[en] A method was elaborated for accurate calibration of nuclear reaction spectra, taken by multi-angle magnetic spectrograph. It is based on the least-squares analysis of spectral lines corresponding to the nuclei contained in the target. Explicit formulae for estimation of variances of masses, Q values and excitation energy are given. The effectivity of the present calibration procedure is demonstrated on ₃₅Cl(d, p)₃₆Cl experimental data. The results obtained are compared with the corresponding data from the (n, ß) reaction. Good agreement between both data sets is found. (orig.)

[en] The reactions ³⁴S(d, p)³⁵S and ³⁶S(d, p)³⁷S were studied at the incident deuteron energy of 12.3 MeV. Proton groups were analysed using a multi-angle magnetic spectrograph with the resolving power E/ΔEapprox.=1400. Precise Q-values corresponding to 13 states of ³⁵S up to the excitation energy of 7483 keV and 22 states of ³⁷S up to the excitation energy of 6406 keV are presented. The ground-state transition Q-value for the reaction ³⁶S(d, p)³⁷S was found to be 2079.12+-0.13 keV. Angular distributions of proton groups corresponding to 6 states in ³⁵S and to 11 states in ³⁷S were analysed using DWBA calculations. Transferred orbital angular momenta and spectroscopic factors were deduced. Summed spectroscopic strengths show that substantial parts of single-particle strength for 1fsub(7/2), 2psub(3/2) and 2psub(1/2) in both reactions are exhausted by the observed transitions. (orig.)

[en] The reaction ³⁵Cl(d,p)³⁶Cl was studied at deuteron energy 12.3 MeV using a multi-angle magnetic spectrograph with resolving power E/ΔE ≅ 2000. Precise excitation energies of 77 states in ³⁶Cl up to 7 MeV are presented. The level energies of some states were measured with a precision of 70-80 eV; several new states were found. Angular distributions of proton groups corresponding of 51 states in ³⁶Cl were analysed using DWBA calculations. Transferred orbital angular momenta and absolute values of spectroscopic factors were deduced. Spectroscopic factors for 36 states are given for the first time. The substantial parts of single-particle strengths for 1f and 2p orbits are exhausted by the observed l=3 and l=1 transitions. Spectroscopic strengths for the positive-parity states show that 2s and 1d orbits in the ground state of ³⁵Cl are much more empty than should follow from simple-shell-model or from calculations made in the full space of sd-shell-model wave functions by Wildenthal et al. (orig.)

[en] The accurate and precise (d, p) reaction Q-values and excitation energies corresponding to 98 states of final nuclei ^13,14C, ¹⁵N, ¹⁷O, ^29-31Si, ³³S, ³⁸Cl and ^{111,113,115,117}Cd are presented as a result of high resolution experiments performed with 12.3 MeV deuterons. The protons were analysed by multi-angle magnetic spectrograph. The resolving power E/ΔE of about 2000 and accurate calibration of spectra allowed to get the energies of most states with higher precision than is presently known. Angular distributions of protons from the reaction ³⁷Cl(d, p)³⁸Cl were analysed using DWBA calculations. Revised values of transferred orbital angular momenta and spectroscopic factors for 25 states of ³⁸Cl are given. Single-particle strengths for 1f and 2p orbitals are compared with respective single-particle strengths from the reaction ³⁶S(d,p)³⁷S. Sum rules indicate that substantial parts of 1f and 2p single-particle strengths are exhausted by states observed in present experiment. (orig.)

No abstract available

[en] A multi-angle magnetic spectrograph for recording the spectra of charged particles emitted in nuclear reactions was built. The apparatus and the beam transport system are described and their parameters are discussed. The total resolving power p/Δp was reached of 3000 to 4000; with the targets 50 to 100 μg/cm² thick. (author)

[en] The results of a (d,p) study of the ³⁶Cl level scheme are briefly presented and compared with recent reports on (n,γ) reactions. (author)

No abstract available

[en] Angular distribution of emitted protons was measured at a deuteron energy of 12.3 MeV. The energy levels of the ³¹Si nucleus were determined with high accuracy up to an excitation energy of 9 MeV. Thirty-four bound states and 47 unbound states were observed. The contribution of the direct process to the reaction is dominant. Therefore, DWBA (Distorted Wave Born Approximation) analysis was carried out for 14 bound states and 8 unbound states and the spectroscopic factors were calculated for them. Discrepancies in spectroscopic data obtained by different authors are discussed. For instance, for the 5.28 MeV state, the DWBA calculation gives a better fit for the transferred orbital momentum l = 1 than for l = 0. Improvement of the fit by choosing a different l value was also obtained for the levels of 5.95, 6.58, and 7.43 MeV

[en] The reaction ³⁰Si(d,p)³¹Si is studied at the incident deuteron energy of 12.3 MeV. Proton groups are analysed using a multi-angle magnetic spectrograph with the resolving power E/ΔE∼1000. Angular distributions of proton groups corresponding to 14 bound states and to 8 unbound states of the ³¹Si nucleus are analysed using DWBA calculations. Deduced transferred orbital angular momenta and spectroscopic factors differ for some states from those obtained previously. In particular, we attribute l=1 transfer to the state at 5.281 MeV. Shell-model calculations are performed in a complete 0ℎω model space for positive-parity states and in a restricted 1ℎω model space including f7/2, p3/2 and p1/2 neutron orbits for negative-parity states. The excitation energies as well as spectroscopic strengths of most of strongly excited positive- and negative-parity states are reasonably well interpreted within the shell model