title: Neutron dose rate at the SwissFEL injector test facility: first measurements.
abstract: At the Paul Scherrer Institute, the new SwissFEL Free Electron Laser facility is currently in the design phase. It is foreseen to accelerate electrons up to a maximum energy of 7 GeV with a pulsed time structure. An injector test facility is operated at a maximum energy of 300 MeV and serves as the principal test and demonstration plant for the SwissFEL project. Secondary radiation is created in unavoidable interactions of the primary beam with beamline components. The resulting ambient dose-equivalent rate due to neutrons was measured along the beamline with different commercially available survey instruments. The present study compares the readings of these neutron detectors (one of them is specifically designed for measurements in pulsed fields). The experiments were carried out in both, a normal and a diagnostic mode of operation of the injector.
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland eike.hohmann@psi.ch.
authors.forename: E
authors.initials: E
authors.lastname: Hohmann
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: N
authors.initials: N
authors.lastname: Frey
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Fuchs
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: C
authors.initials: C
authors.lastname: Harm
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: H
authors.initials: H
authors.lastname: Hödlmoser
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: R
authors.initials: R
authors.lastname: Lüscher
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: S
authors.initials: S
authors.lastname: Mayer
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: O
authors.initials: O
authors.lastname: Morath
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: R
authors.initials: R
authors.lastname: Philipp
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Rehmann
authors.affiliation: Paul Scherrer Institute, 5232 Villigen - PSI, Switzerland.
authors.forename: T
authors.initials: T
authors.lastname: Schietinger
mesh_terms: D000465:Algorithms; D002142:Californium; D003198:Computer Simulation; D004583:Electrons; D004867:Equipment Design; D009502:Neutrons; D010315:Particle Accelerators; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods*; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods*; D015203:Reproducibility of Results; D013557:Switzerland
chemical_list: D002142:Californium