Experience with Long-pulse Operation of the PIP2IT Warm Front End

Authors :: Shemyakin, A.
Carneiro, J. -P.
Chen, A.
Frolov, D.
Hanna, B.
Neswold, R.
Prost, L.
Saewert, G.
Saini, A.
Scarpine, V.
Warner, A.
Wu, J. -Y.
Richard, C.
Publication Year :: 2019
Abstract: The warm front end of the PIP2IT accelerator, assem-bled and commissioned at Fermilab, consists of a 15 mA DC, 30 keV H- ion source, a 2 m long Low Energy Beam Transport (LEBT) line, and a 2.1 MeV, 162.5 MHz CW RFQ, followed by a 10 m long Medium Energy Beam Transport (MEBT) line. A part of the commissioning efforts involves operation with the average beam power emulating the operation of the proposed PIP-II accelera-tor, which will have a duty factor of 1.1% or above. The maximum achieved power is 5 kW (2.1 MeV x 5 mA x 25 ms x 20 Hz). This paper describes the difficulties encoun-tered and some of the solutions that were implemented.<br />Comment: 4 pages, NAPAC2019