RTI Barracuda Manuale utente

Reference Manual - English - Version 4.3A

Barracuda

QABrowser

RTI article number: 9620501-00

Welcome to Barracuda

and the QABrowser

The Barracuda is an X-ray Analyser/Multimeter for

everybody working with Quality Assurance and

Service of X-ray systems.

NOTICE

Palm, palmOne, and TUNGSTEN are trademarks of PalmOne, Inc.

HotSync and Graffiti are trademarks of ACCESS CO., LTD

Microsoft, Windows, Win32, Windows XP, 2003, Vista, and 7 are either registered trademarks or

trademarks of Microsoft Corporation in the United States and/or other countries.

BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., USA.

Notice

RTI Electronics Inc.

33 Jacksonville Road, Bldg. 1,

Towaco, NJ 07082,

USA

Phone: 800-222-7537 (Toll free)

Int. +1-973-439-0242

Fax: Int. +1-973-439-0248

E-mail

Sales: [email protected]

Support: [email protected]

Service: [email protected]

Web site: http://www.rti.se

Contact Information -

United States

RTI Electronics AB reserves all rights to make changes in the Barracuda, the

QABrowser, and the information in this document without prior notice.

RTI Electronics AB assumes no responsibility for any errors or consequential

damages that may result from the use or misinterpretation of any information

contained in this document.

Content of this document may not be reproduced for any other purpose than

supporting the use of the product without prior permission from RTI Electronics

AB.

RTI Electronics AB

Flöjelbergsgatan 8 C

SE-431 37 MÖLNDAL

Sweden

Phone: Int. +46 31 7463600

Fax: Int. +46 31 270573

E-mail

Sales: [email protected]

Support: [email protected]

Service: [email protected]

Web site: http://www.rti.se

Contact Information -

World-Wide

Barracuda & QABrowser Reference Manual

2012-10/4.3A

III

Intended Use of the Barracuda System

Accessory to diagnostic X-ray equipment to be used as an electrometer. Together with external

probes it is to be used for independent service and quality control, as well as measurements of

kerma, kerma rate, kVp, tube current, exposure time, luminance, and illuminance within

limitations stated below.

If installed according to accompanying documents, the product is intended to be used together

with all diagnostic X-ray equipment except for:

- therapeutical X-ray sources.

- X-ray equipment with tube potential below 20 kV.

- X-ray equipment on which the instrument cannot be mounted properly, e.g. equipment where

the beam field size is narrower than the active part of the detector.

- specific types of X-ray equipment listed in the instructions for use or in additional information

from the manufacturer.

With the X-ray installation in stand-by conditions without patients present, the product is intended

to be used:

- to provide the operator with information on radiation beam parameters that might influence

further steps in an examination but not an ongoing exposure.

- for assessing the performance of the X-ray equipment.

- for evaluation of examination techniques and procedures.

- for service and maintenance measurements.

- for quality control measurements.

- for educational purposes, authority supervision etc.

The product is intended to be used by hospital physicists, X-ray engineers, manufacturer's service

teams, and other professionals with similar tasks and competencies. The operator needs a short

training to be able to use the product as intended. This training can be achieved either by careful

study of the manual, studies of the built-in help function in measurement software or, on request,

in a short course ordered from the manufacturer.

The product is intended to be used inside X-ray rooms ready for clinical use and can safely be left

switched on and in any measuring mode in the vicinity of patients.

The product is NOT intended to be used:

- for direct control of diagnostic X-ray equipment performance during irradiation of a patient.

- so that patients or other unqualified persons can change settings of operating parameters during

and immediately before and after measurements.

