[en] The present work provides previously unpublished stopping powers of ¹⁶O ions in Ni, Pd, In, Sn, Gd, Lu and Ta in the energy region ∼1.5-5 MeV. The experimental results are compared with TRIM91, SRIM96 and LSS predictions and agree within a few percentages with TRIM91 and SRIM96 calculations. In the present experimental energy region, a linear dependence of stopping powers on velocity of projectile ion was observed. The ⁴He energy loss is taken as the measure of the sample foil thickness. The effective charge ratios of ¹⁶O ions to hydrogen are calculated and compared with theoretical predictions

[en] Highlights: • A Cu_2O/Au/TiO_2 film was synthesized successfully. • Hydrogen production of Cu_2O/Au/TiO_2 film improved significantly. • The highest hydrogen production rate of the film was 125.3 mmol/h/m"2. • A Z-scheme charge transfer pathway was proposed. - Abstract: A novel Cu_2O/Au/TiO_2 photocatalyst composite film was fabricated on a copper substrate for photocatalytic hydrogen production. The composite films, Cu_2O/Au/TiO_2, were stepwise synthesized by using electrochemical deposition, photodeposition, and coating methods. First, a Cu_2O film was synthesized using the electrochemical deposition method, after which Au was deposited onto the Cu_2O film through in-site photodeposition. Finally, TiO_2 was coated on the surface of the Cu_2O/Au film. Its morphology and surface chemical composition was characterized by SEM, TEM, XRD and XPS. The optical characteristics (UV–Vis DRS, PL spectrum) of the films were also examined. The photocatalytic hydrogen production rate of the Cu_2O/Au/TiO_2 composite film from a 20% vol. methanol solution increased to125.3 mmol/h/m"2 under 300 W xenon lamp light irradiation. Compared to the TiO_2 (13.5 mmol/h/m"2) film and Cu_2O/TiO_2 film (83.2 mmol/h/m"2), the Cu_2O/Au/TiO_2 film showed excellent photocatalytic performance for hydrogen generation. The Cu_2O/Au/TiO_2 film has highly effective photocatalytic properties, which are attributed to the Z-scheme system and can not only enhance the absorption of solar light but also suppress the recombination of photogenerated electron-hole pairs. It is worth noting that by introducing Au into the interface of Cu_2O/TiO_2, the surface plasmon resonance (SPR)-induced local electric field formed at the Au site induces a Z-scheme charge transfer pathway inside the composite film (Cu_2O/Au/TiO_2), which promotes both the charge of the separation efficiency and redox ability of the photogenerated electron-hole pairs.

No abstract available

No abstract available

No abstract available

[en] The author described the structure and performance of a large area (500 mm x 500 mm) twin ionization chamber for the measurement of ΔE on radioactive second beam line. The energy resolution is 2.5% (α source 8.785 MeV) when the P10 gas pressure is 65kPa. A better isotope identification has been achieved using ΔE-TOF method

[en] Authors describe the structure and performance of the phoswich telescope made of 1 mm thick scintillator NE102A and 40 mm thick CsI(Tl). The front area of CsI(Tl) is 24 mm x 24 mm and back area is 37 mm x 37 mm. The p, d and t of isotope and all fragments have been separated clearly using QDC method

[en] The phoswich telescope is composed of a plastic scintillator NE102A (1 mm thick) and a slow scintillator NE115 (100 mm) thick). The signal from PMT anode is processed through the fast-slow gate QDC method. A good elemental resolution Z/ΔZ∼45 is achieved in the region of Z≤20

[en] A 36-unit scintillation multidetector system was built for measurement of charge particles at forward direction (5 degree≤θ≤20 degree) in heavy ion reactions of intermediate energy (10-100 MeV). Each phoswich is composed of 1 mm thick scintillator NE102A and 100 mm thick slow scintillator NE115. A good particle identification was achieved from atomic number Z = 1 up to Z = 20 using QDC method. The resolution power Z/ΔZ reaches to ∼45

[en] The zero-crossing timing method is used in a NE102A + CsI(Tl) + PMT phoswich detector at intermediate energy heavy ion to identify particle. The isotope of p,d,t and all fragments have been separated clearly in experimental results