Eiger2 R 500K X射线检测器的X射线应用简介

Dectris是混合光子计数（HPC）X射线检测的全球领导者。去年，Azom与Dectris产品经理XRDMarcusMüller进行了交谈，该产品经理关于新推出的Eiger2 R 500K探测器。最近，宣布了同一系列的另外两个探测器。什么是新的探测器，在X射线测量中会产生什么区别？Eiger2 R 500K同时成功了，用户对此有何看法？我们再次与马库斯进行了交谈，以了解更多信息。

What are the new detectors that you recently announced?

We announced the EIGER2 R 1M and 4M detectors at the International Small Angle Scattering Conference in Michigan. The new detectors complement the previously released EIGER2 R 500K to form a complete series with a detector for every need.

The major difference between the three models is the size of the sensitive area and cooling. The EIGER2 R 500K features an active area of 77 by 39 millimeters in a highly compact housing and is air cooled. The 1M and 4M feature active areas of 77 by 80 and 155 by 162 millimeters, respectively. Both use water cooling to stabilize their operating temperature at 23°C.

您将哪些X射线应用程序定位为新检测器？

We expect the new detectors to be mostly used in small-angle X-ray scattering (SAXS) and single-crystal diffraction in the home lab. However, they excel in any X-ray application where the lowest possible background, highest efficiency, and the best possible data quality are crucial. In particular, for SAXS,EIGER2 Rhas an ace up its sleeve: The detectors can be operated in a vacuum to minimize scatter and absorption from air and windows.

EIGER2 Family of Products.Image credit: Dectris Ltd.

Eiger2 R 1M是高度用途的检测器。它足够大，可以用于单晶衍射，包括小分子和大分子和萨克斯。它还为2D XRD提供了高端检测器解决方案。Eiger2 R 4M是我们在家庭实验室中用于X射线衍射和散射的旗舰探测器。它的大尺寸可提供无与伦比的收集效率，并允许您解决最雄心勃勃的项目。

自从我们上次谈论Eiger2 X射线探测器以来已经一年了。您能提醒我们该探测器家庭有什么区别吗？

像所有Dectris探测器一样，Eiger2基于混合光子计数（HPC）技术。这使Eiger2领先于许多其他X射线检测器，因为HPC消除了检测器的背景并最大程度地发出了噪声信号。由于直接检测，该技术的分辨率也比基于闪烁的X射线检测要高得多。这些是所有HPC探测器共有的巨大好处。

What sets EIGER2 apart from other HPC detectors is the readout chip we designed at DECTRIS. It goes beyond the performance of the successful EIGER detectors in three important ways.

• EIGER2 provides two energy discriminating thresholds that enable the suppression of high-energy background such as cosmic radiation. This is great for laboratory applications requiring long exposure times such as SAXS because the weakest signals can be measured accurately.
• Two 16-bit digital counters are associated with each of the two energy discriminating thresholds in every pixel. This means you can collect successive images without any dead time and still benefit from the highest dynamic range made possible by dual-energy discrimination.
• Thanks to DECTRIS Instant Retrigger Technology, EIGER2 overcomes the paralysis of regular counting detectors at high rates. This provides superior count rate performance. Even the highest intensities can be measured accurately, no matter what laboratory X-ray source and sample you are working with.

The EIGER2 R 500K is now available for about a year. Has it become a success and what do users like about it?

The EIGER2 R 500K has already found its way to many customers and users. They appreciate the technological advantages that I mentioned previously. For a good number of users, the EIGER2 R 500K is the first HPC pixel detector they work with. These users are often thrilled about the data quality, dynamic range, and resolution which is much better than what they were used to.

What users like specifically about theEiger2 R 500K它的紧凑尺寸，多功能外形和空气冷却。这为我们的OEM合作伙伴打开了许多可能性，以将探测器集成到其工具中以及想要设计和实现自己的设置的客户中。

当然，我们的OEM合作伙伴为Eiger2 R 500K的成功做出了巨大贡献。布鲁克·阿克斯（Bruker Axs）完成了出色的工作，将检测器无缝地集成到其D8 XRD平台中。安东·帕尔（Anton Paar）在其SAXSPOINT 2.0和SAXSPACE系统中迅速将其作为蜡模块和主SAXS检测器进行了调整

Eiger2 R 500K还有什么新鲜事物？

正如我之前提到的，将检测器放置在真空中，可以最大程度地减少空气和窗户的散射和吸收。因此，我很高兴地说，我们现在还可以提供具有可选真空兼容性的Eiger2 R 500K，与较大的兄弟姐妹相同。

我们的读者在哪里可以找到有关新的Eiger2 R探测器系列的更多信息？

可以提供更多信息和探测器规格our website。We will also be happy to answer questions and give advice about which detector model is best for you. Just contact us at[电子邮件保护]with a short description of what kind of X-ray experiments you are up to.

关于马库斯·穆勒

Marcus Müller, PhD is the Product Manager XRD at DECTRIS and is responsible for their OEM partners.