Barracuda & QABrowser Reference Manual 2012-10/4.3A

Intended Use

Barracuda & QABrowser Reference Manual

2012-10/4.3A

Contents 1

Table of Contents

1. ........................................................................................................... 6

Introduction

..................................................................................................... 61.1 About this Manual

..................................................................................................... 61.2 Introduction to the Barracuda

..................................................................................................... 81.3 PC Requirements

..................................................................................................... 81.4 Palm OS Computer Requirements

2. ........................................................................................................... 10

Description of the Barracuda

..................................................................................................... 102.1 Overview of the Barracuda

..................................................................................................... 112.2 Cabinet and Modules

..................................................................................................... 142.3 The Multi-Purpose Detector (MPD)

..................................................................................................... 152.4 Setting Up the Barracuda for the First Time

..................................................................................................... 162.5 Setting Up the Barracuda

..................................................................................................... 172.6 Hardware and Specifications

.............................................................................................................172.6.1 Cabinet ..........................................................................................................172.6.1.1 General ..........................................................................................................182.6.1.2 Specifications, Cabinet

.............................................................................................................182.6.2 Multi-Purpose Detector (MPD)

..........................................................................................................182.6.2.1 General ..........................................................................................................192.6.2.2 Specifications, MPD

..........................................................................................................242.6.2.3 Typical Response, MPD

..........................................................................................................272.6.2.4 Angular Sensitivity, MPD

.............................................................................................................292.6.3 Signal-Extension Module (MP-SEM)

..........................................................................................................292.6.3.1 General ..........................................................................................................292.6.3.2 Specifications, MP-SEM

.............................................................................................................292.6.4 Electrometer Module (EMM)

..........................................................................................................292.6.4.1 General ..........................................................................................................302.6.4.2 Specifications, EMM

..........................................................................................................332.6.4.3 Optional Detectors

..........................................................................................................382.6.4.4 Typical Other Detectors

..................................................................................................... 412.7 Standards and Compliances

.............................................................................................................412.7.1 Waste Electrical and Electronic Equipment (WEEE)

.............................................................................................................422.7.2 Manufacturer's Declaration of Conformity

.............................................................................................................432.7.3 Intended Use

..................................................................................................... 442.8 Maintenance

.............................................................................................................442.8.1 Barracuda Batteries

..........................................................................................................442.8.1.1 Exchanging Batteries

..........................................................................................................442.8.1.2 Charging the Batteries

.............................................................................................................452.8.2 Updating the Barracuda Firmware

.............................................................................................................482.8.3 Managing Detector Calibrations

.............................................................................................................492.8.4 Transferring Detector Calibrations

.............................................................................................................502.8.5 Exchanging Modules

3. ........................................................................................................... 55Description of the QABrowser

..................................................................................................... 553.1 Introduction to the QABrowser

Barracuda & QABrowser Reference Manual 2012-10/4.3A

Contents

..................................................................................................... 553.2 Starting the QABrowser

..................................................................................................... 563.3 Real-time Display and Waveforms

.............................................................................................................563.3.1 Using the Real-Time Display

.............................................................................................................613.3.2 Waveforms - Acquiring and Viewing

.............................................................................................................623.3.3 Measurement Settings

..........................................................................................................643.3.3.1 Settings - Conditions

..........................................................................................................683.3.3.2 Settings - Barracuda

..........................................................................................................703.3.3.3 Settings - MPD

..........................................................................................................723.3.3.4 Settings - Other Detectors

..................................................................................................... 723.4 QABrowser Applications

.............................................................................................................733.4.1 The Accuracy Application (single-parameter)

.............................................................................................................753.4.2 The Accuracy Application (multi-parameter)

..................................................................................................... 773.5 Data Logging

..................................................................................................... 793.6 Favourites

.............................................................................................................803.6.1 Getting Started with Favourites

.............................................................................................................833.6.2 Start here!

