Fluke-biomedical 35080B Manuel d'utilisateur

35080B kVp Divider Operators Manual February 2005 Manual No. 37648 Rev. 7 ©2004, 2005 Fluke Corporation, All rights r

35080B Operators Manual (Blank page)

OperationBattery Check2 2-1 Section 2 Operation Prior to taking measurements with the Model 35080B kVp Divider, it is suggested that the battery

35080B Operators Manual 2-2Figures 2-1A & 2B show suggested oscilloscope settings for the 50-150 kV range using the Wide Range Filter Pack (3761

OperationOscilloscope Zero and Offsets2 2-3Figure 2-1A and 1B. Suggested Oscilloscope Settings for Use with the Wide Range Filter Pack (37617) As

35080B Operators Manual 2-4 Figure 2-2. Geometry of Setup for Above-Table X-ray Tube Figure 2-3. Geometry of Setup for Below-Table X-ray Tube 2.

OperationLinearity Corrections2 2-52.7 Linearity Corrections Corrections for linearity in using the Wide Range Filter Pack (37617) are made by takin

35080B Operators Manual (Blank page)

Theory of OperationIntroduction3 3-1Section 3 Theory of Operation 3.1 Introduction When used with the Wide Range Filter Pack (37617) the Model 35

35080B Operators Manual 3-2 Figure 3-2 Output Ratio Plotted as a Function of kV Figure 3-3. Out

Theory of OperationOutput3 3-33.4 Output In the Model 35080B kVp Divider, the intensity ratio is taken with a high-speed logarithmic ratio module.

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35080B Operators Manual (Blank page)

Test Filter Pack Option (32863)Introduction4 4-1Section 4 Test Filter Pack Option (32863) 4.1 Introduction The Test Filter Pack (32863) provides a

35080B Operators Manual 4-24.4 Operating Instructions The operation of the Test Filter Pack (32863) is similar to the operation of the Wide Range F

Cadmium K-edge Mammo Filter Pack Option (37355)Introduction5 5-1Section 5 Cadmium K-edge Mammo Filter Pack Option (37355) 5.1 Introduction The Cadm

35080B Operators Manual 5-25.2 Specifications Intended Use Beryllium window, molybdenum anode mammographic generators Range 27.5 kVp to 29.5 kVp Ac

Cadmium K-edge Mammo Filter Pack Option (37355)Theory of Operation5 5-3 Figure 5-2. The kVp Correction Curves for the Cadmium

35080B Operators Manual 5-4 2. Oscilloscope Setup - Connect the kVp Divider to the scope using a shielded cable and set the vertical sensitivity s

Cadmium K-edge Mammo Filter Pack Option (37355)Operating Instructions5 5-5Figure 5-4. DC Mammographic Generator Input Waveforms

35080B Operators Manual 5-6 Figure 5-6. Single-phase Mammographic Generator Input Waveform Figure 6-7.

Cadmium K-edge Mammo Filter Pack Option (37355)Operating Instructions5 5-7 When proceeding to Linear Measurement, Section 6.5, Operating Instruc

iTable of Contents Section 1: General Information... 1-1 1.1 Intr

35080B Operators Manual (Blank page)

Linear Mammo Filter Pack Option (37351)Introduction6 6-1Section 6 Linear Mammo Filter Pack Option (37351) 6.1 Introduction The Linear Mammo Filter

35080B Operators Manual 6-2The reading from the Linear Mammo Filter Pack (37351) is compared to that taken with the Cadmium K-edge Mammo Filter Pac

Linear Mammo Filter Pack Option (37351)Corrections6 6-3 Figure 7-2. The correction curve that shows the effect of adding 0.2

35080B Operators Manual 6-4 Figure 6-3. Linear Measurement Setup 2. Connect the kVp Divider output to either a storage oscill

Linear Mammo Filter Pack Option (37351)Operating Instructions6 6-55. Measure other kVp values as desired. Record the LINEAR VOLTAGE, multiply by 1

35080B Operators Manual (Blank page)

CT Filter Pack Option (33551)Introduction7 7-1 Section 7 CT Filter Pack Option (33551) 7.1 Introduction The CT Filter Pack (33551) provides a non-in

35080B Operators Manual 7-27.3 Theory of Operation The Model 35080B kVp Divider contains a pair of solid-state detectors which when exposed to x-ray

CT Filter Pack Option (33551)Correction of Readings7 7-3 Figure 7-1. CT Filter Pack (33551) Filtration Effect Correction Cu

iiSection 6: Linear Mammo Filter Pack Option (37351)... 6-1 6.1 Introduction ...

