Min-Wen Wang, Qing-Zi Xing, Shu-Xin Zheng, et al. Beam position monitors as precise phase pickups for beam energy measurement at the Compact Pulsed Hadron Source. [J]. Nuclear Science and Techniques 30(2):23(2019)
DOI:
Min-Wen Wang, Qing-Zi Xing, Shu-Xin Zheng, et al. Beam position monitors as precise phase pickups for beam energy measurement at the Compact Pulsed Hadron Source. [J]. Nuclear Science and Techniques 30(2):23(2019) DOI: 10.1007/s41365-019-0545-y.
Beam position monitors as precise phase pickups for beam energy measurement at the Compact Pulsed Hadron Source
摘要
Abstract
The 13-MeV proton linac of the Compact Pulsed Hadron Source (CPHS) at Tsinghua University, China, is composed of a 50-keV electron cyclotron resonance proton source, a 3-MeV four-vane-type radio-frequency quadrupole (RFQ) accelerator, and a drift tube linac (DTL). Precise measurement of the beam energies at the exit of the RFQ and the DTL are critical for DTL commissioning. Two button-type beam position monitors (BPMs) installed downstream of the RFQ are used to perform the measurement using a time-of-flight method. The effects of several factors on phase measurement accuracy are analyzed. The phase measurement accuracy of the BPMs at CPHS is better than ±1.03° at 325 MHz after corrections, corresponding to an energy measurement error of ±0.07%. The beam energy measured at the exit of the RFQ is 2.994 ± 0.0022 MeV, which is consistent with the design value.
关键词
Keywords
Beam energyTime of flightBeam position monitorPhase pickup
references
J. Wei, C.Y. Tang, Q.Z. Xing, et al., Compact Pulsed Hadron Source - A University-based Accelerator Platform for Multidisciplinary Neutron and Proton Applications, in proceedings of the PAC2009, p. 1360.
R.J. Leeper, J.R. Lee, L. Kissel, et al., Direct measurement of the energy spectrum of an intense proton beam, Journal of applied physics 60(12):4059-4063 (1986). doi: 10.1063/1.337536http://doi.org/10.1063/1.337536
V.E. Scarpine, Y.C. Tan, P.R. Karns, et al., Instrumentation Developments and Beam Studies for the Fermilab Proton Improvement Plan LINAC Upgrade and New RFQ Front-End, in Proceedings of HB2012, p. 315.
B. Dehning, N. Hilleret, J. Prochnow, et al., Status of the LEP2 Spectrometer Project, in proceedings of EPAC2000, p. 436.
Z. Kormany., A new method and apparatus for measuring the mean energy of cyclotron beams, Nucl. Instrum. Meth. A 337(2-3): 258-264 (1994). doi: 10.1016/0168-9002(94)91093-6http://doi.org/10.1016/0168-9002(94)91093-6
C. Piel, K. Dunkel, M. Pekeler, et al., Beam operation of the SARAF light ion injector, in proceedings of the PAC2007, p. 1410.
P. Ausset, M.B. Abdillah, F. Fournier, et al., Operation of the Beam Position Monitor for the Spiral 2 Linac on the Test Bench of the RFQ, in proceedings of IBIC2016, p. 643.
M.W. Wang, S.X. Zheng, X.L. Guan, et al., BPM Design and Test Result of Xi'an Proton Application Facility, Atomic Energy Science and Technology, 2018, 52(1): 161-167.
J.G. Hwang, T.K. Yang, P. Forck, High precision capacitive beam phase probe for KHIMA project, Nucl. Instrum. Meth. A 837: 34-39 (2016). doi: 10.1016/j.nima.2016.08.042http://doi.org/10.1016/j.nima.2016.08.042
J.D. Gilpatrick, T.R. Hodapp, K.F. Johnson, et al., LEDA and APT Beam Diagnostics Instrumentation, in proceedings of PAC1997, p. 2232.
C. Jamet, W. Le Coz, C. Doutressoulles, et al.,Phase and amplitude measurement for the SPIRAL2 accelerator, in proceedings of DIPAC2009, p. 327.
Y.F. Sui, J. Cao, J. He, et al., Beam Commissioning of C-ADS Linac Instrumentation, in proceedings of HB2016, p. 529.
Keysight-Technologies, E8663D PSG RF Analog Signal Generator - Data Sheet, http://literature.cdn.keysight.com/litweb/pdf/5990-4136EN.pdf?id=1754913http://literature.cdn.keysight.com/litweb/pdf/5990-4136EN.pdf?id=1754913.Accessed 17 May 2018
CST Particle Studio, https://www.cst.com/solutions/article/wake-field-simulation-of-a-beam-position-monitorhttps://www.cst.com/solutions/article/wake-field-simulation-of-a-beam-position-monitor. Accessed 17 May 2018
S.S. Kurennoy, et al., Beam phase detectors for spallation neutron source linac, in proceedings of EPAC200, p. 1765.
M. Cohen-Solal et al.,Design, test, and calibration of an electrostatic beam position monitor, Phys. Rev. ST Accel. Beams 13: 032801 (2010). doi: 10.1103/PhysRevSTAB.13.032801http://doi.org/10.1103/PhysRevSTAB.13.032801
Instrumentation Technologies, http://www.i-tech.si/accelerators-instrumentation/libera-single-pass-h/benefits_3http://www.i-tech.si/accelerators-instrumentation/libera-single-pass-h/benefits_3. Accessed 17 May 2018
TraceWIN code, http://irfu.cea.fr/en/Phocea/Page/index.php?id=780http://irfu.cea.fr/en/Phocea/Page/index.php?id=780. Accessed 17 May 2018
A real-time online data acquisition system for Dragon-I linear induction accelerator
Research into the sampling methods of digital beam position measurement
A new TOF system for target recoil-ion momentum spectroscopy at IMP
Performance of two different modules of long-strip multi-gap resistive plate chamber
Design and simulation of time-of-flight neutron reflectometer
Related Author
No data
Related Institution
State Key Laboratory of Particle Detection and Electronics, and Department of Modern Physics, University of Science and Technology of China
State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China
State Key Laboratory of Particle Detection & Electronics
Anhui Key Laboratory of Physical Electronics, Department of Modern Physics, University of Science and Technology of China
Department of Engineering Physics, Tsinghua University;China Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education