Magnetic Analysis of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">V</mml:mi></mml:mrow><mml:mrow><mml:mn>51</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mo>(</mml:mo><mml:mi>d</mml:mi><mml:mo>,</mml:mo><mml:mi> </mml:mi><mml:mi>p</mml:mi><mml:mo>)</mml:mo><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">V</mml:mi></mml:mrow><mml:mrow><mml:mn>52</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Reaction

Schwager, J.; Cox, Lyle A.

doi:10.1103/physrev.92.102

Cited by 25 publications

(3 citation statements)

References 7 publications

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“…61 The positions of the levels of V 52 have been measured by the (d,p) reaction by Abramov 62 and by Schwager and Cox. 63 The latter authors find more than twenty levels below 3.31 Mev. The energies of the first five of these are 0.13, 0.42, 0.78,0.83, and 1.40 Mev, and in addition a weak capture 7 ray of energy 6.62±0.02 Mev might possibly correspond to a level at 0.69 Mev 61 though this is not otherwise confirmed.…”

Section: Vanadiummentioning

confidence: 94%

Neutron-CaptureγRays from Various Elements

Braid

1956

Phys. Rev.

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Neutron-capture 7-ray spectra have been measured in the energy range 0.3 to 3 Mev by means of a two-crystal Compton scintillation spectrometer. The efficiency of the instrument as a function of energy was determined experimentally. The uniqueness of the 2.23-Mev 7 ray following capture of a neutron by hydrogen has been confirmed, and this 7 ray was used as a standard to establish the absolute intensity of 7 rays from other elements.Most of the 7 rays observed can be understood in terms of known levels, and many appear to be emitted in transitions from such levels to the ground state. In many cases, the information obtained complements high-energy data in establishing preferred modes of decay of the product nucleus.In sodium a very strong 7 ray is emitted from the first excited state of Na 24 at 0.47 Mev, and another ground-state 7 ray appears to be emitted from the level at 1.34 Mev. The strongest 7 ray in the magnesium spectrum is an El transition between the levels at 3.41 and 0.58 Mev in Mg 25 . The aluminum spectrum is very complex, and only a few peaks have been resolved. A ground-state transition is seen from the level at 2.27 Mev in Al 28 .In silicon two El transitions are observed from the capturing level to the levels at 4.93 and 6.38 Mev, and a ground-state transition is seen from the first excited state at 1.28 Mev. Groundstate transitions are observed from the levels at 0.52, 1.15, and 2.18 Mev in P 32 . In sulfur, there is a strong ground-state 7 ray from the first excited state at 0.84 Mev, and a strong El transition to this level from that at 2.34 Mev.In chlorine almost all of the observed 7 rays can be understood as ground-state transitions from known levels in CI 36 at 0.79, 1.16, 1.95, 2.47, and 2.87 Mev. In K 40 the decay scheme involves several level to level transitions. 7 rays to the ground state are observed from the levels at 2.05 and 3.40 Mev in K 40 , and possibly from the 1.18-Mev level in K 42 .The spectra from calcium and titanium are very simple. A strong 7 ray occurs almost once per capture in Ca 40 from the 1.95-Mev first excited state of Ca 41 , and a strong 7 ray from the 1.39-Mev first excited state of Ti 49 occurs almost once per capture in Ti* 8 .In V 52 most of the observed 7 rays are emitted by levels below 1 Mev. Ground-state transitions occur from the levels at 0.42 and 0.83 Mev. In Cr 54 a very strong 7 ray to the ground state is emitted by the level at 0.84 Mev, and a weak transition may be from the 0.54-Mev level in Cr 53 to the ground state. 7 rays to the ground state are observed from levels at 0.42 and 0.88 Mev in Ni 59 . No definite identification can be made of the four 7 rays observed from zinc. The Cd 114 spectrum contains many unresolved radiations; by far the most intense is the 0.56-Mev 7 ray which is emitted from the first excited state.

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Section: Vanadiummentioning

confidence: 94%

Neutron-CaptureγRays from Various Elements

Braid

1956

Phys. Rev.

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“…It was prepared by Schwager and Cox 17 and had been used in an investigation of the Y 51 (d,p)V b2 reaction. 18 This target was bombarded with protons from the ONR electrostatic accelerator, 19 in momentum with a broad-range magnetic spectrograph. 20 A feature of this spectrograph is that a considerable portion of the entire spectrum is recorded simultaneously.…”

Section: Experimental Methodsmentioning

confidence: 99%

Inelastic Proton Scattering from Vanadium

1955

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The low-lying excited states of V 51 have been investigated by means of inelastic proton scattering. Protons were accelerated to 6.0, 7.0, and 7.4 Mev in the MIT-ONR electrostatic generator, and the scattered protons were analyzed with a broad-range magnetic spectrograph, observations being made at 90 and 130 degrees to the incident beam. Proton groups were found which corresponded with levels in V 51 at 0.322±0.002, 0.931 ±0.003, 1.614±0.005, and 1.819±0.05 Mev. A large number of lower energy groups were observed, which are associated with excited states between 1.85 and 4.50 Mev. Two groups of alpha particles were also observed and assigned to the ground state and first excited state formed in the V 51 (^,a)Ti 48 reaction (Q= 1.161 and 0.167 Mev).

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“…2 Sheline also proposed a decay scheme, 3 and Marquez 4 reported the beta-ray spectrum of Mg 28 to have an allowed shape, a maximum energy of 418±10 kev, and a log// of 4.25.…”

mentioning

confidence: 99%