Related Manuals for Ludlum Measurements 44-9
Summary of Contents for Ludlum Measurements 44-9
- Page 1 LUDLUM MODEL 44-9 ALPHA, BETA, GAMMA DETECTOR February 2010 Serial Number PR090405 and Succeeding Serial Numbers...
- Page 3 LUDLUM MODEL 44-9 ALPHA, BETA, GAMMA DETECTOR February 2010 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...
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Page 5: Table Of Contents
Model 44-9 Alpha, Beta and Gamma Detector Table of Contents I nt roduc t ion U npa c k ing a nd Re pa c k ing Spe c ific a t ions Ope ra t ing Proc e dure s... -
Page 6: 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 7: 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 8: Operating Procedures
Model 44-9 Alpha, Beta and Gamma Detector : active is 15 cm ; open is 12 cm Window Are a : pancake-type halogen quenched GM De t e c t or 900 Vdc De t e c t or Ope ra t ing V olt a ge :... -
Page 9: 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 10 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.
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Page 11: 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 13: Ga M M A Ene Rgy Re Sponse
Model 44-9 Alpha, Beta and Gamma Detector Ludlum Measurements, Inc. Page 8 February 2010...
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