MCP (MICROCHANNEL PLATE) ASSEMBLY

OVERVIEW Microchannel plate (MCP) is a two-dimensional sensor that detects electrons, ions, VUV rays, X-rays and gamma rays in a vacuum, and amplifies the detected signals. 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 two different readout devices to meet application needs. The devices are of: (1) single anode (electrical signal output), and (2) phosphor screen (visible light output). Select the ideal output device for your application. From one to three...

CHARACTERISTICS MCP gain characteristics 108 Pulse height distribution (PHD) PULSE HEIGHT (CHANNEL NUMBER) 2.0 Atmosphrric storage test RELATIVE CHANGE IN FLATNESS (µm) Robust MCPs have durability against various environmental conditions. They are less likely to warp or crack and are very stable in shape even when exposed to air and humidity for long time, minimizing the time jitter that affects the mass resolution of TOF-MS (Time-of-flight mass spectrometry). Output waveform EFFECTIVE AREA: 27 mm MCP assemblies for TOF measurement are available with a fast response time ranging from 450 ps to...

LARGE OAR: FUNNEL TYPE Funnel MCPs have a large open area ratio (OAR) by making the input side of each channel into the shape of a funnel. This allows more signals to enter each channel than before, enabling effective and accurate signal detection. Cross-sectional view Cross-sectional view Detects more than 90% of signal!! About 40% of signal cannot be detected. Fluorescence output intensity image (pseudo color display) Fluorescence output intensity profile 1000 900 DISTANCE FROM CENTER Type No. Parameter Channel diameter Effective area Bias angle

MCP SPECIFICATIONS AND DIMENSIONAL OUTLINES Type No. Parameter Electrode area B Effective area C Channel diameter Channel pitch Open area ratio Electrode material Gain (Min.) 2 Maximum linear output 2 Supply voltage 3 Operating ambient temperature 3 NOTE: 1The F1551-01, F1094-01, F1552-01, F1208-01 and F1217-01 are also available with a center through-hole (6 mm diameter). 2Supply voltage: 1.0 kV, vacuum: 1.3 × 10-4 Pa, operating ambient temperature: +25 °C 3Vacuum: 1.3 × 10-4 Pa 4Strip current is the current that flows through channel walls when a voltage is applied between MCP IN and OUT. It...

MCP ASSEMBLY SELECTION GUIDE BY PURPOSE Higher pressure Signal measurement Higher pressure measurement Miniature mass spectrometer (explosive / drug trace detection) G Portable devices G Measures the amount of signal Very small amount ion detection Electron detection G VUV detection G Soft X-ray detection G G Ion detection at higher pressure ×10-7 Center hole ION, X-RAY, etc. This MCP assembly with triode structure supresses ion feedback noise and ensures stable operation even in a higher presuure environment of 1 Pa. This is an innovative ion detectors that can be mounted in compact desktop...

Two-dimensional detection Measures the difference between the arrival times Measures two-dimensional distribution and incident position of signals Mass spectrometry (TOF-MS, MALDI-TOF) G Observation of high-speed phenomena G Fast response Mass spectrometry (TOF-MS, imaging MS) Electron spectroscopy for chemical analysis (ESCA) G Acceleration beam monitor G Velocity map imaging (VMI) G Phosphor screen output Output waveform · Ion-electron conversion · Multiplication of small current (Gain: 1 to 104) PHOSPHOR SCREEN · Multiplication of large current Electrons LCross section Using an anode specially...

MCP ASSEMBLY SPECIFICATIONS AND DIMENSIONAL OUTLINES (Unit: mm) F14844 Effective area MAXIMUM VOLTAGE RATING MCP IN – MCP OUT : 2.0 kV MCP OUT – ANODE : 0.1 kV ANODE – SUBSTRATE: 2.1 kV * SHIELD, MCP IN, SUBSTRATE INTERNAL CONNECTION SUBSTRATE ANODE LEAD Pulse width (FWHM) (Typ.) (ps) 550 Effective area NOTE: 1MCP-in: -6 kV, MCP: 600 V, AD: -350 V 2±10 % 3when connected to 50 Ω, ±10 % input 15° * P.C.D. (Pitch Circle Diameter) CIRCUIT DIAGRAM ASSEMBLY MCP

Refer to “Anode type” below 1 stage MCP : 1 × 104 2 stage MCP : 1 × 106 3 stage MCP : 1 × 107 Pulse height resolution (Max.) (%) 1 stage MCP: 1.0 2 stage MCP: 2.0 3 stage MCP: 3.0 MCP-OUT to anode supply voltage (kV) Single anode: 0.5 Phosphor screen : 3.0 to 4.0 NOTE: 1Supply voltage: 1.0 kV/MCP, vacuum: 1.3 × 10-4 Pa, operating ambient temperature: +25 °C 2Vacuum: 1.3 × 10-4 Pa 6 MCP-IN LEAD ELECTRODE LEAD Anode type Description Assembly outer size Mounting screw hole pitch Insulator outer size Effective area Effective area of readout device Maximum height Distance from INSULATOR PEEK* to insulator...

MCP ASSEMBLY SPECIFICATIONS AND DIMENSIONAL OUTLINES (Unit: mm) Type No. MCP center dead area (mm) Pulse height resolution (Max.) (%) MCP-OUT to anode supply voltage (kV) NOTE: 1Supply voltage: 1.0 kV/MCP, vacuum: 1.3 × 10-4 Pa, operating ambient temperature: +25 °C 2Vacuum: 1.3 × 10-4 Pa F4655-14 * P.C.D. (Pitch Circle Diameter) MCP-IN LEAD CHANNEL BIAS DIRECTION ANODE MCP-OUT LEAD PROTECTION ELECTRODE FOR CHARGING-UP (SAME POTENTIAL AS SUBSTRATE) ANODE LEAD Perform the vacuum baking under 150 °C while keeping the evacuation system at a vacuum pressure below 1.3 × * P.C.D. (Pitch Circle Diameter)...

Pulse width (FWHM) (ps) Pulse height resolution (Max.) (%) MCP-OUT to anode supply voltage (kV) NOTE: 1Supply voltage: 1.0 kV/MCP, vacuum: 1.3 × 10-4 Pa, operating ambient temperature: +25 °C 2Vacuum: 1.3 × 10-4 Pa MCP-IN LEAD MCP-OUT LEAD -2 kV Max. Power supply capable of floating operation 1SMA connector type is also available. IN When divider circuit is used MCP-IN LEAD SIGNAL SMA ANODE LEAD MCP-OUT LEAD +2 kV +500 V (500 V operation is recommended) Max. Max. Power supply Power supply capable of capable of floating floating operation operation -10 kV to +10 kV IN When divider circuit is used...