Beam energy calibration for the folded tandem ion accelerator

Differential Cross-section Measurements for 3He Elastic Scattering on 16O and 27Al

“…In the case of 11 B no evaluated data exist, thus 2 different experimental datasets [2], [3] were used in an energy range (between 2700 to 3000 keV) where both of them showed good agreement. Finally, an additional measurement for the accelerator energy calibration was carried out at RBI with a proton beam at 1735 keV and a thin carbon foil using the resonance of the 12 C(p,p0) elastic scattering at 1734 keV [4]. A -2 keV offset from the nominal beam energy was thus determined, along with an estimated ripple of ~ 6 keV (roughly equal to two channels of the ADCs).…”

Development of Particle Induced Gamma-Ray Emission Methods for Nondestructive Determination of Isotopic Composition of Boron and Its Total Concentration in Natural and Enriched Samples

“…The total uncertainties at ±1 s confidence limit were evaluated by propagating individual uncertainties based on expressions given for total B concentrations (eq 5) and determination of IC 40 Since we have used the relative method, this uncertainty value was not considered in our calculations. The propagated uncertainty values on determined 10 B/ 11 B atom ratios were obtained from counting statistics of sample, standard, and current normalizing element, and they are in the range of ±0.8−1.9% (Table 1), whereas total uncertainty values at ±1 s confidence limit on measured concentrations of 10 B, 11 B, and total boron are within 2.0% (Tables 2−5).…”

“…The individual uncertainty values are: counting statistics of standards (∼0.1–0.8%), samples (∼0.1–1%), current normalizing standard (0.1–0.4%), and masses of samples and standards (∼0.05–0.4%) and concentration of standard (negligible to 0.3%). The energy uncertainty of the proton beam is about 0.2% on a 4 MeV proton beam . Since we have used the relative method, this uncertainty value was not considered in our calculations.…”