Rieppo, Risto

name

• Rieppo, Risto

Authored works

• [alpha]-[gamma] angular correlation measurements with [sup 241]Am
• A method to measure average neutron activation cross-sections by isotopic neutron sources : the average neutron activation cross-sections of some (n,p)-reactions for a [sup 241]Am-Be source
• A study of the average neutron activation cross-sections of 115In(n, gamma)116In-reaction for 241AmBe neutron source
• A study of the average neutron activation cross-sections of [sup 55]Mn(n,[gamma])[sup 56]Mn-reaction for [sup 241]AmBe neutron source
• A study of the average neutron activation cross-sections of the 31p(n,[alfa])28 Al-reaction for a 241AmBe neutron source
• A study on the effect of water on the average cross-section of the 55Mn(n,gamma) 56Mn neutron activation reaction as a function of sample moisture
• Absolute photopeak efficiency values for an intrinsic well-type Ge detector in the [gamma]-ray region 0.1-3.0 MeV
• An experiment to detect the Compton scattering in water by a 2" x 2" NaI-detector
• Calculated absolute 10-500 KeV gamma-ray efficiency values for NaI-and BGO-detectors
• Calculated absolute photopeak and pair-production efficiency values of true closed-end coaxial Ge(Li)-detectors in the [gamma]-ray energy region 1.5-15 MeV
• Calculated absolute photopeak and total pair-production efficiency values of a well-type intrinsic Ge-detector in the [gamma]-ray region 1.5 - 15 MeV
• Calculated absolute photopeak and total pair-production efficiency values of true coaxial Ge(Li)-detectors in the [gamma]-ray energy region 1.5-15 MeV
• Calculated absolute photopeak efficiency values for different Ge detectors with biological materials as source media
• Calculated absolute photopeak efficiency values for different Ge-detectors in the [gamma]-ray energy region 0.1-3.0 MeV
• Calculated absolute photopeak efficiency values for true closed- end[and] coaxial Ge(Li)-detectors in the [gamma]-ray region 0.1-3.0 MeV
• Calculated absolute photopeak efficiency values for true coaxial Ge(Li)-detectors in the [gamma]-ray region 0.1 - 3.0 MeV with large extended volume sources
• Calculated efficiency values for Nal detectors and some applications
• Calculated neutron flux values of [sup 241]AmBe neutron sources at different distances from the face of the source
• Calculated total and absolute photopeak efficiency values for 3" x 3" NaI-detector with cylindrical source geometry
• Comparison between the absolute photopeak efficiency values of NaI, CsI and CaI2 detectors with a point source geometry
• Comparison between the average neutron activation (n, p) cross-section values for some light and medium nuclei in the 241AmBe neutron spectrum measured by two different methods
• Comparison between the efficiency values of NaI(Tl) and CdWO detectors in the gamma-ray energy region 0.1 - 3.0 MeV
• Determination of half-life for the 59.54 KeV excited level of [sup 237]Np
• Determination of the average neutron activation cross-section with an annular-scaped [sup 241]Am/Be neutron source and a Nal(Tl) detector for the [sup 27]Al(n,p)[sup 27]Mg-reaction
• Efficiency values of NaI-detectors in the low-energy gamma-ray region for a 4*-detecting geometry
• Intercomparison of the calculated absolute efficiency values between true coaxial and true closed-end coaxial Ge(Li)-and Nal-detectors
• Monte Carlo calculations of the [gamma]-ray photopeak efficiency values for a 3 x 3 in2 NaI detector in respect to inhomogeneous sources
• The absolute photopeak efficiency values for A 2 x 2 in. NaI face-type detector considering inhomogeneous sources

Works contributed to

• Age of [sup 241]Am/Be neutrons in paraffin
• Average cross sections of some [n,p] and [n,alfa] reactions for neutrons from a [sup 241]Am-Be source
• Calculated efficiency values for well-type Nal [TI]-detector
• High-efficiency 4" x 4" face-type NaI(T1) double crystal scintillation gamma ray spectrometer for use in absolute counting applications and precision measurements
• On direct gammaspectrometric measurement of isomeric cross-section ratios for (n,2n), (n,p), and (n,[alpha]) reactions at 14.7 MeV neutron energy
• Some properties of high-spin states of 59Ni from 57Fe (alpha, 2n) 59Ni* (gamma) reaction : 1, Experimental excitation functions
• The construction and design of the[sup 241]Am/Be neutron source unit for neutron activation

Works about Rieppo, Risto