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)
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
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.
Beam energyTime of flightBeam position monitorPhase pickup
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