title: MArs Neutron Energy Spectrometer (MANES): an instrument for the Mars 2003 Lander.
abstract: We describe the instrument design and detector development for MANES which has been selected to fly on the Mars 2003 Lander. Section 1 explains the need for the spectrometer in determining the increased risk of carcinogenesis for astronauts. Section 2 presents the instrument design including an outline drawing, a cross-sectional view and a detailed block diagram. Sections 3 and 4 describe the low and high energy detector components of the spectrometer and present responses to monoenergetic neutron beams. Sections 5 and 6 explain the design approaches to charged particle discrimination and instrument transfer function modeling.
authors.affiliation: Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723-6099, USA.
authors.forename: Richard H
authors.initials: RH
authors.lastname: Maurer
authors.forename: David R
authors.initials: DR
authors.lastname: Roth
authors.forename: James D
authors.initials: JD
authors.lastname: Kinnison
authors.forename: John O
authors.initials: JO
authors.lastname: Goldsten
authors.forename: Robert E
authors.initials: RE
authors.lastname: Gold
authors.forename: Raul
authors.initials: R
authors.lastname: Fainchtein
mesh_terms: D004867:Equipment Design; D018535:Mars; D009502:Neutrons; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection; D013026:Space Flight / Q000295:instrumentation*; D018531:Spacecraft / Q000295:instrumentation*; D013057:Spectrum Analysis / Q000295:instrumentation