WebThe Half-Wave Resonator (HWR) has been widely used in proton and heavy ion accelerators, for it has particular advantages of accelerating low energy charged … Web8 mei 2016 · The last two identical cryomodules will host 7 HWR high-beta cavities (ߚ = 0.18) at 176 MHz. Low- beta and high beta cavities have been optimized to limit electric and magnetic peak fields in...
Mechanical Design of the HWR Cavities for the SARAF …
WebA superconducting half-wave resonator (HWR) of frequency=162.5 MHz and {\beta}=0.09 has been developed at Institute of Modern Physics. Mechanical stability of the low beta HWR cavity is a big... Webcavity for the FRIB. Left: schematics of the HWR cavity; Right: Niobium prototype of the HWR cavity. MP SIMULATION USING TRACK3P Simulations of multipacting for the HWR cavity were carried out using Track3P. Track3P is a 3D particle tracking code in electro-magnetic fields using the finite-element method [3,4,5,6]. The finite element grid with mpcc mccook bookstore
The structure of the HWR cavity. Download Scientific Diagram
WebHWR cavities are designed and being fabricated at TRI-UMF, shown in Fig. 2. The coaxial structure is chosen to represent the common geometry of low beta resonators. They are proposed to be the low beta style single cell cavities to investigate field dependent surface resistance as functions of surface treatment, heat treatment, and RF frequency. WebW avelength Resonator (HWR) cavity equipped with He tank, tuning system and power coupler in the final cry-omodule con -figuration. The nominal accelerating fi eld of 6.5MV/m is achieved with an injected power of 1.9 kW. This test has also permitted to validate the design of the tooling, the as sembly operations of a cavity with its power WebComparing with normal spoke or HWR cavities design, a noteworthy feature is that no bellow adopted to connect helium vessel with niobium cavity body, the purpose is to enhance the weak niobium cavity to against the outer air pressure, most important issue is to reduce the df/dp. Figure 4: Bellowless helium vessel jacket. mpc closed loop