Investigation of (p,xd) reaction on 120Sn nucleus at proton energy of 30 MeV

The 1459-keV level of 19F was populated by the 19F(p,p′γ)19F reaction at a proton energy of 2.78 MeV. The E2/M1 mixing ratio for the 1459 → 110 keV transition was determined to be [Formula: see text] from a combination of the γ-ray angular distribution and linear polarization and the nuclear lifetime. The γ-ray angular distribution was measured with a coaxial Ge(Li) detector and the γ-ray linear polarization with a planar Ge(Li) detector. The corresponding E2 and M1 transition strengths for a lifetime of 0.084 ± 0.020 ps are found to be [Formula: see text] and 0.10 ± 0.03 W.u. respectively. They are in good agreement with the particle–hole calculations of Benson and Flowers. The branching ratios of the 1459-keV level agree well with those of Poletti et al. The γ-ray transitions from the 1459-keV level provide a good example for demonstrating the usefulness of a single crystal Ge(Li) polarimeter.

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Effects of Beam Conditions in Ground Irradiation Tests on Degradation of Photovoltaic Characteristics of Space Solar Cells

Quantum Beam Science ◽

10.3390/qubs5020015 ◽

2021 ◽

Vol 5 (2) ◽

pp. 15

Author(s):

Mitsuru Imaizumi ◽

Takeshi Ohshima ◽

Yosuke Yuri ◽

Kohtaku Suzuki ◽

Yoshifumi Ito

Keyword(s):

Solar Cells ◽

Proton Energy ◽

Proton Irradiation ◽

Test Method ◽

Fluence Rate ◽

Proton Beams ◽

Irradiation Test ◽

Significant Difference ◽

Area Expansion ◽

Photovoltaic Characteristics

We investigated the effects of irradiation beam conditions on the performance degradation of silicon and triple-junction solar cells for use in space. The fluence rates of electron and proton beams were varied. Degradation did not depend on the fluence rate of protons for both cells. A higher fluence rate of electrons caused greater degradation of the Si cell, but the dependence was due to the temperature increase during irradiation. Two beam-area expansion methods, defocusing and scanning, were examined for proton irradiation of various energies (50 keV–10 MeV). In comparing the output degradation from irradiation with defocused and scanned proton beams, no significant difference in degradation was found for any proton energy. We plan to reflect these findings into ISO standard of irradiation test method of space solar cells.

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Proton angular distribution research by a new angle-resolved proton energy spectrometer

Science China Physics Mechanics and Astronomy ◽

10.1007/s11433-014-5419-z ◽

2014 ◽

Vol 57 (5) ◽

pp. 844-848 ◽

Cited By ~ 2

Author(s):

LuNing Su ◽

Yi Zheng ◽

Meng Liu ◽

ZhiDan Hu ◽

WeiMin Wang ◽

...

Keyword(s):

Angular Distribution ◽

Proton Energy ◽

Energy Spectrometer

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Inclusive Proton Energy Spectra of the Deuteron Induced Reaction

Chinese Physics Letters ◽

10.1088/0256-307x/28/11/112401 ◽

2011 ◽

Vol 28 (11) ◽

pp. 112401 ◽

Cited By ~ 1

Author(s):

Jia Wang ◽

Tao Ye ◽

Wei-Li Sun ◽

Yukinobu Watanabe ◽

Kazuyuki Ogata

Keyword(s):

Proton Energy ◽

Energy Spectra ◽

Induced Reaction

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NUCLEAR MICROSCOPY AT LIVERMORE

International Journal of PIXE ◽

10.1142/s012908359400012x ◽

1994 ◽

Vol 04 (02n03) ◽

pp. 93-95

Author(s):

GRAHAM S. BENCH

Keyword(s):

Energy Loss ◽

Proton Energy ◽

Nuclear Microprobe ◽

Nuclear Microscopy ◽

New Facility

The construction of a new Nuclear Microprobe at the Livermore multi-user 10 MV FN tandem Laboratory has recently been completed. The facility is primarily used for PIXE, PIGE and Proton energy loss tomography (PELT) in a broad range of multi-disciplinary sciences. Details of the new facility and current applications/programs are discussed.

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Simulation of Proton Beam Effects in Thin Insulating Films

International Journal of Photoenergy ◽

10.1155/2013/128410 ◽

2013 ◽

Vol 2013 ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

Ljubinko Timotijevic ◽

Irfan Fetahovic ◽

Djordje Lazarevic ◽

Milos Vujisic

Keyword(s):

Monte Carlo ◽

Silicon Nitride ◽

Integrated Circuits ◽

Silicon Dioxide ◽

Monte Carlo Simulations ◽

Proton Energy ◽

Transport Parameters ◽

Insulating Layer ◽

Insulating Films ◽

Ultrathin Layers

Effects of exposing several insulators, commonly used for various purposes in integrated circuits, to beams of protons have been investigated. Materials considered include silicon dioxide, silicon nitride, aluminium nitride, alumina, and polycarbonate (Lexan). The passage of proton beams through ultrathin layers of these materials has been modeled by Monte Carlo simulations of particle transport. Parameters that have been varied in simulations include proton energy and insulating layer thickness. Materials are compared according to both ionizing and nonionizing effects produced by the passage of protons.

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Achromatic method for measuring the 654 MeV mean proton energy by using Vavilov-Cherenkov radiation

Nuclear Instruments and Methods ◽

10.1016/0029-554x(73)90241-3 ◽

1973 ◽

Vol 107 (2) ◽

pp. 279-284 ◽

Cited By ~ 5

Author(s):

V.P. Zrelov ◽

P. Pavlovič ◽

P. Šulek

Keyword(s):

Proton Energy ◽

Cherenkov Radiation

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Initial Research of np Scattering with Polarized Deuterium Target at ANKE/COSY

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194516600582 ◽

2016 ◽

Vol 40 ◽

pp. 1660058

Author(s):

B. Gou

Keyword(s):

Proton Energy ◽

Impulse Approximation ◽

Deuteron Beam ◽

Charge Exchange Reaction ◽

Analyzing Powers ◽

Deuterium Target ◽

Energy Formula ◽

Reported Data ◽

Initial Research ◽

Proof Of Principle

The quasi-free np charge-exchange reaction [Formula: see text] has to be employed to extend the investigations of np scattering at ANKE to the highest energy available at COSY. As the proof-of-principle experiment, the initial research has been conducted at proton energy [Formula: see text] MeV using a polarized Deuterium target. The vector and tensor analyzing powers [Formula: see text] and [Formula: see text] were measured for momentum transfers [Formula: see text] MeV/c. These data connect smoothly with the previous measurements at [Formula: see text] MeV/c performed using a polarized deuteron beam. The reported data are well reproduced by the impulse approximation using the SAID np amplitudes. The results therefore proves that it is possible to continue the np programme at higher energies at ANKE.

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