THE MODIFICATION AND CALIBRATION OF LANDSVERK MODEL L-62 CHARGER-READERS FOR INTERCHANGEABILITY

Technical Report · Mon Mar 28 04:00:00 EST 1960

OSTI ID:4166302

Lynn, R L

Landsverk Model L-62 charger-readers and their calibration procedure were modified so that Rendsverk pocket chambers can be charged on any of the charger-readers amd subsequently read on any other of the charger-readers without introducing significant error in the dose reading. The modifications were primarily concerned with the establishment of an equal, constant value, charging voltage for all the pocket chambers. The introduction of an offset zero position for reading Landsverk Model L-65, 200-mr pocket chambers, to compensate for the negative readings of fully charged 200-mr pocket chambers was also accomplished. With the modified L-62 charger-readers, a constant value of applied voltage on a pocket chamber will yield dose readings reproducible to better than 5% for consecutive readings made on different charger-readers. This value is compared with a discrepancy of about 15% for similar readings on unmodified L-62 charger- readers. A precision of 1% can be realized for consecutive readings made on any one modified charger-reader. (auth)

• Research Organization: Naval Radiological Defense Lab., San Francisco
• NSA Number: NSA-14-015777
• OSTI ID: 4166302
• Report Number(s): USNRDL-TR-408
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ELECTRIC CHARGES
ELECTRIC POTENTIAL
ENGINEERING AND EQUIPMENT
ERRORS
IONIZATION CHAMBERS
POCKET CHAMBERS
RADIATION DOSES
RECORDING SYSTEMS