WIDE DYNAMIC RANGE MCP ASSEMBLY FOR HELIUM LEAK DETECTOR PRELIMINARY DATA MAY 1998 F4655-01 Compact MCP assembly optimized for helium leak detector and mass spectrometer using a wide dynamic range MCP The F4655-01 is a very compact MCP assembly developed for helium leak detector as well as mass spectrometer. It uses a wide dynamic range MCP for extracting a high output current of 10µA* with high stability. * : At an MCP resistance of 20MΩ TMCPF0089 FEATURES APPLICATIONS Wide dynamic range Compact and lightweight Good cost performance Helium leak detector Mass spectrometer SPECIFICATIONS GENERAL Parameter Assembly Outer Diameter Effective Diameter Maximum Height MCP Channel Diameter Number of MCP Stages A Value 30.0 14.5 8.5 12 1A Unit mm mm mm µm - Figure 1: MCP Output Linearity Characteristiscs 150 TMCPB0080EA Two-stage MCP type is also available on request. Wide Dynamic Range MCP (1 stage) MCP Supply Voltage (In-Out) MCP-Out to Anode Voltage 1 0.5 MCP-In: -1.5 MCP-Out: -0.5 Anode: GND -4 -6 6.7×10 (5×10 ) - B - B - B Electric Potential at Each Terminal Operating Vacuum Condition Baking Temperature Baking Time Baking Vacuum Condition B kV kV kV Pa (Torr) °C h Pa (Torr) RELATIVE GAIN (%) MAXIMUM RATINGS (Absolute Values) 100 CONVENTIONAL MCP (2 stage) 50 Wide Dynamic Range MCP (2 stage) Baking cannot be performed. -4 -6 CHARACTERISTICS (at 1.3×10 Pa (1×10 Torr), Ta=+25°C) Gain Plate Resistance Dark Current 4 1×10 5 to 50 0.5 MΩ 2 pA/cm 0 10-8 10-7 10-6 10-5 10-4 OUTPUT CURRENT (A) Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. © 1998 Hamamatsu Photonics K.K. WIDE DYNAMIC RANGE MCP ASSEMBLY FOR HELIUM LEAK DETECTOR F4655-01 Figure 2: Dimensional Outlines (Unit: mm) 18 8.5 14.5 7.5 EFFECTIVE AREA ANODE LEAD 3.5 0° 4.5 MCP-OUT LEAD 6 15 12.5 12 0° SUBSTRATE 3 - M1.6 P.C.D. 21.5 MCP-IN LEAD SINGLE MCP PROTECTION ELECTRODE FOR CHARGING-UP (SAME POTENTIAL AS SUBSTRATE) INSULATOR ANODE 0.5 INSULATOR 3 3 - 2.2 P.C.D. 26 TMCPA0043EA HAMAMATSU PHOTONICS K.K., Electron Tube Center 314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193 Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone:(1)908-231-0960, Fax:(1)908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone:(49)8152-375-0, Fax:(49)8152-2658 France: Hamamatsu Photonics France: S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone:(33)1 69 53 71 00, Fax:(33)1 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone:(44)181-367-3560, Fax:(44)181-367-6384 North Europe: Hamamatsu Photonics Norden AB: FŠršgatan 7, S-164 40 Kista, Sweden, Telephone:(46)8-703-29-50, Fax:(46)8-750-58-95 Italy: Hamamatsu Photonics Italia S.R.L.: Via della Moia, 1/E 20020 Arese, (Milano), Italy ,Telephone: (39)2 935 81 733 Fax: (39)2 935 81 741 TMCP1020E01 MAY 1998 SI Printed in Japan (500)