circular mcp and assembly series 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. ?999 hamamatsu photoni cs k.k subject to local technical requirements and regulations, availability of products included in this promotional material may var y. please consult with our sales office. a microchannel plate (mcp) is a secondary-electron mul- tiplier which detects and amplifies electrons in two-dimen- sions. the mcp is sensitive not only to electrons but to ions, vacuum ultraviolet light, x-rays and g -rays, making it useful in a wide range of detection applications. hamamatsu has available seven types of circular mcps, ranging in outer diameter from 18mm to 114mm. mcp as- semblies with electrode leads are also available to facilitate use of the mcps. these mcp assemblies offer three types of read-out devices; a phosphor screen (optical image con- version), a multi-anode (electrical output signals responding to the position of the incident signals), and a single-anode (an electrical output signal within the effective area), provid- ing a variety of readout functions to handle a range of appli- cations. from one to three mcps can be selected as re- quired to provide the necessary electron gain. these mcps and mcp assemblies are finding wide appli- cation in fields including image intensifiers, fast time re- sponse photomultiplier tubes, and analytical instruments. features ? sensitive to electrons, ions, vuv lights, x-rays and g -rays ? two-dimensional image intensification ? fast time response ? immunity to magnetic fields ? small size and lightweight applications ? analytical instruments ? electron beam measuring system (ebms) ? fim, ap-fim ? esca ? mass spectrometer (ms) ? tof-ms ? leed, meed, etc. ? electron tube ? image intensifier ? fast time response pmt ? streak camera ? cosmic measurement ? detection of plasma ions, soft x-rays and vuv lights ? high energy physics ? detection of ions, electrons, positrons, high energy particles and x-rays
circular mcp series mcp dimensional outlines (unit: mm) a b c indicator effective area input side output side electrode d q tmcpa0025eb outer diameter electrode diameter effective diameter thickness channel diameter channel pitch bias angle open area ratio electrode material parameter type no. 17.9 17 14.5 0.48 12 15 8 24.8 23.9 20 0.41 10 12 5,15 32.8 31.8 27 8,12 38.5 36.5 32 60 inconel 49.9 49 42 0.24 6 7.5 13 0.48 12 15 5,8,15 0.41 10 12 0.48 12 15 0.48 12 15 8 86.7 84.7 77 114 112 105 mm mm mm mm m m degrees % m w a/cm 3 v c c f2395 unit f1942 -04 f1217 f1208 -01 f1552 f1094 -09 f1551 -01 -07 -01 -09 -01 1.00 25 31 8 a b c d q gain plate resistance dark current max. linear output signal 100 to 700 50 to 500 30 to 300 more than 10 4 20 to 200 less than 5 10 -13 up to 7% of the strip current 10 to 200 10 to 100 5 to 50 supply voltage ambient temperature baking temperature 1000 (channel diameter: 6 m m, 10 m m, 12 m m): 1200 (channel diameter: 25 m m) -50 to +70 400 -50 to +30 electrical characteristics (supply voltage: 1000v, vacuum: 1.3 10 -4 pa (1 10 -6 torr), ambient temperature: +25 c) maximum ratings this indicator shows the mcp input side and the direction of channel bias. the strip current is the current which flows along the channel wall when a voltage is applied between the mcp input and output and is given by applied voltage/plate resistance. at a vacuum of 1.3 10 -4 pa (1 10 -6 torr) or less. consult us for more details on mcp dimensions and tolerances.
