Calibration for Beam Energy Position Monitor System for Riken Superconducting Acceleration Cavity

Watanabe, Tamaki; Fujimaki, Masaki; Fukunishi, Nobuhisa; Hanamura, Kotoku; Imao, Hiroshi; Kamigaito, Osamu; Kamoshida, Atsushi; Kawachi, Toshihiko; Koyama, Ryo; Miura, Akihiko; Miyao, Tomoaki; Sakamoto, Naruhiko; Toyama, Takeshi; Watanabe, Yutaka; Yamada, Kazunari

doi:10.18429/JACoW-IBIC2019-WEPP007

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RIS citation export for WEPP007: Calibration for Beam Energy Position Monitor System for Riken Superconducting Acceleration Cavity

TY  - CONF
AU  - Watanabe, T.
AU  - Fujimaki, M.
AU  - Fukunishi, N.
AU  - Hanamura, K.
AU  - Imao, H.
AU  - Kamigaito, O.
AU  - Kamoshida, A.
AU  - Kawachi, T.
AU  - Koyama, R.
AU  - Miura, A.
AU  - Miyao, T.
AU  - Sakamoto, N.
AU  - Toyama, T.
AU  - Watanabe, Y.
AU  - Yamada, K.
ED  - Schaa, Volker RW
ED  - Jansson, Andreas
ED  - Shea, Thomas
ED  - Olander, Johan
TI  - Calibration for Beam Energy Position Monitor System for Riken Superconducting Acceleration Cavity
J2  - Proc. of IBIC2019, Malmö, Sweden, 08-12 September 2019
CY  - Malmö, Sweden
T2  - International Beam Instrumentation Conferenc
T3  - 8
LA  - english
AB  - Upgrades for the RIKEN Heavy-ion Linac (RILAC) involving a new Superconducting Linac (SRILAC) are currently underway to promote super-heavy element searches and Radio Isotope (RI) production (211At) for medical use at the RIKEN radioactive isotope beam factory (RIBF). If destructive monitors are used, since they generate outgassing, it becomes difficult to maintain the Q value and surface resistance indicating the performance of the superconducting radio frequency (SRF) cavities over a long period of time. Therefore it is crucially important to develop nondestructive beam measurement diagnostics. We have developed a beam energy position monitor (BEPM) system which can measure not only the beam position but also the beam energy simultaneously by measuring the time of flight of the beam. By using parabolic cut, ideal linear response of the quadrupole moments is realized, keeping a good linear position sensitivity at the same time. We fabricated 11 BEPMs and the position calibration system employing a wire method has been used to obtain the sensitivity and offset of BEPMs. We will describe details concerning the BEPM, calibration system and measured results.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 526
EP  - 529
KW  - network
KW  - linac
KW  - vacuum
KW  - impedance
KW  - quadrupole
DA  - 2019/11
PY  - 2019
SN  - 2673-5350
SN  - 978-3-95450-204-2
DO  - doi:10.18429/JACoW-IBIC2019-WEPP007
UR  - http://jacow.org/ibic2019/papers/wepp007.pdf
ER  -