Journal
PHYSICAL REVIEW ACCELERATORS AND BEAMS
Volume 24, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevAccelBeams.24.020101
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Funding
- National Natural Science Foundation of China [U1730120, 11975138]
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This paper describes the construction, rf measurement and tuning, rf conditioning, and beam commissioning of a compact 325 MHz interdigital H-mode (IH) drift tube linac (DTL) at Tsinghua University. The IH-DTL accelerates a proton beam from 3 MeV to 7 MeV in about 1 m, with high average gradient of 4 MV/m and efficient shunt impedance of 101 M Omega/m. The developed IH-DTL can be applied to the injectors of medical proton machines.
This paper describes the construction, rf measurement and tuning, rf conditioning, and beam commissioning of a compact 325 MHz interdigital H-mode (IH) drift tube linac (DTL) with modified KONUS (Kombinierte Null Grad Struktur, combined zero-degree structure) beam dynamics at Tsinghua University. This IH-DTL accelerates a proton beam from 3 MeV to 7 MeV in about 1 m. With a high rf frequency of 325 MHz, the cavity is designed to be compact while retaining a high average gradient of 4 MV/m. The efficient shunt impedance ZT(2) is 101 M Omega/m. The beam test results show good agreement with the beam dynamics design. The developed compact IH-DTL can be applied to the injectors of medical proton machines.
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