relative output accumulated charge of output signal (c / cm 2 ) supply voltage: 1000v output current density: 50na/ 15mm 10 -4 10 -3 10 -2 10 -1 0.5 0 1.0 600 10 2 10 3 10 4 10 5 800 1000 supply voltage (v) gain operating principle as shown in the figure, when a voltage v d is applied across the input-side and output-side electrodes of the mcp, a po- tential gradient is built up along the channel direction. if an incident electron strikes an inner wall on the input side, a number of secondary electrons are emitted. these second- ary electrons are accelerated by the potential gradient and travel along a parabolic path determined by the initial veloc- ity. they then collide with the opposing wall surface, causing secondary electrons to be emitted again. in this manner, the electrons collide repeatedly within the channel as they pass towards the output side. the result is a large multiplication of the incident electron. mcp configuration channel wall strip current v d output electrons primary electron tmcpc0002ec gain and life characteristics ? gain vs. supply voltage ? life tmcpb0031eb tmcpb0030ec
3 3 e d a b c 45 mcp-in lead anode or phosphor screen lead 4- 4.5 4- 3.5 20 mcp-out lead insulator(al 2 o 3 ) nut m2(sus304) substrate (sus304) read-out device degassing space lead (sus) 1.0 mcp l f g k j h read-out replacement ring assembly dimensions (unit: mm) tmcpa0026eb demountable type series (the mcp and the read-out device can be easily replaced) mcp assemblies note: sus and sus304 are stainless steels of japanese industrial standards (jis) code. assembly outer diameter mounting screw hole pitch insulator outer diameter assembly screw pitch mcp effective diameter readout device effective diameter maximum height replacement ring screw diameter for readout device replacement ring inside diameter for readout device distance from bottom of substrate to insulator surface distance from mcp input surface to insulator surface a b c d e f g h j k l parameter code 54 46 34 26 14.5 10 15 m19 13 (number of mcp stages) single-stage: 10.9 two-stage : 11.9 three-stage : 11.9 (number of mcp stages) single-stage: two-stage : three-stage : 61 53 41 33 20 17 15 m26 20 69 61 49 41 27 24 15 m33.8 27 75 67 55 47 32 30 15 m39.5 33 10 m m 2.9 3.5 3.1 86 78 66 58 42 40 15 m51 44 (channel diameter) 12 m m 2.8 3.3 2.9 123 115 103 95 77 75 17 m88 78 12.9 14.4 15.9 25 m m 3.8 4.3 4.8 f2226 unit f2225 f2224 f2223 f2222 f2221 mm mm mm mm mm mm mm mm mm mm mm mm mm mm
without anode with anode eyelet eyelet eyelet (bottom view) mcp-in lead: 4pcs. mcp-out lead: 2pcs. two eyelets eyelet 30 0.7lead 0.7 mcp a b c d 30min. eyelet 0.7lead 0.7 anode a b c e 30min. mcp-out electrode mcp-in electrode eyelet eyelet (bottom view) mcp-in lead: 4pcs. mcp-out lead: 2pcs. anode lead: 2pcs. two eyelets eyelet 30 mcp assembly dimensions (unit: mm) tmcpa0027eb non-demountable type series (compact and lightweight) assembly outer diameter lead pin circle mcp effective diameter assembly height parameter type no. 27 22.5 14.5 34 29.5 20 42 37.5 27 49 44 32 62 56 40 f1217 unit f1208 f1552 f1094 f1551 a b c mm mm mm mm mm (number of mcp stages) single-stage: 3 two-stage : 4.2 three-stage : 4.2 (number of mcp stages) single-stage: 4.5 two-stage : 5.7 three-stage : 5.7 d without anode e with anode
10 4 10 3 600 800 1000 1200 supply voltage per stage (v) 10 5 10 6 10 7 10 8 single- stage two- stage three- stage gain pulse height two-stage three-stage relative counts mcp assemblies characteristics of mcp assemblies ? typical gain and pulse height distribution characteristics comparision for different stage mcp tmcpb0033eb ? typical pulse height distributions for two-and three-stage mcp tmcpb0034ea at a vacuum of 1.3 10 -5 pa (1 10 -7 torr) and an ambient temperature of +25 c. the phosphor screen read-out type assemblies should be operated in a vacuum below 2.6 10 -5 pa (2 10 -7 torr). the phosphor screen read-out type is not available for non-demountable type or three-stage series. dark noise lower than the valley of pulse height distribution for the signal is not taken into account. channel