Ion track membranes (ITM) are of long-term interest due to the high potential of applications in science and industry. However, the use of the membranes requires a detailed knowledge of (i) their structural parameters, i.e., the density and distribution of the ITM pores, the pore size (radius) and spatial shape, or (ii) the pore filling with other materials (demanding the knowledge of filling efficiency, filler confinement, or filler density). In this work, we studied the nuclear membranes prepared with pores of certain density and size and filled with Au nanoparticles. The analysis was carried out by Ion Transmission Spectroscopy (ITS). ITS is a nondestructive technique to determinate the spatial structure of (sub)micron inhomogeneities (pores, protrusions, etc.) in thin foils from the energy loss of even quasi-monoenergetic alpha particles (e.g., from a thin ²⁴¹Am source) transmitted through the (empty or filled) pores. The reconstruction of the shape of the pores or pore fillings is performed by simulation of the transmission spectra using the MC code. The nuclear membranes were prepared by the irradiation of a thin polyethylene terephthalate with 157 MeV Xe⁺²⁶ ions (with the fluence 10⁶ cm⁻²) and the subsequent chemical etching in 9 M NaOH water solution at 50 °C for 40 min. The pores were filled with the Au nanoparticles (NPs) of a sub-micrometer size using the Pulse Laser Deposition (PLD), and studied by ITS. From the transmission spectra the shape of the pores filled (partially or fully) with Au NPs could be reconstructed. The ITM with pores filled with NPs were also analyzed by scanning electron microscopy (SEM). The results showed good agreement with the MC simulation of the ITS data.

离子跟踪膜（ITM）由于在科学和工业中的巨大应用潜力而备受关注。但是，膜的使用需要以下方面的详细知识：（i）其结构参数，即ITM孔的密度和分布，孔径（半径）和空间形状，或（ii）用其他材料填充孔（需要了解填充效率，填充物限制或填充物密度）。在这项工作中，我们研究了制备有一定密度和尺寸的孔并填充有金纳米颗粒的核膜。通过离子透射光谱法（ITS）进行分析。ITS是一种非破坏性技术，可以根据均匀的准单能α粒子（例如，纳米粒子）的能量损失来确定薄箔中的（亚）微米不均匀性（孔，突起等）的空间结构。²⁴¹ Am源）通过（空的或填充的）毛孔传播。孔或孔填充物的形状的重建是通过使用MC代码模拟透射光谱来进行的。核膜通过用157 MeV Xe ⁺²⁶离子（注量为10 ⁶ cm ^-2）辐照聚对苯二甲酸乙二醇酯薄层制备。），然后在9 M NaOH水溶液中于50°C进行化学蚀刻40分钟。使用脉冲激光沉积（PLD）将孔填充亚微米尺寸的Au纳米颗粒（NPs），并通过ITS进行研究。根据透射光谱，可以重建（部分或全部）被金纳米颗粒填充的孔的形状。还通过扫描电子显微镜（SEM）分析了具有被NP填充的孔的ITM。结果与ITS数据的MC模拟吻合良好。