Line Sources
Cathodeon The Ultimate Source Cathodeon LINE SOURCES
CONTENTS
1 Mercury vapour lamps 4 Black light blue lamp 5 Germicidal lamp 6 Spectral calibration line sources 8 Line sources 1 Line Sources Cathodeon
FEATURES Fig 3 Spectral Irradiance Cathodeon manufactures a high pressure mercury vapour 3500 Ballast 125w
546.1 TRMS Current 1150ma MERCURY lamp type HPK for use in scientific instrumentation and other 3000 365.0 TRMS Voltage 127V applications requiring high stability UV radiation combined Band Width 1nm 435.8
1 @ 300mm 2500 with an accurate position for the arc. -
2/nm VAPOUR - 2000 In contrast to the HG2 low pressure lamp the line output 313.2 from the high pressure lamp provides maximum energy at 1500 576.9 579.0 302.1 LAMPS 365nm with substantial radiation also at 435, 313, 253 and 404.6 1000 265.2 404nm. In addition there is a continuum from 200 to 600nm 253.7 297.5
500 280.4 peaking at 260nm with approximately 20% of the maximum 334.1 Spectral Irradiance mWm energy measured in the line spectrum. 0 200 250 300 350 400 450 500 550 600 650 700 Wavelength (nm) Fig 1 HPK 125W Lamp
POWER SUPPLY The Cathodeon Ballast C440 is available to drive the HPK mercury lamp
ORDERING CODES PRODUCT ORDERING CODE LAMP MOUNTING HPK high pressure mercury lamp HPK 125W The lamp should ideally be mounted with the base down Ballast C440 and a maximum inclination from the vertical of +- 30. The lamp can be mounted in a BA15d connector. Due to the high level of UV radiation extreme care should be taken in following the local health and safety precautions for operators working in the presence of ultra violet light.
Fig 2 Dimensions of HPK 125W Lamp
55 max
31.5 max
91 max
SPECIFICATIONS APPLICATIONS Wattage 125 The HPK lamp is a high Ignition voltage 180V Running Voltage 125V output UV source used fo Current 1150mA Stabilisation Time 2 mins applications such as Output drop at 1000Hrs 20% photochemical processing
fluorimetry, mercury
analysers, medical and
environmental equipment
and fixed wavelength
detectors. 2 Line Sources Cathodeon
FEATURES Fig 6 Percentage Output Power Cathodeon has developed a compact low pressure, low MERCURY 90 voltage Mercury vapour lamp, type HG2, principally for use 253.7 in scientific instrumentation. 80 VAPOUR This lamp has a highly stable output predominantly at the 70 253.7nm Mercury line. When used with the Cathodeon C430 LAMPS power supply the line output is much higher than, and the 60 stability comparable to, that of a Deuterium arc lamp. Other 50 lines, which total 20% of the output, are at 313nm, 365nm,
404nm and 435nm. 40 Percent The HG2 lamp has a strike voltage requirement of just 21V 30 and a typical power requirement of 2.7W, making this lamp especially suitable for use in portable instruments. 20 435.8 10 404.6 546.1 313.2 365.0 Fig 4 HG2 Lamp 220 300 400 500 600 Wavelength (nm)
LAMP MOUNTING It is advisable that the lamp should be mounted with the base and leads uppermost. Any clamp around the lamp envelope should be at the base end of the lamp. The clamp should be of low thermal capacity and poor thermal conduction. If the mount is such that it cools the lamp significantly Mercury can be condensed in this region, adversely affecting the performance of the lamp. The lamp, which is temperature sensitive, must be protected from draughts if optimum stability is to be achieved. APPLICATIONS Fig 5 Dimensions of HG2 Lamp he HG2 lamp can be used for applications such as DISCHARGE Mercury Analyzers,
Fluorimetry, 23 21
Pollution Analyzers, fl