..................................................................................................... 833.7 QABrowser Setup

.............................................................................................................843.7.1 Regulations Setup

.............................................................................................................843.7.2 Units Setup

.............................................................................................................853.7.3 Log Setup

.............................................................................................................853.7.4 Preferences Setup

.............................................................................................................863.7.5 Detector Information

.............................................................................................................863.7.6 System Info

.............................................................................................................873.7.7 System Test

..................................................................................................... 873.8 Battery & Power Status

..................................................................................................... 893.9 Indicators and Symbols

..................................................................................................... 913.10 Installation of Palm OS Handheld Computers

.............................................................................................................913.10.1 Updating QABrowser on the handheld

.............................................................................................................933.10.2 Uninstalling the QABrowser

4. ........................................................................................................... 95Measurement Principles & Theory

..................................................................................................... 954.1 Overview of Capability for Measurement Modes

..................................................................................................... 954.2 Measurement Type Settings

..................................................................................................... 964.3 Update Modes

.............................................................................................................974.3.1 Using Timed Update Mode

.............................................................................................................984.3.2 Using Free Run Update Mode

..................................................................................................... 994.4 Display Messages and Active Messages

.............................................................................................................994.4.1 Active Messages

.............................................................................................................1004.4.2 Display Messages

..................................................................................................... 1024.5 Waveforms and Triggers

..................................................................................................... 1034.6 Measurement Principle for the MPD

..................................................................................................... 1044.7 HVL & Total Filtration

..................................................................................................... 1054.8 Linearity

..................................................................................................... 1064.9 Reproducibility

5. ........................................................................................................... 109Measurements with the Barracuda System

..................................................................................................... 1095.1 Introduction

..................................................................................................... 1105.2 Very Low Dose Rate Measurements with EMM-BiasW

Barracuda & QABrowser Reference Manual

2012-10/4.3A

Contents 3

..................................................................................................... 1115.3 Radiography

.............................................................................................................1135.3.1 kVp, Time, Dose, and Dose Rate

.............................................................................................................1165.3.2 Dose Measurements with R100 or Ion Chamber

.............................................................................................................1175.3.3 HVL Application

.............................................................................................................1185.3.4 Quick-HVL and Total Filtration

..................................................................................................... 1205.4 Cine/Pulsed Radiography

.............................................................................................................1215.4.1 kVp, Time, Dose, and Dose Rate

.............................................................................................................1215.4.2 Pulse Measurements with R100 or Ion Chamber

.............................................................................................................1225.4.3 HVL, Quick-HVL, and Total Filtration

..................................................................................................... 1225.5 Fluoroscopy and Pulsed Fluoroscopy

.............................................................................................................1235.5.1 Image Intensifier Input Dose Rate

.............................................................................................................1255.5.2 kVp and Dose Rate

.............................................................................................................1275.5.3 HVL, Total Filtration, and Quick-HVL

.............................................................................................................1295.5.4 Pulsed Fluoroscopy

..................................................................................................... 1325.6 Mammography

.............................................................................................................1325.6.1 General .............................................................................................................1345.6.2 Setting Up the Barracuda for Mammography

.............................................................................................................1365.6.3 kVp, Time, and Dose Measurements with the MPD

.............................................................................................................1385.6.4 Dose Measurements with the R100 or Ion Chamber

.............................................................................................................1405.6.5 HVL Application

.............................................................................................................1415.6.6 Mammo Compensations and Corrections

..........................................................................................................1415.6.6.1 Corrections for the Compression Paddle

..........................................................................................................1425.6.6.2 Normalization

..........................................................................................................1435.6.6.3 Beam Correction Factor

..........................................................................................................1435.6.6.4 Corrections for Angular Sensitivity

.............................................................................................................1445.6.7 Average Glandular Dose, AGD (MGD)

.............................................................................................................1455.6.8 Mammographic Pre-pulses

.............................................................................................................1455.6.9 Scanning Beam Mammography

..................................................................................................... 1465.7 Dental and Panoramic Dental

.............................................................................................................1495.7.1 kVp, Time, Dose, and Dose Rate

.............................................................................................................1525.7.2 Waveforms

.............................................................................................................1525.7.3 Panoramic Systems

.............................................................................................................1555.7.4 HVL, Total Filtration, and Quick-HVL

..................................................................................................... 1555.8 CT

.............................................................................................................1565.8.1 CT kVp .............................................................................................................1585.8.2 CT Dose and CT Dose Index (CTDI)

