Search Results - "Commisso, R J"

An Analysis of Intense Pulsed Active Detection (IPAD) for the Detection of Special Nuclear Materials by Swanekamp, S. B., Apruzese, J. P., Commisso, R. J., Mosher, D., Schumer, J. W.

“…We propose and analyze computationally the Intense Pulsed Active Detection (IPAD) of fissile materials. This approach employs bremsstrahlung photons from a…”
Get full text

High-power, photofission-inducing bremsstrahlung source for intense pulsed active detection of fissile material by Zier, J. C., Mosher, D., Allen, R. J., Commisso, R. J., Cooperstein, G., Hinshelwood, D. D., Jackson, S. L., Murphy, D. P., Ottinger, P. F., Richardson, A. S., Schumer, J. W., Swanekamp, S. B., Weber, B. V.

“…Intense pulsed active detection (IPAD) is a promising technique for detecting fissile material to prevent the proliferation of special nuclear materials. With…”
Get full text

A Review of the Gas-Puff Z -Pinch as an X-Ray and Neutron Source by Giuliani, J. L., Commisso, R. J.

“…Fisher and collaborators at the University of California, Irvine, invented the gas puff Z-pinch in the late 1970s using a 200-kA generator. The implementation…”
Get full text

Density redistribution in a microsecond-conduction-time plasma opening switch by HISNHELWOOD, D, WEBER, B, GROSSMANN, J. M, COMMISSO, R. J

Get full text

Plasma Erosion Opening Switch Research at NRL by Weber, B. V., Commisso, R. J., Cooperstein, G., Grossmann, J. M., Hinshelwood, D. D., Mosher, D., Neri, J. M., Ottinger, P. F., Stephanakis, S. J.

“…This paper is a review of plasma erosion opening switch (PEOS) research performed at the Naval Research Laboratory (NRL). Several experimental and theoretical…”
Get full text

Current distribution in a plasma erosion opening switch by WEBER, B. V, COMMISSO, R. J, MEGER, R. A, NERI, J. M, OLIPHANT, W. F, OTTINGER, P. F

“…The current distribution in a plasma erosion opening switch is determined from magnetic field probe data. During the closed state of the switch the current…”
Get full text

Detectors for intense, pulsed active detection by Jackson, S L, Allen, R J, Apruzese, J P, Commisso, R J, Hinshelwood, D D, Mosher, D, Murphy, D P, Ottinger, P F, Schumer, J W, Swanekamp, S B, Young, F C, Cooperstein, G, Hunt, A W, Seipel, H A, Gagliardi, M A

“…In intense, pulsed active detection, a single, intense pulse of radiation is used to induce photofission in fissionable material, increasing its detectability…”
Get full text

Evaluation of self-magnetically pinched diodes up to 10 MV as high-resolution flash X-ray sources by Swanekamp, S.B., Cooperstein, G., Schumer, J.W., Mosher, D., Young, F.C., Ottinger, P.F., Commisso, R.J.

“…The merits of several high-resolution, pulsed-power-driven, flash X-ray sources are examined with numerical simulation for voltages up to 10 MV. The charged…”
Get full text

Investigation of plasma opening switch conduction and opening mechanisms by Weber, B.V., Commisso, R.J., Goodrich, P.J., Grossmann, J.M., Hinshelwood, D.D., Kellogg, J.C., Ottinger, P.F.

“…Plasma opening switch techniques have been developed for pulsed power applications to exploit the advantages of electrical energy storage in a vacuum inductor…”
Get full text

Experimental evaluation of a megavolt rod-pinch diode as a radiography source by Commisso, R.J., Cooperstein, G., Hinshelwood, D.D., Mosher, D., Ottinger, P.F., Stephanakis, S.J., Swanekamp, S.B., Weber, B.V., Young, F.C.

“…The rod-pinch diode is a cylindrical pinched-beam diode that provides an intense pulsed small-diameter bremsstrahlung source for radiography. For this work,…”
Get full text

Vacuum inductive store/pulse compression experiments on a high power accelerator using plasma opening switches by Meger, R. A., Commisso, R. J., Cooperstein, G., Goldstein, Shyke A.

“…The first results of experiments using plasma opening switches for inductive energy storage are described. The switch has been shown to conduct up to 200-kA…”
Get full text

10 keV to 100 keV non-thermal radiation from high-Z exploding wires by Weber, B. V., Commisso, R. J., Jackson, S. L., Mosher, D.

“…Summary form only given. There is an interest in 10 keV to 100 keV radiation sources for some types of radiation-interaction studies. The approach presented…”
Get full text

Application of TW-level pulsed power to the problem of finding fissile material by Commisso, R. J.

“…Development of techniques for finding contraband fissile material is an area of great importance for national and international security. 1 Because passive…”
Get full text

Long conduction time plasma erosion opening switch experiment by Hinshelwood, D. D., Boller, J. R., Commisso, R. J., Cooperstein, G., Meger, R. A., Neri, J. M., Ottinger, P. F., Weber, B. V.

“…A plasma erosion opening switch, coupled to a small capacitor bank, conducts 120 kA for 400 ns before opening in 40 ns. Voltages above 170 kV are produced…”
Get full text

Observation of Collisionless Heating and Thermalization of Ions in a Theta Pinch by Commisso, R. J., Griem, Hans R.

“…Spectral line profiles from impurity ions in a small theta pinch have been measured and are interpreted as ion-velocity distribution functions. For…”
Get full text

Z pinch imploding plasma density profile measurements using a two-frame laser shearing interferometer by Niansheng Qi, Schein, J., Thompson, J., Coleman, P., McFarland, M., Prasad, R.R., Krishnan, M., Weber, B.V., Moosman, B.G., Schumer, J.W., Mosher, D., Commisso, R.J., Bell, D.

“…A laser shearing interferometer (LSI) was used to make spatially and temporally resolved measurements of the electron density profile in an imploding z pinch…”
Get full text

Inductively generated, high voltage pulse using an electron beam controlled opening switch by Commisso, R. J., Fernsler, R. F., Scherrer, V. E., Vitkovitsky, I. M.

“…An electron beam controlled opening switch with a conduction period of ∼1 μs has been used in an inductive store system to generate a 280-kV, 60-ns full width…”
Get full text

Pulsed, intense electron beams for material response studies without the use of external magnetic fields by Commisso, R. J., Angus, J. R., Hinshelwood, D. D., Jackson, S. L., Mosher, D., Ottinger, P. F., Richardson, A. S., Schumer, J. W., Weber, B. V., Barnes, N. R., Neal, J. S., Sinclair, M.

“…Summary form only given. Direct irradiation of materials by electron beams (e-beams) has been used to study material response. The desire to utilize high-power…”
Get full text

MHD-to-PIC transition for modeling of conduction and opening in a plasma opening switch by Schumer, J.W., Swanekamp, S.B., Ottinger, P.F., Commisso, R.J., Weber, B.V., Smithe, D.N., Ludeking, L.D.

“…The plasma opening switch (POS) is a critical element of some inductive-energy-storage pulsed-power generators. Detailed understanding of plasma redistribution…”
Get full text

Plasma Erosion Opening Switch Operation at Long Conduction Times by Hinshelwood, D. D., Boller, J. R., Commisso, R. J., Cooperstein, G., Meger, R. A., Neri, J. M., Ottinger, P. F., Weber, B. V.

“…The plasma erosion opening switch (PEOS) can conduct large (~megamperes) currents for several tens of nanoseconds before opening in < 10 ns, generating…”
Get full text