Development of the diagnostic beamline for muon acceleration test with APF IH-DTL

Ibaraki, Yuka*; Iijima, Toru*; Inami, Kenji*; Sue, Yuki*; Sumi, Kazumichi*; Yotsuzuka, Mai*; Cicek, E.*; Ego, Hiroyasu*; Kawamura, Naritoshi*; Mibe, Tsutomu*; Otani, Masashi*; Saito, Naohito*; Yamazaki, Takayuki*; Yoshida, Mitsuhiro*; Hayashizaki, Noriyosu*; Iwata, Yoshiyuki*; Kondo, Yasuhiro   ; Kitamura, Ryo   ; Morishita, Takatoshi  ; Nakazawa, Yuga*; Takeuchi, Yusuke*

The muon-dedicated linear accelerator is being developed for the muon g-2/EDM experiment at J-PARC. To suppress the decay loss during acceleration, the alternative phase focusing (APF) method inter-digital H-mode drift tube linac (IH-DTL) is adopted in the low-velocity region following a radio-frequency quadrupole linac (RFQ). We are planning to accelerate muons in 2025 using the RFQ and the IH-DTL which will accelerate muons from 8% to 30% of the speed of light with an operating frequency of 324 MHz. After the IH-DTL, a diagnostic beamline will be placed to measure the beam energy and quality after acceleration, and its design, which consists of magnets and bunchers, is underway. In this poster, we will report on the development status of the diagnostic beamline.