title: A portable shield for a neutron howitzer used for instructional and research purposes.
abstract: Neutron howitzers are routinely used in universities to activate samples for instructional laboratory experiments on radioactivity. They are also a convenient source of neutrons and gammas for research purposes, but they must be used with caution. This paper describes the modeling, design, construction, and testing of a portable, economical shield for a 1.0 Curie neutron howitzer. The Monte Carlo N Particle Transport Code (MCNP5) has been used to model the (239)PuBe source and the howitzer and to design the external neutron and gamma shield.
authors.affiliation: San Francisco State University, Department of Physics and Astronomy, San Francisco, CA 94132, United States. Electronic address: sali@sfsu.edu.
authors.forename: S
authors.initials: S
authors.lastname: Ali
authors.affiliation: Naval Postgraduate School, Monterey, CA 93943, United States.
authors.forename: M
authors.initials: M
authors.lastname: Laherty
authors.affiliation: San Francisco State University, Department of Physics and Astronomy, San Francisco, CA 94132, United States.
authors.forename: J W
authors.initials: JW
authors.lastname: Laprade
authors.affiliation: San Francisco State University, Department of Physics and Astronomy, San Francisco, CA 94132, United States.
authors.forename: P M
authors.initials: PM
authors.lastname: Cala
authors.affiliation: San Francisco State University, Department of Physics and Astronomy, San Francisco, CA 94132, United States.
authors.forename: F P
authors.initials: FP
authors.lastname: Lipschultz
authors.affiliation: San Francisco State University, Department of Physics and Astronomy, San Francisco, CA 94132, United States.
authors.forename: B
authors.initials: B
authors.lastname: Neuhauser
keywords: (239)PuBe; Gamma shield; MCNP5; Neutron howitzer; Neutron shield