.............................................................................................................1635.8.3 CT Scan Time (Exposure Time)

.............................................................................................................1635.8.4 CT mAs

.............................................................................................................1635.8.5 Parameters for CT Scanner Models

.............................................................................................................1645.8.6 Definition of CTDI

.............................................................................................................1645.8.7 Quick-HVL and Total Filtration

..................................................................................................... 1655.9 Tube Current Probes

.............................................................................................................1665.9.1 MAS-1B, Invasive mAs Probe

.............................................................................................................1685.9.2 MAS-2B, Non-invasive mAs Probe

.............................................................................................................1715.9.3 MAS-3, Non-invasive mAs Probe

..................................................................................................... 1745.10 Light Measurement

.............................................................................................................1745.10.1 Luminance - Monitor/Viewbox (cd/m²)

.............................................................................................................1755.10.2 Illuminance - Ambient Light (lx)

6. ........................................................................................................... 178Optional Accessories

Barracuda & QABrowser Reference Manual 2012-10/4.3A

Contents

..................................................................................................... 1786.1 Holder & HVL Stand

..................................................................................................... 1786.2 Barracuda MPD Panoramic Holder

..................................................................................................... 1806.3 USB Serial Port Adapter

..................................................................................................... 1826.4 Barracuda Bluetooth Serial Module

7. ........................................................................................................... 186Problems and Solutions

..................................................................................................... 1867.1 Troubleshooting

..................................................................................................... 1887.2 Bluetooth

.............................................................................................................1887.2.1 Bluetooth Passkey

.............................................................................................................1907.2.2 Enable Bluetooth Passkey

..................................................................................................... 1917.3 How To Report a Problem

8. ........................................................................................................... 193Glossary

........................................................................................................... 204Index

Introduction

Chapter 1

1. Introduction

About this Manual

Barracuda & QABrowser Reference Manual 2012-10/4.3A

1 Introduction

About this Manual1.1

This manual is divided into a few main parts.

1. A general description of the Barracuda.

2. A general description of the QABrowser.

3. Some theoretical background and basic principles.

4. Descriptions on performing measurements with the system for different

modalities.

5. Description of different accessories for the Barracuda.

6. Troubleshooting tips, an FAQ, and a glossary.

Users who use the Barracuda with only a PC and oRTIgo are recommended to read at

least the following topics:

·Introduction

·Description of the Barracuda

·Measurements with the Barracuda System

This manual gives a short introduction to handheld computers and enough of

information to get started and use it with the Barracuda. However, it is advised (if you

are going to use a handheld computer) to study the manual that is included with your

handheld computer to get familiar with its capabilities.

Pictures in included manuals for detectors and probes may include an ADI module (a

small module with a connector attached to the detector cable). ADI modules are used

to store calibration data and used by other products than the Barracuda from RTI

Electronics. For the Barracudasystem, calibration data is instead stored inside the

system. See section Managing Detector Calibrations for more information.

The handheld computer is sometimes called "Palm" or "Palm computer" in this manual,

this is referring to all types of handheld computers running Palm OS or Windows

Mobile that currently are possible to use with the Barracuda and the QABrowser.

Typographical Rules

Terms in bold face are references to texts on screenshots, like buttons and texts, and

menu items. Other terms are italicized.

Introduction to the Barracuda1.2

Congratulations to your purchase of a Barracuda. You have now in your hand the most

powerful tool for X-ray analysis. It has been carefully designed to meet the needs of

both standard QA applications as well as advanced service/repair/calibration of

modern X-ray systems, while still being very simple and intuitive to use. It can measure

all the required parameters such as kVp, exposure time, dose, dose/pulse, dose rate,

tube current, mAs, waveforms, and much more. One single detector, the unique

multi-purpose detector (MPD) can be used for radiography, mammography,

fluoroscopy, pulsed fluoroscopy, cine, dental, dental panoramic, and CT (not CT dose).

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