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Ludlum Measurements, Inc.

March

2016

Table of Contents

Introduction

Specifications

Safety Considerations

Environmental Conditions for Normal Use

3-1

Cleaning Instructions and Precautions

3-1

Parts List

Parts for Model 43-93

4-1

Parts for Model 43-93-2

4-2

Parts Common to Both Models

4-2

Drawings and Diagrams

Содержание 43-93

Страница 1: ...LUDLUM MODEL 43 93 AND MODEL 43 93 2 ALPHA BETA SCINTILLATORS March 2016 ...

Страница 2: ...LUDLUM MODEL 43 93 AND MODEL 43 93 2 ALPHA BETA SCINTILLATORS March 2016 ...

Страница 3: ...anty of merchantability or fitness which extend beyond the description of the face there of If the product does not perform as warranted herein purchaser s sole remedy shall be repair or replacement at the option of Ludlum Measurements In no event will Ludlum Measurements be liable for damages lost revenue lost wages or any other incidental or consequential damages arising from the purchase use or...

Страница 4: ...duction 1 Specifications 2 Safety Considerations 3 Environmental Conditions for Normal Use 3 1 Cleaning Instructions and Precautions 3 1 Parts List 4 Parts for Model 43 93 4 1 Parts for Model 43 93 2 4 2 Parts Common to Both Models 4 2 Drawings and Diagrams 5 ...

Страница 5: ...360 instruments provide the necessary circuitry for simultaneous alpha beta discrimination A Zinc Sulfide ZnS Ag scintillator is used for detecting alpha particles and a thin plastic scintillator is employed for detecting beta radiation The scintillation material is covered by metallized Mylar to reduce light response limiting excessive background counts The Model 43 93 window is protected by an 8...

Страница 6: ...dow Area Model 43 93 Active area approximately 100 cm2 Open area approximately 88 cm2 Window Area Model 43 93 2 Active area approximately 126 cm2 Open area approximately 100 cm2 Efficiency 4 Model 43 93 typically 15 for 99 Tc 20 for 90 Sr 90 Y and 20 for 239 Pu Model 43 93 2 typically 10 for 99 Tc 17 for 90 Sr 90 Y and 15 for 239 Pu Background in a 10µR hr field Alpha 3 cpm or less Beta 300 cpm or...

Страница 7: ...0 megohm Gamma Sensitivity 15 20 cpm µR hr 137 Cs Dead Time typically 5 µsec or less Connector Series C unless otherwise specified Temperature Range 20 to 50 C 4 to 122 F Size 6 4 x 9 5 x 31 cm 2 5 x 3 8 x 12 3 in H x W x L Weight approximately 0 45 kg 1 lb Construction aluminum housing with beige powder coat finish ...

Страница 8: ...50 C 4 to 122 F Maximum relative humidity of less than 95 non condensing Cleaning Instructions and Precautions The detectors specified in this manual may be cleaned externally with a damp cloth using only water as the wetting agent Do not immerse the detector in any liquid Do not attempt to clean a detector that is attached to an instrument providing high voltage Disconnect the detector cable befo...

Страница 9: ... Window Frame 7393 148 1 ea Face Ring 7393 137 1 ea Square Screen external snap on screen 7393 171 1 ea Backup w Plastic Scintillator and ZnS 4393 153 1 ea Plastic Scintillator EJ444L 2 94 x5 91x 0 010 01 5692 1 ea Photomultiplier Tube 01 5842 1 ea Voltage Divider Board 5435 484 Foil NETIC 01 5019 Foil CO NETIC 01 5026 9 ea Sponge 7002 065 04 1 ea Tube Holder Assembly 2393 117 1 ea Gasket 7393 139...

Страница 10: ...stic Scintillator EJ212 3 12 x 6 67 x 0 010 01 5685 1 ea Photomultiplier Tube 01 5238 1 ea Voltage Divider Board 5435 182 Foil NETIC 01 5019 Foil CO NETIC 01 5026 9 ea Sponge 7002 065 04 1 ea Tube Holder Assembly 2393 117 1 ea Gasket 7393 110 1 ea O Ring 16 8366 1 ea Series C Connector RECPT UG706 U 4478 011 1 ea Model 43 93 2 Vinyl Cover 7393 169 Reference Description Part Number BOARD Completely...

Страница 11: ...age 4 3 March 2016 Reference Description Part Number R2 7 5M 1 8W 5 12 7971 R3 R10 10M 1 8W 1 12 7996 R11 2 21M 1 8W 1 12 7002 R12 R13 10M 1 8W 1 12 7996 SOCKET 1 1 8 inch PCB MOUNT 4435 103 W1 Wire 22AWG WHT 9 65 40 21 8543 W4 Wire 22AWG BLK 0 65 40 21 8552 MISCELLANEOUS ...

Страница 12: ... Drawings and Diagrams Model 43 93 Assembly View Drawing 393 140 Model 43 93 2 Assembly View Drawing 393 119 Mylar Window Replacement Drawing 393 x 165A 1 1 8 inch Voltage Divider Circuit Board Drawing 435 1325 1 1 8 inch Voltage Divider Component Layout Drawing 435 1324 2 sheets Section 5 ...

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