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Mass spectrometry is an analytical technique that identifies and quantifies a substance by ionizing the atoms and molecules of the substance and measuring the mass number and number of ions. Compared to other analytical techniques, mass spectrometry gives a great deal of information in a single analysis and so can be applied to various fields including proteomics for studying proteins.

Hamamatsu Photonics offers a wide range of devices such as ion detectors that are indispensable for mass spectrometers.

What does a mass spectrometer consist of?

A mass spectrometer mainly consists of an ionization section, an ion separation section, and a detection section. Mass spectrometers are grouped into various types according to the ionization and separation methods. The features required for devices in a mass spectrometer differ according to the type of the mass spectrometer.
We have developed and produced a wide range of products related to mass spectrometry, such as ion detectors that are key devices for the detection section, light sources for photoionization, and measurement support tools for users.

Quick reference guide for major detectors

Detector type		Mass spectrometers					Detector features
Detector type		Q-MS	TOF-MS	magnetic sector type MS	Ion trap-MS	ICP-MS	Detector features
Electron multipliers	R4146-10	×		×	×		Thin profile
	R6985-80	×			×		Positive/negative ion detection, internal conversion dynode
	R8811	×			×		Compact, Baking
	R8810	×			×		Compact, Low vacuum operation, Baking
	R13733	×				×	Wide dynamic range
	R2362	×		×	×		Wide effective area, Baking
	R14747	×		×	×		Compact, Low vacuum operation, Robustness
MCP	F9890, F9892 series		×				Wide effective area, High-speed response
	F12334 series		×				Compact, Wide effective area
	MIGHTION F14845-11		×				Wide effective area, High-speed response, Wide dynamic range
	F14844	×			×		Compact, Low vacuum operation, Detection of explosive materials

MCP(Microchannel Plate)

MCP (microchannel plate) is a two-dimensional sensor that detects electrons, ions, vacuum UV rays, X-rays and gamma rays, and amplifies the detected signals. Circular and rectangular MCPs are available in various dimensions, including easy-to-use MCP assemblies with pre-mounted electrode leads and supports. These MCPs are widely used in many types of analytical equipment such as for "mass spectroscopy", "semiconductor inspection" and "surface analysis".

The MCP assemblies are available with three different readout devices to meet application needs. The devices are of: (1) single anode (electrical output signal measurement within effective region), (2) multianode (electrical output signal measurement corresponding to signal input positions), and (3) phosphor screen (optical imaging of output signal). Select the output device that best matches your application.

From one to three stage MCPs can be selected for the assembly to obtain necessary gain, allowing uses in the analog mode (the output signal is measured as a continuous electrical current) or the counting mode (the low level signal can be measured by a binary processing).

MCP（微通道板）是偵測在真空中的電子，離子，真空紫外光，X射線和γ射線，並放大檢測到的信號的二維傳感器。Hamamatsu 提供各種尺寸的圓形及方型的MCP(微通道板),包含易於安裝的MCP模組。這些MCP廣泛應用於許多類型的分析設備，如“質譜分析”，“半導體檢測”和“表面分析”。

MCP組件提供三種不同的讀取裝置，以滿足應用需求;分別為器件有：（1）單陽極（有效區域內的電輸出信號測量），（2）多節點（與信號輸入位置對應的電氣輸出信號測量）和（3）熒光屏（輸出信號的光學成像）。

Electron multipliers (EM)

Electron multiplier tubes are also called electron multipliers or ion multipliers, and are used to detect electrons, ions, charged particles, vacuum ultraviolet rays, and soft X-rays, etc. Electron multiplier tubes have high gain yet low dark current and are therefore useful for measuring very small particles and low amounts of energy.

Hamamatsu Photonics 電子倍增管也被稱為電子倍增器或離子倍增器，用於檢測電子，離子，帶電粒子，真空紫外線，軟X射線等。Hamamatsu Photonics 電子倍增管具有高增益及低的暗電流，因此對於測量非常小的顆粒及低能量非常有幫助。

DIUTHAME®

DIUTHAME^® ensures high reproducibility and accuracy in your mass spectrometry tasks!

DIUTHAME is …

… an ionization-assisting tool developed by Hamamatsu for MALDI TOF-MS (time-of-flight mass spectrometry). DIUTHAME streamlines the ionization process in mass spectrometry by replacing the matrix used in MALDI, and totally eliminates the cumbersome pretreatment of samples needed up till now.

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