Nonlinear response of Si detectors for low-Z ions

Accurate measurements of the 8 B neutrino spectrum are important for the interpretation of solar neutrino data. Experimentally, the 8 B neutrino spectrum can be obtained from the measurement of the β-delayed α spectrum. We report on an α-α coincidence measurement performed at the IGISOL facility in Jyväskylä, Finland. Our measurement allows extensive cross-checks to be performed and gives a more intense neutrino spectrum at high energies compared to the present standard. The deviation reaches 4% at the end point of the spectrum. Below 11 MeV, the deviation is less than 1%.

show abstract

“…We note, however, that the TRIM predictions are about 10 keV below the calculations presented in Ref. [39]. As pointed out in Ref.…”

Section: E Nonlinear Response At Low Energymentioning

confidence: 47%

“…6) and the 1.4% pulse height defect given in Ref. [39,40]. A dedicated analysis of the 23 Al data will be published separately [41].…”

Section: E Nonlinear Response At Low Energymentioning

confidence: 99%

Precise and accurate determination of theB8decay spectrum

Kirsebom¹,

Hyldegaard²,

Alcorta³

et al. 2011

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…SRIM range tables [30] were used to correct for energy losses in the source and the detector deadlayers, taking into account the varying effective thickness due to the angle of incidence and assuming a point-like source. Corrections were also made for the non-ionizing energy loss [31] in the active detector volume, i.e., the energy loss that does not contribute to the measured signal. The source thickness was determined to be 100(4) nm carbon equivalent by rotating the source relative to the detector while monitoring the rate of change of pulse height with angle.…”

Section: Energy Calibrationmentioning

confidence: 99%

Complete kinematical study of the 3 $\alpha$ breakup of the 16.11 MeV state in 12C

et al. 2016

View full text Add to dashboard Cite

Abstract. The reaction11 B + p has been used to populate the (J π , T ) = (2 + , 1) state at an excitation energy of 16.11 MeV in 12 C, and the breakup of the state into three α-particles has been studied in complete kinematics. A two-step breakup model which includes interference effects is found to provide the most accurate description of the experimental data. The branching ratio to the ground state of 8 Be is determined to be 5.1(5)% in agreement with previous findings, but more precise by a factor of two, while the decay to the first excited state in 8 Be is found to be dominated by d-wave emission.

show abstract

“…Both parts of the stopping power will differ for protons and α-particles and this effect can be corrected for as described in Ref. [10]. Accordingly, the energy calibration can be transformed by first correcting the energy deposited in the detector for the difference in the non-ionizing energy lost for the two types of particles.…”

Section: Energy Calibrationmentioning

confidence: 99%

Beta-delayed proton emission from 21Mg

et al. 2015

View full text Add to dashboard Cite

Abstract. Beta-delayed proton emission from 21 Mg has been measured at ISOLDE, CERN, with a detection setup including particle identification capabilities. β-delayed protons with center of mass energies between 0.39 MeV and 7.2 MeV were measured and used to determine the half life of 21 Mg as 118.6±0.5 ms. From a line shape fit of the βp branches we extract spectroscopic information about the resonances of 21 Na. Finally an improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented.PACS. 23.40.Hc Relation with nuclear matrix elements and nuclear structure -27.30.+t 20 ≤ A ≤ 38 -29.30.Ep Charged-particle spectroscopy

show abstract

Nonlinear response of Si detectors for low-Z ions

Cited by 81 publications

References 13 publications

Precise and accurate determination of theB8decay spectrum

Precise and accurate determination of theB8decay spectrum

Complete kinematical study of the 3 $\alpha$ breakup of the 16.11 MeV state in 12C

Beta-delayed proton emission from 21Mg

Contact Info

Product

Resources

About