diameter read-out device parameter mcp 10 to 25 (refer to the table on page 2.) without read-out device, with single anode, multianode or phosphor screen (p-11, p-20, p-47) two-stage three-stage single-stage ( m m) (%) gain dark noise pulse height resolution max. linear output signal 10 6 less than 3 s -1 /cm 2 (cps/cm 2 ) less than 120 up to 7% of the strip current 10 7 to 10 8 less than 3 s -1 /cm 2 (cps/cm 2 ) less than 80 10 4 less than 5 10 -13 a/cm 2 (v) (v) (v) (v) ( c) mcp supply voltage mcp -out ? anode voltage mcp -out ?phosphor screen voltage substrate ?other terminals voltage baking temperature 2000 1000 4000 7000 350 3000 1000 530 to 560 50 to 2000 410 0.08 450 460 wavelength at peak emission decay time <10%> parameter phosphor type p-20 p-47 p-11 (nm) ( m s) electrical characteristics (supply voltage: 1000v per stage, vacuum: in the order of 1.3 10 -5 pa (1 10 -7 torr), ambient temperature: +25 c) general phosphor screen emission characteristics maximum ratings
? pulse height resolution tmcpb0035ea the pulse height resolution is defined as follows. pulse height resolution = 100 (%) fwhm (full width at half maximum) pulse height peak: a fwhm pulse height counts a h/2 h wiring examples (for assembly types, either mcp-in, mcp-out, anode or phosphor screen can be ground potential) two-stage mcp anode 2m w 0.1m w +2.1kv max. -2kv max. -0.1kv e e c (3kv) amp. a two-stage mcp anode r two-stage mcp 2m w 4m w -6kv max. -2kv max. +4kv max. e e e e two-stage mcp phosphor screen phosphor screen tmcpc0005ec tmcpc0007ec
tmcp1007e04 dec. 1999 ip printed in japan (500) circular mcp and assembly series ordering information (type no. designation) ? hamamatsu accepts order for special mcps not in- cluded in the standard line. please specify the shape, effective dimensions, thickness and the other param- eters. ? feel free to consult us on mcps with an aperture (for use with reflecting electron microscopes), csl coating (to increase quantum efficiency in the vuv to x-ray range), aluminum coating (to prevent ion feedback), mgo coating (to obtain high gain) and other special type mcps. ? for multianode types, specify the desired anode pat- tern. ? assemblies with a phosphor-coated fiber plate are available to enable fiber coupling to solid state imag- ing devices (ccd and mos linear image sensor) and position sensitive detectors (psd). ? assemblies with the mcp, read-out device and termi- nals mounted on vacuum flanges are also available. special mcps and assemblies ? avoid touching the mcp or its assembly parts with bare hands. ? handle the mcp only in a clean room since dust and humidity may adversely affect mcp characteristics. ? the mcp should be kept in vacuum or nitrogen atmo- sphere if a long period of storage is contemplated. ? when outgassing from the mcp occurs, baking the mcp at 350 c maximum in an evacuating system is recommended. in addition electron bombarding may be effective. ? the mcp should be operated in vacuum below 1.3 10 -4 pa (1 10 -6 torr). precautions for use no suffix: without read-out device s: single anode m: multianode p: phosphor screen specify one from p-11, p-20 and p-47 9: 10 m m 1: 12 m m 4: 25 m m 1: single-stage 2: two-stage 3: three-stage second suffix: channel diameter third suffix: read-out device f2224-21p first suffix: number of mcp mounted assembly type note: in ordering the mcp only, specify only the type no. of mcp 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, fa x: (1)908-231-1218 germany: hamamatsu photonics deutschland gmbh: arzbergerstr. 10, d-82211 herrsching am ammersee, germany, telephone: (49)8152-375-0, f ax: (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, teleph one: 44(20)8-367-3560, fax: 44(20)8-367-6384 north europe: hamamatsu photonics norden ab: smidesv?gen 12, se-171-41 solna, sweden, telephone: (46)8-509-031-00, fax: (46)8-509-031-01 italy: hamamatsu photonics italia: s.r.l.: strada della moia, 1/e, 20020 arese, (milano), italy, telephone: (39)02-935 81 733, fax: (39)02-935 81 741 homepage url http://www.hamamatsu.com
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