Test Results for HINS Focusing Solenoids at Fermilab

Abstract

Abstract-A focusing lens R&D program is close to completion and industrial production of magnets has begun. Two types of magnets are being built for use in the room temperature RF section at the front end of a superconducting H-minus linac of a High Intensity Neutrino Source. All of the magnets are designed as a solenoid with bucking coils to cancel the field in the vicinity of adjacent RF cavities, and one type incorporates steering dipole corrector coils. We present a summary of the predicted and measured quench and magnetic properties for both R&D and production device samples that have been tested at Fermilab.

HINS Superconducting Lens and Cryostat Performance

“…The prototype cryostat contains magnet HINS_CH_SOL_01, which was assembled into a helium vessel and cold tested in a vertical dewar prior to installation in the cryostat [7]. This magnet was the first prototype Type-1 CH-section solenoid built as part of the HINS magnet R&D program [8]. A cross section of the production Type-1 solenoid cryostat is shown in Fig.…”

Magnetic Shielding for the Fermilab Vertical Cavity Test Facility

“…Therefore, before starting construction of the pit, the magnetic field in the vicinity was measured and verified to be consistent with the Earth's magnetic field [5].…”

HINS Linac Front End Focusing System R&D

“…In this paper we show results for the solenoid HINS_CH_SOL_04d (with dipole correctors), which are representative of all the solenoids. The test program and results are summarized in [6].…”

“…Solenoids for the CHsection are most advanced: having evolved from early designs and model magnets through prototyping and pre-production R&D stages, they are now into production and assembly into cryostats. Successful tests have been carried out at all of these stages [6].…”