Fixed Wavelength 39 35 Detectors and 51 Calibration Equipment. 49 5 MAX. 3 Line Sources Cathodeon
SPECIFICATIONS POWER SUPPLY Anode strike voltage 21V DC max, The Cathodeon Mercury Lamp Power Supply C430 is MERCURY 18V DC typical available for OEM use in board form, for building into Anode running voltage original equipment. at 150mA 8 - 14V DC It has been designed specifically to operate the Cathodeon VAPOUR low pressure Mercury lamp HG2 under optimum conditions. Anode current 100 - 300mA, 150mA recommended This constant current power supply is intended for scientific LAMPS use where maximum lamp stability is required. Filament strike voltage 5 - 7V DC SPECIFICATIONS Filament running voltage 3 - 4.5V DC Cathode Heater Supply Heater supply constant Filament running voltage current 400mA in starting at 150mA anode current 3.5V DC nominal phase 250mA in run phase The heater (blue lead) should be positive with respect to the cathode (black lead). Anode Supply 150mA constant current Filament strike current 400mA at 6V DC nominal Filament run current 250mA at 3.5V DC nominal Stability Anode current Noise and ripple better than Power dissipation at strike 8.7W max 0.2% Long term drift better Power dissipation during run 2.7W typical than 1% Warm up time 15 - 30 minutes Operation At switch on the heaters are If lamps are unused for several weeks a burn-in period up to run at 400mA constant current. several hours is recommended to reach full specification. This gives a “soft start” to the heaters and so prolongs the Output at lamp surface at 253.7nm lamp life. After a short delay With 150mA anode current 15mW/cm2 the lamp strikes and anode With 300mA anode current 30mW/cm2 current flows in the heater return. This has the effect of Output at lamp surface at 365nm dropping the heater current With 150mA anode current 1.0mW/cm2 supplied to 250mA. Feedback With 300mA anode current 2.4mW/cm2 between anode and heater supplies acts to further stabilize Noise at 253.7nm, 150mA the lamp output. and constant temperature 1 - 2% typical
Input Requirements 110, 130, 220, 240V ±10% rms Drift/hour (initial) <5% 50/60Hz Lifetime at 150mA 4000 hours typical Lamp Connections Board connections via Molex 2000 hours minimum 0.156" KK plugs Centre of gas discharge Dimensions 150mm x 76mm x 50mm (max) position 35 - 39mm above base line Weight 600g (max) Output viewing angle 140û cone angle about lamp centre line (highest ORDERING CODES intensity nearest filament) PRODUCT ORDERING CODE Temperature Envelope optimum 55-60ûC Mercury vapour lamp HG2 Fluctuation 1ûC OEM power supply C430 B2 4 Line Sources Cathodeon
FEATURES SPECIFICATIONS Cathodeon manufactures the TW6W black light blue Lamp voltage 220V BLACK LIGHT fluorescent lamp that emits ultra violet radiation in the Lamp current 27mA 300 - 400nm range. Output 50mW BLUE LAMP Average life 2500hrs Fig 7 Black Light Blue Lamp Fig 10 Polar Power Distribution (at 50cm) 0§ 180§
1 30§ 150§
2
uW/cm 2UV
60§ 90§ 120§
The bulb is manufactured of a dark blue glass which cuts off any visible radiation whilst remaining transparent to the ultra violet. POWER SUPPLY The TW6W black light blue lamps run on 220V mains voltage and therefore no power supply or ballast is required. LAMP MOUNTING The lamp is fitted with an E27 screw base and can be ORDERING CODES operated in any orientation. The ability to run the lamp PRODUCT ORDERING CODE directly from mains voltage enables the product to be Black light blue lamp TW6W used in applications where space is at a premium.