35080B Operators Manual 7-4 Figure 7-2. CT Filter Pack (33551) Linearity Correction CurvekVCorrection Value (kV) Linearity Corr

Mobile Filter Pack Plus Option (37946)Introduction8 8-1Section 8 Mobile Filter Pack Plus Option (37946) 8.1 Introduction The Mobile Filter Pack Plus

35080B Operators Manual 8-28.2 Specifications Range 50 to 135 kV Sensitivity 0.1 V/10 kV Cal 0.600 V Zero 40 kV Cal 100 kV Calibration Filtration

Mobile Filter Pack Plus Option (37946)Linearity Corrections8 8-38.4 Linearity Corrections Corrections for linearity of the Mobile Filter Pack Plus (3

35080B Operators Manual (Blank page)

Low Range Filter Pack Option (38237)Introduction9 9-1Section 9 Low Range Filter Pack Option (38237) 9.1 Introduction The Low Range Filter Pack (3823

35080B Operators Manual 9-29.4 Operating Instructions The operation of the Low Range Filter Pack (38237) is similar to the operation of the Wide Ran

Low Range Filter Pack Option (38237)Filtration Effect Correction9 9-39.5 Filtration Effect Correction The Low Range Filter Pack (38237) is calibrated

35080B Operators Manual 9-4 Figure 9-2. Low Range Filter Pack (38237) Linearity Correction Curve. The kVp Correction Value

MaintenanceCleaning the Instrument10 10-1 Section 10 Maintenance 10.1 Cleaning the Instrument To clean the exterior of the instrument, follow these

iiiAppendix B: Correcting kVp Measurements for Gain Effects ...B-1 B.1 Introduction ...

35080B Operators Manual 10-2PROBLEMS WITH THE MODEL 35080B KVP DIVIDER 1. The power battery may be weak or dead. Check the battery and replace i

MaintenanceCleaning the Instrument10 10-3 Figure 10-1. Battery Replacement for the Model 35080B kVp Divider 10.4 Calibra

35080B Operators Manual 10-4 Each 1% deviation of this value will result in no more than a 0.75% of reading error. This measurement must be made

MaintenanceCalibration10 10-5 If the oscilloscope in use is not accurate to ± 0.1%, do not attempt adjustment of the Model 35080B kVp Divider. OTHE

35080B Operators Manual 10-6 Figure 10-3. Effects of RP103 Adjustment 10.5 Replaceable Parts Information Fluke Biomedical

MaintenanceCleaning the Instrument10 10-710.6 Recalibration & Repair Information/technical assistance If your instrument needs recalibration or r

35080B Operators Manual (Blank page)

AppendixMammographic Measurements With The Model 35080BA A-1Section A Mammographic Measurements With The Model 35080B A.1 Introduction We recommend

35080B Operators Manual A-2K-EDGE MEASUREMENT PROCEDURE Part A 1. Set the x-ray generator for 25 kVp, 100 mA--or a mAs setting that provides the ma

AppendixLinear MeasurementA A-33. Set scope for single sweep, storage mode, and in the ‘‘DC’’ input mode. LINEAR MEASUREMENT PROCEDURE Part A 1. W

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35080B Operators Manual A-4 Figure A-1. The Model 35080B Mammographic Worksheet (Example) Set kVp K-edge Voltage True kVp Linear Volta

AppendixCorrecting kVp Measurements For Gain EffectsB B-1Section B Correcting kVp Measurements For Gain Effects B.1 Introduction Section 10.4, Cal

35080B Operators Manual B-2B.3 Voltmeter Measurements If the output of the Model 35080B kVp Divider is connected to a voltmeter, a mathematical cor

AppendixThe Model 35050A Dosimeter MeasurementsB B-3 ()offset Zerooffset ZerokVp CAL Actualoffset ZerokVp CAL Expectedoffset ZerokVp MeasuredkVp Co

35080B Operators Manual (Blank page)

AppendixProcedure For Making kVp MeasurementsC C-1Section C Procedure For Making kVp Measurements On Rhodium Anode, Rhodium Filtration Selection Of

35080B Operators Manual C-2Use the following procedure to measure kVp on the rhodium anode, rhodium filtration selection of the DMR. 1. Acquire a C

AppendixProcedureC C-3Table C-2. Look-up-table for Linear Mammo Filter Pack (37351) measurements made on Rh anode, Rh filtration selection of DMR mam

35080B Operators Manual C-44. For all subsequent measurements at other generator settings, use the following procedure. First, obtain a reading us

General InformationIntroduction1 1-1Section 1 General Information 1.1 Introduction The Model 35080B kVp Divider is an alternative to high-voltage

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35080B Operators Manual 1-2 1.4 Specifications Range 50-150 kVp with the Wide Range Filter Pack (37617) Accuracy ± 2% of reading, exclusive of line

General InformationSpecifications1 1-3Table 1-2. The Wide Range Filter Pack (37617) Specifications Range: 50 to 150 kVp Sensitivity: 0.1 V/10 kV C