Related Manuals for LUDLUM 44-9
Summary of Contents for LUDLUM 44-9
- Page 1 LUDLUM MODEL 44-9 ALPHA, BETA, GAMMA DETECTOR December 2016 Serial Number PR090405 and Succeeding Serial Numbers...
- Page 3 LUDLUM MODEL 44-9 ALPHA, BETA, GAMMA DETECTOR December 2016 Serial Number PR090405 and Succeeding Serial Numbers LUDLUM MEASUREMENTS, INC. 501 OAK STREET, P.O. BOX 810 SWEETWATER, TEXAS 79556 325-235-5494, FAX: 325-235-4672...
- Page 5 RETURN OF GOODS TO MANUFACTURER If equipment needs to be returned to Ludlum Measurements, Inc. for repair or calibration, please send to the address below. All shipments should include documentation containing return shipping address, customer name, telephone number, description of service requested, and all other necessary information.
- Page 6 Model 44-9 Alpha, Beta and Gamma Detector Ludlum Measurements, Inc. December 2016...
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Page 7: Table Of Contents
Model 44-9 Alpha, Beta and Gamma Detector Table of Contents Introduction Unpacking and Repacking Specifications Operating Procedures Tube Replacement Cleaning Instructions and Precautions Parts List Drawings and Diagrams Pancake Probe, Drawing 2 × 206 Gamma Energy Response Beta Efficiencies Ludlum Measurements, Inc. -
Page 8: Introduction
The Ludlum Model 44-9 will operate with any Ludlum instruments or equivalent instruments that provide 900 Vdc and an input sensitivity of approximately 30 mV or higher. -
Page 9: Unpacking And Repacking
If multiple detectors are included, refer to the calibration certificates for serial number (SN) matches. The Model 44-9 serial number is located on the detectors’ bottom plate. To return an instrument or detector for repair or calibration, provide sufficient packing material to prevent damage during shipment (see “Caution!”... -
Page 10: Operating Procedures
Model 44-9 Alpha, Beta and Gamma Detector : active is 15.51 cm ; open is 12.26 cm Window Area : pancake-type halogen quenched GM Detector 900 Vdc Detector Operating Voltage: : general purpose survey meters, Compatible Instruments ratemeters, and scalers. -
Page 11: Tube Replacement
Model 44-9 Alpha, Beta and Gamma Detector 2. Connect the detector to the instrument and check for a proper background reading (typically 25-50 cpm at 8-15 µR/hr). 3. Expose the detector to a check source and verify that the instrument indicates within 20% of the check source reading from the last calibration. -
Page 12: Cleaning Instructions And Precautions
Model 44-9 Alpha, Beta and Gamma Detector Caution! The mica window of this tube is extremely thin and fragile. There is also a thin layer of material to prevent UV interference. This material may come off if touched, causing the detector to malfunction. DO NOT TOUCH! 6. -
Page 13: Parts List
Model 44-9 Alpha, Beta and Gamma Detector Parts List Model 44-9 Alpha-Beta-Gamma Detector Reference Description Part Number UNIT Completely Assembled Model 44-9 Alpha-Beta-Gamma Detector 47-1539 DETECTOR BODY 2002-109 HANDLE GRIP 7002-426 GM TUBE (LND 7311, TGM N1002) 01-5008 3 EA SOCKET SET SCREWS (10-34 ×... -
Page 14: Drawings And Diagrams
Model 44-9 Alpha, Beta and Gamma Detector Drawings and Diagrams Ludlum Measurements, Inc. Page 7 December 2016... -
Page 15: Gamma Energy Response
Model 44-9 Alpha, Beta and Gamma Detector Ludlum Measurements, Inc. Page 8 December 2016... -
Page 16: Beta Efficiencies
Model 44-9 Alpha, Beta and Gamma Detector Ludlum Measurements, Inc. Page 9 December 2016...
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