Fig 8 Black Light Blue Lamp Dimensions
max. 28
APPLICATIONS 77 +- 2 92 +- 2 max. 157.5 he spectral characteristics
of the lamp allows the
excitation of luminescence
which can reveal Fig 9 Spectral Irradiance
fluorescence and 3.5 Mains 230v 365.0 phosphorescence of 3 Band Width 1nm 2.5 tamps, dark room paints, 2
extiles, bank notes, papers 1.5
and in the geological 1 0.5
investigation of stones 404.6 0 Spectral Irradiance mWm 2/nm 1 @ 300mm and rocks. -0.5 200 250 300 350 400 450 500 550 600 650 700 Wavelength (nm) 5 Line Sources Cathodeon
FEATURES SPECIFICATIONS Cathodeon manufactures the TUV6WE germicidal lamp, a Lamp Voltage 220V GERMICIDA low pressure mercury vapour device emitting UV radiation Lamp Current 27mA primarily at 254nm. Intensity (at 1 M) 0.85uW/cm2 Fig 11 Germicidal Lamp Output 120mw LAMP Reduction in output over time between100 and 2500 hours 25% Average life 2500 hrs
POWER SUPPLY The TUV6WE germicidal lamp operates on 220V mains voltage and therefore no power supply or ballast is required.
ORDERING CODES PRODUCT ORDERING CODE LAMP MOUNTING Germicidal lamp TUV 6WE The lamp is fitted with an E27 screw base and can be operated in any orientation.
Fig 12 Germicidal Lamp Dimensions
max. 27.5
77 + - 1 92 + - 2 max. 157.5
Fig 13 Spectral Irradiance 140 Mains 230V 120 253.7 Band Width 1nm 100
80
60
40
20 435.8 546.1 0 313.2 365.0 404.6
Spectral Irradiance mWm 2/nm 1 @ 300mm -20 APPLICATIONS 200 250 300 350 400 450 500 550 600 650 700 Wavelength (nm) The primary use of the
TUV6WE lamp is for
sterilization of small
compartments where the
compact size and direct
mains operation are of
particular advantage. 6 Line Sources Cathodeon
FEATURES POWER SUPPLY SPECTRAL These cool, compact and easy to operate sources provide The C100 power supply has been designed to offer safe, isolated spectral line outputs for precise optical wavelength reliable and convenient operation of the C150 Calibration calibration in the ultraviolet, visible and near infrared regions Line Sources by providing correct starting and operating CALIBRATION of the spectrum. Also available is a dedicated power supply, conditions for all lamps in the range in a single unit. It is the C100, which is easy to operate and ensures stable long simple to operate since the only control is a single on/off LINE life lamp operation. switch and lamps are easily and safely connected by a plug A series of six electrodeless gas discharge lamps provide and socket, enabling quick changeover of the alternative well over 100 discrete wavelengths in the range 178nm sources in the range. The spectral line source will operate SOURCES to 843nm. Their low temperature, low pressure operation on either 110 - 130V or 220 - 240V AC, 50/60Hz. gives highly stable output spectra at wavelengths which are physical constants for the particular element employed. Fig 15 C100 Power Supply With Lamp Holder and Lamp For safety and convenience, lamps are used complete with a C150 lamp holder, easily interchangeable via a plug and socket on the rear of the power supply. Alternatively it takes but a few moments to unscrew the holder and change the lamp.
Fig 14 Dimensions of Lamp Holder and Lamp
106.5
69.5
24 45 14.5 0 5.0
19 SPECIFICATIONS 0 Input Switch selectable 110 - 130V/220 -240V AC 50/60Hz Output V 3.2KV peak to peak 180KHz Output I 300mA peak to peak 90û leading 75 Output Connector PET 100 series 50ohm 5.5 0 Dimensions 190mm x 190mm x 108mm high Weight 2.35Kg
