Measurement of the Transverse Beam Emittance for the PEFP 20-MeV linac

Hong, Juho; Kwon, Hyeok Jung; Kim, D. I.; Yoon, Sang‐Pil; Kim, H. S.; Jang, Jiho; Cho, Y. S.

doi:10.3938/jkps.59.635

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“…beam sizes, on both sides of the beam waist, by varying current in QF1, as shown in figure 3c [12,14]. Three data points out of the above measurements were chosen to measure the beam emittance and the twiss parameters in the vertical plane, as shown in figure 3d.…”

Section: Measurement Of Transverse Beam Emittance and Twiss Parametersmentioning

confidence: 99%

Enhancing the accelerated beam current in the booster synchrotron by optimizing the transport line beam propagation

et al. 2015

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In this paper, we present the results of transverse beam emittance and twiss parameter measurement of an electron beam, delivered by a 20 MeV microtron which is used as a pre-injector system for a booster synchrotron in the Indus Accelerator Facility at RRCAT Indore. Based on these measured beam parameters, beam optics of a transport line was optimized and its results are also discussed in this paper. This beam transport line is used to transport the electron beam from the 20 MeV microtron to the booster synchrotron. The booster synchrotron works as a main injector for Indus-1 and Indus-2 synchrotron radiation facilities. To optimize the beam optics of a transport line for proper beam transmission through the line as well as to match the beam twiss parameters at the beam injection point of another accelerator, it is necessary to know the transverse beam emittance and twiss parameters of the beam coming from the first one. A MATLAB-based GUI program has been developed to calculate the beam emittance and twiss parameters, using quadrupole scan method. The measured parameters have been used for beam transport line optimization and twiss parameters matching at booster injection point. After this optimization, an enhancement of ∼50% beam current has been observed in the booster synchrotron.

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Section: Measurement Of Transverse Beam Emittance and Twiss Parametersmentioning

confidence: 99%