这些光电倍增管在紫外区域具有高灵敏度。
选择光电倍增管时,必须选择由通过紫外光的玻璃材料制成的受光窗。
主题
日盲特性
具有所谓“日盲”特性的光电倍增管对超过 200 至 300 nm 的波长几乎没有灵敏度,因此主要用于真空环境中的 VUV 至 UV 测量。它们的窗材是 MgF2 晶体和石英玻璃。
推荐的光阴极面
· Cs-I(碘化铯)光阴极面
· Cs-Te(碲化铯)光阴极面
用途
· 发光光谱
· 学术研究
· 等离子监测
· 原子荧光光谱测定
可见光区域包括可由人眼看到的波长约 350 nm 到 750 nm 的光。
主题
辐射测量
光电倍增管和 NaI(碘化钠)闪烁体组合是最常见的辐射测量技术之一。具有半透明光阴极面的光电倍增管被广泛使用,因为它们的灵敏度与 420 nm 光波长附近的 NaI 闪烁体的发射光谱相匹配。一些半透明的光阴极面可以通过对制造工艺的微小修改来提高对长波长的灵敏度。
推荐的光阴极面
•双碱光阴极面
•超级双碱光阴极面
•超双碱光阴极面
•绿光灵敏度增强双碱光阴极面
用途
•发光光谱
•免疫分析仪
•硫氧化物仪表
•辐射测量
此光谱区域包括人眼可见的波长 350 nm 至 800 nm 的光。我们提供一系列标准光电倍增管,具有从可见光至近红外区域的宽范围光谱灵敏度特性。
主题
GaAsP(砷化镓磷化物)光阴极面
这是用铯活化的结晶光阴极面。它在可见光区域具有高量子效率。与其他主要由碱金属组成的光阴极面相比,这种光阴极面在强光照射下可能会变质,因此需要小心处理。
推荐的光阴极面
•多碱光阴极面
•GaAsP(砷化镓磷化物)光阴极面
•GaAs(砷化镓)光阴极面
用途
•流式细胞仪
•标本检测装置
•分光光度计
•氮氧化物仪表
•激光显微镜
近红外光具有低能量和高渗透性等特点,非常适合我们日常生活中的各种任务,例如远程控制各种电器和设备。对近红外 (NIR) 光具有高灵敏度的光电倍增管用于长距离光度测定和其他定制任务等特殊用途。
主题
InGaAs(砷化铟镓)光阴极面
InGaAs 光阴极面是一种与 GaAsP 相同的晶体光阴极面。然而,与 GaAsP 光阴极面对可见光具有高灵敏度不同,InGaAs 光阴极面可检测 950 至 1700 nm 的近红外光。与其他主要由碱金属组成的光阴极面相比,InGaAs 光阴极面在强光照射下可能会变质,因此需要小心处理。该光阴极面还具有高暗电流,因此在运行期间必须制冷。
推荐的光阴极面
•InGaAs(砷化铟镓)光阴极面
•InP/InGaAsP(磷化铟/砷化铟镓)光阴极面
用途
•分光光度计
•LiDAR(激光雷达)
•CL(化学发光)测量
•PL(光致发光)测量
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