Electrons (+ and -), protons, photons, neutrons, and cosmic rays,

"Published January 1935. Fifth impression May 1941."

Reconstruction of SN1987a event

IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. Using data from the PMT hits (bl003799) the neutrino interaction point and direction in the detector are shown (long purple line). The produced position (short purple line) is also shown along with its cherenkov cone hitting the walls of the detector (yellow squares).

Supernove 1987a before and after explosion

IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. The blue giant star Sanduleak in the large magellenic cloud exploded 170,000 years ago giving off a pulse of neutrinos that arrived at earth on 23 February 1987. For a few weeks it was as bright as 100 million suns.

Supernova 1987a neutrino event in IMB detector

IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. One of eight events recorded by IMB during the few seconds that the neutrino pulse from SN1987a passed through the detector. View looking into the south wall.

Sphere plot of SN1987a event

IMB (Irvine, Michigan, Brookline), a collaboration between the University of Michigan, the University of California at Irvine, and the U.S. Department of Energy, was an experiment designed to determine the ultimate stability of matter. PMT [photomultiplier tubes] hits from SN [supernovae] event projected onto sphere.

Interplanetary charged particle models (1974).

Cover title.

Conference papers /

Mode of access: Internet.

Beta rays from H³ /

"LADC 100"

Photographic dosimetry of X- and gamma rays.

Bibliography: p. 28.

Cosmic background explorer /

Mode of access: Internet.

A method for calculating and plotting surface wave rays /

See addenda at end of item.

The use of backscattered gamma rays for evaluating defects in logs and trees /

"Contract No. AT-(40-1)-2513."

The diffraction of light, X-rays, and material particles; an introductory treatment

Mode of access: Internet.

The examination of materials by X-rays.

Reprinted from the Transactions of the Faraday Society, v.15, pt.2, 1919.

Measurement of absorbed dose of neutrons, and of mixtures and gamma rays; recommendations.

At head of title: U.S. Dept. of Commerce. National Bureau of Standards.