OEM VERSION SPECIFICATIONS The Cathodeon Line Source Power Supply C100 is Lamp envelope Quartz available for OEM use in board form, for building into Standard lamp fill Mercury, Neon, Argon, original equipment. Xenon, Krypton, Mercury/Iodine. The package is available as follows: Non standard lamp fill Lamp fill to customer C100B2 - Printed circuit board, output transistors on specification can heatsink and mains transformer. APPLICATIONS be supplied. Lamp holder construction Bright steel base hese sources may be used and cable entry. Black anodized SPECIFICATIONS directly as wavelength Aluminium lamp cover. DIMENSIONS calibration references for Circuit board 115mm x 121mm x 80mm high Heatsink 102mm x 32mm x 70mm high a variety of equipment Transformer 69mm x 56mm x 59mm high
perating in the ultraviolet, WEIGHTS Circuit board 360g visible and near infrared Heatsink 150g regions of the spectrum. Transformer 675g 7 Line Sources Cathodeon
The wavelength graphs below indicate major transitions only. Many other lines, characteristics of a particular gas fill, may be detected dependent on the sensitivity and resolution of the detecting system. SPECTRAL Fig 16 Mercury Fig 17 Mercury/Iodine CALIBRATION LINE SOURCES 302.1 334.1 579.1 628.1 507.1 546.1 577.0 184.9 194.2 435.8 263.6 265.2 729.5 624.8 296.7 365.0 404.7 187.7 206.2 253.6 375.2 618 312.6; 313.2 312.6; Fig 18 Neon Fig 19 Argon 415.9 420.1 695.5 337.0 359.4 585.2 594.5 609.6 614.3 640.2 650.6 667.8 692.9 703.2 724.5 743.9 706.7 714.7 727.3 738.4 763.5 772.4 794.8 801.5 811.5 826.5 842.5 750.4; 751.5 750.4; Fig 20 Xenon Fig 21 Krypton 427.4 432.0 437.6 446.4 557.0 587.1 599.4 760.1 769.4 785.4 805.9 811.3 819.0 826.3 829.8 206.7 395.1 396.7 450.1 462.4 467.1 480.7 582.5 618.2 631.8 672.8 688.2 712.0 764.2 823.2 828.0 1.6; 492.3 1.6; ORDERING CODES ORDERING CODE PRODUCT ORDERING CODE PRODUCT C150 Lamp holder, lead and C100 Power Supply plug without lamp
C150/Xe } C155/Xe } C150/Ne } C155/Ne } C150/Ar }Lamp holder, lead and C155/Ar } Replacement C150/Kr }plug complete with specified lamp C155/Kr } Lamp C150/Hg/I } C155/Hg/I } C150/Hg } C155/Hg } 8 Line Sources Cathodeon
FEATURES Fig 24 Spectral Irradiance - He
Cathodeon manufactures a range of sources which each 18 Auto Leak Transformer
LINE TRMS Current 912mA 587.6 emit a number of monochromatic lines of known wavelength. 16 TRMS Voltage 83.0V Band Width 1nm The lamps contain a discharge tube filled with a very pure 14 SOURCES gas, metallic vapour or a combination of the two and an 12 arc is struck between electrodes that permit a very high 10
current density. 8 667.8 A suitable gas is the rare gas Helium which primarily gives 6 4 output in the visible region. Alkali metals such as Sodium 388.9
2 447.1 can be added to the gas filled discharge tube, the metal 501.6 Spectral Irradiance mWm 2/nm 1 @ 300mm being vaporised by the heat of the discharge. 0 -2 The discharge tube is surrounded by a cylindrical outer 200 250 300 350 400 450 500 550 600 650 700 bulb which may be of quartz for those applications where Wavelength (nm) the ultra violet radiation below 250nm is important.
Fig 22 Line Source Lamp Fig 25 Spectral Irradiance - Na
350 Auto Leak Transformer TRMS Current 933mA 300 TRMS Voltage 12.8V 589.6 Band Width 1nm 250
200
150
100
50
MERCURY LAMPS Spectral Irradiance mWm 2/nm 1 @ 300mm 0 A Cathodeon line source filled with mercury is available in a -50 200 250 300 350 400 450 500 550 600 650 700 low pressure version, the low pressure lamp emits the normally Wavelength (nm) expected line spectrum.
