. The design of this multi-purpose beam diagnostics electronics will be reviewed in this paper, together with several measurement results. zhiguoyin@ciae.ac.cn
	Poster MOPO012 [0.721 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO012
About •	Received ※ 01 January 2023 — Revised ※ 27 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 27 April 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOPO011

Design and Operation of the New Fast Beam Chopper between Tandetron and Cyclotron

controls, electron, power-supply, vacuum

76

T. Fanselow, J. Bundesmann, A. Denker, A. Dittwald, U. Hiller
HZB, Berlin, Germany

In collaboration with Charite - Universitätsmedizin Berlin, patients with ocular melanomas are treated with protons at Helmholtz Zentrum Berlin. Accompanying research includes beam delivery for Flash irradiation, thus it became necessary to set up a fast and reliable beam chopper. The new beam chopper can deliver much shorter pulses than needed for Flash irradiation, minimum pulse widths down to 70ns at 1kV amplitude can be delivered. A short description of the design and installation process, which occurred in 2020, and the experiences of the first 2 years of operation with the new fast beam chopper system is presented.

Poster MOPO011 [3.738 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO011

About •

Received ※ 30 December 2022 — Revised ※ 12 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 04 July 2023

Cite •

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

MOPO012

An Embedded Beam Diagnostic Electronics for 230 MeV Superconducting Cyclotron Radial Probe and Scanning Wires

electron, cyclotron, diagnostics, embedded

80

T.Y. Jiang, P. Liu, X. Mu, Q.Q. Song, Y. Wang, Z.G. Yin, T.J. Zhang
CIAE, Beijing, People’s Republic of China

For the 230MeV superconducting cyclotron, once again, the differential radial probe has been proven to be crucial for the beam commission procedure. It can provide various information about the particles inside the cyclotron, such as the vertical position, the relative intensity as well as the oscillation frequency and radius, etc. In practice, however, the electronics system suffered from the leaking alternating RF field as well as the static magnetic field. Besides the EM shielding, an absorptive high-frequency filter has been included as the first element of the readout electronics. A high dynamic range readout electronic unit has been included to adapt to the fluctuation of the beam in the hole commissioning phase. The electronics box is designed as a network-attached embedded device so that it can be powered by a POE switch and transmits measurement results via MODBUS protocol. A dedicated digital signal processor and calibration units are also included, together with the ADCs, to facilitate the daily calibration process. The same electronics are used for the beamline wire scan system to determine the position of the beam, with a small improvement at a lower range. The design of this multi-purpose beam diagnostics electronics will be reviewed in this paper, together with several measurement results.
zhiguoyin@ciae.ac.cn

Poster MOPO012 [0.721 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO012

About •

Received ※ 01 January 2023 — Revised ※ 27 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 27 April 2023

Cite •

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