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@inproceedings{kurennoy:ipac2021-mopab210, author = {S.S. Kurennoy and Y.K. Batygin}, title = {{High-Gradient Booster for Enhanced Proton Radiography at LANSCE}}, booktitle = {Proc. IPAC'21}, pages = {693--695}, eid = {MOPAB210}, language = {english}, keywords = {linac, booster, cavity, proton, focusing}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-MOPAB210}, url = {https://jacow.org/ipac2021/papers/mopab210.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-MOPAB210}, abstract = {{Increasing energy of proton beam at LANSCE from 800 MeV to 3 GeV improves radiography resolution ~10 times. We propose accomplishing this energy boost with a compact cost-effective linac based on cryo-cooled normal conducting high-gradient RF accelerating structures. High-gradient structures exceeding 100 MV/m have been developed for electron acceleration and operate with short RF pulse lengths below 1 us. Though such parameters are unusual for typical proton linacs, they fit perfectly for proton radiography (pRad) applications. The pRad limits contiguous trains of beam micro-pulses to less than 80 ns to prevent blur in images. For a compact pRad booster at LANSCE, we develop a staged design: a short section to capture and compress the 800-MeV proton beam followed by the main high-gradient linac. Our beam dynamics study addresses the beam magnetic focusing and minimizing its energy spread, which are challenging in high-gradient structures but very important for successful pRad operation.}}, }