R4220 HAMAMATSU | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 4

Technical content

Very High Cathode Sensitivity with Low Noise Photocathode GENERAL

FEATURES

Parameter Description/Value Unit Spectral Response Hamamatsu R4220 features extremely high cathode sen- sitivity, high Gain, and low dark current. Variant tube (R4220P) specially selected for photon counting application is also available. The R4220 is useful for fluorescence, chemilumines- cence, Raman spectroscopy and low light level detec- tion. Wavelength of Maximum Response 185 to 710 nm nm Photocathode MateriaI 410 Structure 4p FAnode to Last Dynode 6p FAnode to All Other Electrodes Minimum Effective Area Low noise bialkali Secondary Emitting Surface Low noise bialkali mm Window Material Weight 8 24 g45 Dynode Direct Interelectrode Capacitances Base SuitabIe Socket Assembly UV glass Circular-cage Number of Stages 9 11-pin base JEDEC No. B11-88 E717–21 (option) SuitabIe Socket E678–11A (option) lnformation furnished by HAMAMATSU is believed to be reliabIe. However, no responsibility is assumed for possibIe inaccuracies or ommissions. Specifications are subject to change without notice. No patent right are granted to any of the circuits described herein. © 1994 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. R4220P (For Photon Counting) PHOTOMULTlPLlER TUBES R4220 High Cathode Sensitivity High Anode Sensitivity (at 1000V) 185 to 710 nm 0.2nA

100 A/lm

8.4 105 A/W Figure 1: Typical Spectral Response 100 0.1 0.01 100 200 300 400 500 600 700 800 WAVELENGTH (nm) CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) QUANTUM EFFICIENCY CATHODE RADIANT SENSITIVITY TPMSB0010EA

MAXIMUM RATINGS (Absolute Maximum Values) Parameter Value Supply Voltage Between Anode and Cathode Between Anode and Last Dynode 1250 250 0.1 Vdc Vdc mAAverage Anode Current A Unit CHARACTERISTlCS (at 25 ) NOTES Parameter Min. Typ. Typ. Max. R4220 for General Purpose R4220P for Photon Counting Cathode Sensitivity Anode Dark Current F Anode Dark CountsF Anode Sensitivity After 30minutes Storage in the darkness 0.2 2.0 Anode Current Stability L Averaged over any interval of 30 seconds maximum. The light source is a tungsten filament lamp operated at a distribution tem- perature of 2856K. Supply voltage is 150 volts between the cathode and all other electrodes connected together as anode. The value is cathode output current when a blue filter(Corning CS-5-58 polished to 1/2 stock thickness) is interposed between the light source and the tube under the same condition as Note B. Measured with the same light source as Note B and with the anode-to- cathode supply voltage and voltage distribution ratio shown in Table 1 be- low. Measured with the same supply voltage and voltage distribution ratio as Note D after removal of light. Measured at the voltage producing the gain of 1 10 ENI is an indication of the photon-limited signal-to-noise ratio. It refers to the amount of light in watts to produce a signal-to-noise ratio of unity in the output of a photomultiplier tube. where q = Electronic charge (1.60 10 -19 coulomb). ldb = Anode dark current(after 30 minute storage) in amperes. G = Gain. f = Bandwidth of the system in hertz. 1 hertz is used. S = Anode radiant sensitivity in amperes per watt at the wave- length of peak response. The rise time is the time for the output pulse to rise from 10% to 90% of the peak amplitude when the entire photocathode is illuminated by a delta function light pulse. The electron transit time is the interval between the arrival of delta function light pulse at the entrance window of the tube and the time when the anode output reaches the peak amplitude. In measurement, the whole photo- cathode is illuminated. Also called transit time jitter. This is the fluctuation in electron transit time between individual pulses in the signal photoelectron mode, and may be defined as the FWHM of the frequency distribution of electron transit times. Hysteresis is temporary instability in anode current after light and voltage are applied. ENI = S 2q.ldb.G . f Current Hysteresis Voltage Hysteresis 0.1 1.0 Radiant at 410nm (Peak) 70 BlueC 8 Anode Pulse Rise Time H 2.2 Electron Transit Time J 22 Transit Time Spread (TTS) K 1.2 Time Response D Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 P Distribution Ratio 1 111111111 SuppIy Voltage : 1000Vdc K : Cathode, Dy : Dynode, P : Anode Quantum Efficiency at 300nm (Peak) 80 100 Gain E ENI(Equivalent Noise Input) G Unit PHOTOMULTlPLlER TUBES R4220, R4220P (For Photon Counting) Luminous B Radiant at 400nm 8.4 10 5 Luminous D 12001000 3.30 10-17 Min. Max. 0.2 0.5 nA 0.1 1.0 70 mA/W

8 A/lm-b

2.2 1.2 ns ns ns 80 100 A/lm 23 % 8.4 105 A/W

1200 A/lm1000

1.2 107 1.2 107 10 50 cps 3.30 10-17 W Table 1:Voltage Distribution Ratio Hysteresis = 100(%) lmax. li lmin. (1)Current Hysteresis The tube is operated at 750 volts with an anode current of 1 micro-ampere for 5 minutes. The light is then removed from the tube for a minute. The tube is then re-illuminated by the previous light level for a minute to measure the variation. (2)Voltage Hysteresis The tube is operated at 300 volts with an anode current of 0.1 micro-ampere for 5 minutes. The light is then removed from the tube and the supply voltage is quickly increased to 800 volts. After a minute, the supply voltage is then reduced to the previous value and the tube is re-illuminated for a minute to measure the variation. TPMSB0002EA TIME max.l min.lil ANODE CURRENT 0 5 6 7 (minutes)

FEB. 1995 Figure 8: Dimensional Outline and Basing Diagram(Unit: mm) Figure 10: Socket E678-11A (Optional) Figure 9: D Type Socket Assembly E717-21 (Optional) BOTTOM VIEW (BASING DIAGRAM) Warning–Personal Safety Hazards Electrical Shock–Operating voltages applied to this device present a shock hazard. Hamamatsu also provides C4900 series compact high voltage power supplies and C6270 series DP type socket assemblies which incorporate a DC to DC converter type high voltage power supply. R 1 to R10 : 330k C 1 to C3 : 0.01 F POTTING COMPOUND TACCA0002ED R to R10 C1 to C3 : 330k : 0.01 F 3.5 33.0 0.3 49.0 0.3 38.0 0.3 4.8 41.0 0.5450 10 31.0 0.5 HOUSING (INSULATOR) R10 DY9 DY8 DY7 DY6 DY5 DY4 DY3 DY2 DY1 SIGNAL GND SIGNAL OUTPUT RG-174/U (BLACK) –HV AWG22 (VIOLET) P K POWER SUPPLY GND AWG22 (BLACK) SOCKET PIN No.PMT PHOTOMULTlPLlER TUBES R4220, R4220P (For Photon Counting) TPMSA0001EA 5 76 KDY1 DY2 DY3 DY4 DY5 DY6 DY7 DY8 DY9 P DIRECTION OF LIGHT 28.5 1.5 8MIN. PHOTOCATHODE 24MIN. 49.0 2.5 80MAX. 94MAX. 11 32.2 0.5

11 PIN BASE

JEDEC No. B11-88 TACCA0064EA 3.5 418 HAMAMATSU PHOTONICS K.K., Electoron Tube Center 314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 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 Limted: 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: Färögatan 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