Fig 23 Spectral Irradiance - Low Pressure Hg
80 Auto Leak Transformer
546.1 TRMS Current 940mA 70 TRMS Voltage 13.0V Band Width 1nm
60 435.8
50
40
30
APPLICATIONS 404.6
20 365.0 576.9 These lamps are useful as 10 579.0 407.8
Spectral Irradiance mWm 2/nm 1 @ 300mm 0 illumination or calibration -10 200 250 300 350 400 450 500 550 600 650 700 sources in a wide range of Wavelength (nm)
biological and chemical
esearch where visible and
ultra violet radiation
is necessary. They are
dditionally used in specific
techniques such as
nterferometry Polarimetry
Refractometry and
Spectroscopy. 9 Line Sources Cathodeon
LAMP MOUNTING SPECTRAL DATA While most often run vertically for convenience the Cathodeon Measurements were made of spectral irradiance in units of -2 -1 LINE line sources may be operated in any orientation. All the mW/m nm at a distance of 300mm from the horizontal centre lamps have identical electrical and geometrical characteristics of each lamp. The height of each lamp was adjusted so that including the light centre position, the arc length varying the vertical centre of the emitting area was coincident with SOURCES from 25mm to 38mm dependent on the type of lamp. the optical axis of measurement. This uniformity ensures that the differing lamps are speedily The measurement equipment consisted of a spectroradiometer interchangeable permitting experimentation over a wide based on a Bentham DM 150 double monochromator. The spectral band using several lamps. wavelength accuracy of the spectroradiometer was checked before measurements commenced and found to be within ¿30 plus or minus 0.25nm over the range used. Measurements were made at 1nm intervals with 1nm bandwidth over the range 200nm to 700nm. Fig 26 Line Source Lamp Dimensions In each case the specified warm up time was observed. A 174 110
SPECIFICATIONS
GAS/VAPOUR ENVELOPE WATTAGE ARC LENGTH CURRENT WEIGHT
Hg (low pressure) glass 12 38 940mA 60g
He glass 60 32 912mA 60g
Na glass 14 19 933mA 60g
ORDERING CODES
PRODUCT ORDERING CODE Gas/Vapour Hg (low pressure) 93123 He 93098 Na 93122
POWER SUPPLY ORDERING CODES The Cathodeon auto leak transformer C800 can be supplied DESCRIPTION PART NO. in both 230v and 110v forms to drive any of the complete Auto Leak Transformer for 220V C800 range of Cathodeon line sources. Auto Leak Transformer for 110V C811 The Company Cathodeon Ltd is based in the university city of Cambridge, England, and is the world’s leading Specialist in Spectral Source Technology. Its experience in the design and manufacture of vacuum/gas filled electronic components spans over 60 years of changing technology since the company was founded in the mid 1930’s. A programme of active fundamental research to improve noise, intensity and lifetime performance, with continuing light source, electronic and mechanical engineering support, enable Cathodeon lamps to meet the most stringent requirements of modern instrumentation and are increasingly the first choice of major instrument manufacturers throughout the world. The Products Cathodeon is continuously improving and extending its range of specialist light sources used by the scientific and professional community. Detailed literature, application notes and technical data are available describing all products in the current Cathodeon range of: ¥ Deuterium Lamps ¥ Hollow Cathode Lamps ¥ Xenon Lamps ¥ Mercury Lamps ¥ Vacuum Ultra Violet Lamps ¥ Pulsed Deuterium Lamps ¥ Calibration Lamps ¥ See Through Hollow Cathode Lamps ¥ Filament supports for Mass Spectrometry ¥ Photoionisation Lamps ¥ Tungsten Halogen Lamps ¥ Line Sources Quality Cathodeon is committed to customer satisfaction at all levels. The application of Total Quality Manufacturing (TQM) control and rigorous instrument testing, combined with prealignment of lamps, custom packaging and our proven Just-in-time (JIT) delivery procedures, help sustain long term business relationships on all continents.
ISO 9002 CERTIFIED
World-Wide Distribution Cathodeon products are available to discerning scientists through an authorised network of over 80 dealers covering more than 50 countries around the world. In addition to major distributors many other dealers also carry extensive stocks to ensure rapid delivery to the end user. However, if any difficulties are experienced in the supply of Cathodeon products, or for any OEM enquiries, please contact us at our office in Cambridge. For OEM and in the UK Cathodeon Ltd Nuffield Road, Cambridge CB4 1TW Telephone: (01223) 424100 • Fax: (01223) 426338 International Telephone: +44 1223 424100 • Fax: +44 1223 426338 e-mail: [email protected] website: www.cathodeon.com
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