PHOTODIODE Si photodiode S7878 High sensitivity X-ray detector Features Applications l Ceramic scintillator for high sensitivity and reliability unlike CsI (ceramic scintillator: no deliquescence) l 5 × 5 element photodiode array l High sensitivity to X-rays: 1.8 times higher sensitivity than CWO l Less afterglow: lower than CsI <0.1 %/3 ms, <0.01 %/30 ms l Low crosstalk structure l X-ray fluorescence analysis l X-ray detection ■ Absolute maximum ratings (Ta=25 °C) Parameter Reverse voltage Operating temperature Storage temperature Symbol VR Max. Topr Tstg Value 10 -10 to +60 -20 to +70 Unit V °C °C ■ Photodiode electrical and optical characteristics (Ta=25 °C, per element) Parameter Spectral response range Peak sensitivity wavelength Symbol λ λp Photo sensitivity S Dark current Terminal capacitance ID Ct Condition λ=510 nm λ=λp VR=10 mV VR=0 V, f=10 kHz Min. 0.33 0.44 - Typ. 320 to 1000 800 0.38 0.51 1.5 20 Max. 10 - Unit nm nm A/W A/W pA pF ■ X-ray sensitivity (tube current: 1.0 mA, aluminum filter: t=6 mm, distance=830 mm) X-ray tube voltage Value Unit 120 kV 1.2 nA Note) Sensitivity values are just for your reference. Actual sensitivity values may vary depending on an equipment type and measurement conditions. 1 Si photodiode S7878 ■ Dimensional outline (unit: mm) (P2.54 ± 0.1) × 5 = 12.7 ± 0.1 17.7 MARK CATHODE 17.7 (PITCH: 1.5) a a1 b1 c1 d1 e1 a2 b2 c2 d2 e2 a3 b3 c3 d3 e3 a4 b4 c4 d4 e4 a5 b5 c5 d5 e5 c4 b4 a3 a5 b5 a4 a2 c5 c3 d4 d5 a1 b3 b1 b2 GND c1 d1 e1 b e4 e2 e3 d2 d3 e5 c2 (P2.54 ± 0.1) × 5 = 12.7 ± 0.1 ACTIVE AREA: 1.3 × 1.3 CATHODE BLACK RESIN GLASS EPOXY (29 ×) 0.45 Fe-Ni-Co ALLOY SOLDERING (3.18) 1.5 MAX. 0.6 SCINTILLATOR ARRAY 0.8 1.4 (1.4) 7.8 a-b Cross Section KMPDA0097EA 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. ©2004 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, http://www.hamamatsu.com 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) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 19, 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: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 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 2 Cat. No. KMPD1042E02 Jan. 2004 DN