最新加入我们产品向的是非常实用的高品质TEM分辨率校准标样。这些标准样品是用经过精心挑选的特殊材料制成的，可以生成可靠的TEM测试标准。这些标样附着在铜、金或者铝制的方格铜网上。

EM-Tec TS1 TEM标样-多孔碳膜

多孔碳膜可以用于测试TEM的工作状态，尤其是像散矫正。适合的倍率最高250,000x。这种多孔碳膜负载在400目的TEM铜网上。

EM-Tec TS2 TEM标样-喷镀的铂/铱

这种TEM测试标样是将铂/铱的颗粒喷镀在多孔碳膜上。碳膜上的孔可以用于调焦和像散矫正。铂/铱的纳米颗粒提供了极佳的高衬度，用于点分辨测试。负载于300目的TEM铜网上。

EM-Tec TS3 TEM混合标准测试样

这种混合标准样品为测试TEM状况提供了一种三合一的工具。这种混合标样包含多孔碳膜上的石墨化碳颗粒和金颗粒。结合The combined test specimen consists of graphitised carbon particles on a holey carbon which are shadowed with gold. Combines astigmatism test using perforated carbon film with resolution tests using graphitised carbon black and fine gold particles. The evaporated gold forms small polycrystalline islands in which lattice fringes can be resolved. The combined test specimen can also be used for contamination measurements by noting the carbon depositing rate within the holes of the gold film. Mounted on a 300 mesh copper TEM grid

EM-Tec TC1 TEM calibration standard oriented gold crystal

Oriented gold crystal provides plane spacing of 0.102, 0.143 and 0.204nm. Used for checking resolution, image quality, magnification and instrument stability in high resolution TEMs. The single oriented gold crystals produces a characteristic diffraction patterns. When the TEM is correctly setup, it should resolve the 0.102 nm (100 plane) planar spacing, 0.143 nm (220 plane) and the 0.204nm (200 plane). Since these are physical constants they can also be used for magnification calibration. Mounted on a 400 mesh Au TEM grid.

EM-Tec TC2 TEM calibration standard evaporated Al film

The aluminium film of around 30nm is used for calculating the value of the camera length. The small Al crystals provide a well defined diffraction pattern. The Al film is evaporated on a holey carbon on a 400 mesh Cu TEM grid.

EM-Tec TC3 TEM EDX calibration standard thin Cu foil on Al grid

A thin copper foil on an aluminium TEM grid provides well defined and separated lines of Al (K-line) and Cu (K- and L-lines) in an EDX spectrum. These lines can be used to calibrate the EDX spectrometer and to asses EDX detector efficiency. The carbon coated 60nm Cu foil is mounted on a 200 mesh aluminium TEM grid.

EM-Tec TR1 TEM resolution standard fine gold particles

The finely dispersed thin gold particles on a carbon film provide an excellent high resolution TEM standard. The gold particle size distribution is normally in the 2nm to 9nm range. Image quality, magnification and instrument stability are readily determined. For resolution assessment, this standard offers a choice of crystalline orientation on static or low tilt stages. The thickness of the crystals can be calculated form the projected shape of the gold crystal. The background noise from the structure of the carbon support film helps in determining the operating transfer function.

EM-Tec TR2 TEM resolution standard graphitised carbon black

Graphitised carbon black provides a stable resolution standard for TEM resolution testing. The graphitised carbon black particles exhibit lattice planes following the contours of the particles. Lattice plane distance is 0.34nm. Supplied on a holey carbon film on a copper TEM grid