Siemens SX 50 80 User manual

POLYDOROS SX 50/80

RX

Start-up Instructions

SIRECON 2 Connection

Register 4

Print No.: RX63-050.034.12.01.02

© Siemens AG 1996

The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model _or_ design,_are_ reserved.

English

Doc. generation Date: 05.96

Replaces: n.a.

Chapter 0				Revision
Page 2 of 4
Chapter		Page	Rev.
0		1 to 2	01
1		1 to 4	01
2		1 to 6	01
3		1 to 22	01
4		1 to 10	01
5		1 to 2	01
6		1 to 4	01

				LetzteSeitedesKapitel
POLYDOROS SX 50/80	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Contents	Chapter 0
	Page 3 of 4
	Page

1 _______Prerequisites __________________________________________________ 1 - 1

General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1 Required Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1 Required Tools and Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2 Safety-technical Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2 Remarks Regarding Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2 Image Quality in Fluoroscopy Systems . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3

2 _______Preparations for dose rate setting _________________________________ 2 - 1

Notes on the VIDOMATIC P. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1 Suppression of light distributor (220 V, not for I.I.40) . . . . . . . . . . . . . . . . . . 2 - 1 Fluoroscopic dose rate

(Excerpt from "Test Certificate for Fluoro and DFR/DR Systems") . . . . . . . . . . . 2 - 2

3 _______Startup _______________________________________________________ 3 - 1

Programming the POLYMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1

General Remarks	. .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3	- 1
Programming . . . .	. .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3	- 1
Fluoroscopy Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
Additional Information: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3			- 2

Excerpt from the "Reference Value List for Fluoro and DFR/DR Systems":. . . . . . . 3 - 3 Fluoroscopy dose rate at the I.I. input . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3 DR Programming (if Configured) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4 Excerpt from the Reference Value List for "Fluoro and DFR/DR Systems":. . . . . 3 - 4 SIRCAM Programming (if Configured) . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5 Excerpt from the Reference Value List for "Fluoro and DFR/DR Systems: . . . . . 3 - 5 Configuration" / "IONTOMAT..." . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 6 "Data" / "Restore" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 6 IONTOMAT P: Checking Drift and Hum (Ripple) during Fluoroscopy . . . . . . . . . . 3 - 7 Adjusting the Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8 General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8 Preadjustment - "PDA Preadjust" . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10 Carrying Out the Sensitivity Adjustment . . . . . . . . . . . . . . . . . . . . . . 3 - 11 Checking the Dose Rate for Fluoroscopy . . . . . . . . . . . . . . . . . . . . . . . 3 - 13 Preparations (Test Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 13 Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 14 Checking the Dose/Image for SIRCAM . . . . . . . . . . . . . . . . . . . . . . . . 3 - 15 Setting the Maximum Skin Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . 3 - 16 Preparations (Test Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 16

Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3			- 16
Final Check of the Skin Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . 3			- 17
Calibrating the Acquisition (Poly-I.I. Adaption)	. . . . . . . . . . . . . . . . . . . . 3		- 18
Preparations (Test Conditions) . . . . . .	. . . . . . . . . . . . . . . . . . . .	3	- 18
Check . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . . . . .	3	- 18

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX 50/80
Medical Engineering		Rev. 01 05.96

Chapter 0	Contents
Page 4 of 4
	Page

Adjusting the TV Iris Diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 19
Adjusting the TV Iris Diaphragm . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 20
Preparations (Test Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3	- 20
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3	- 21
Checking the B-Signal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3	- 21
Preparations (Test Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3	- 21
4 ______ Fluoro and Exposures Curves ____________________________________4 - 1
Programming the Fluoro Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1

Generating Your Own Fluoro Curves (Brief Description) . . . . . . . . . . . . . . . .	4 - 4
Final Recording of Fluoroscopy . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4	- 5
Preparations (Test Setup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4 - 5
Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4		- 5
Exposure curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4		- 6
General Remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6
Generating Your Own Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	4 - 8
Allocating the Exposure Curves to the Organ Keys . . . . . . . . . . . . . . . . . .	4 - 9

5 ______ Final works ____________________________________________________5 - 1

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1 Important: Saving the Programming . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 2

6 ______ Appendix, SDM Service__________________________________________6 - 1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Checking the PDA Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 1 PDA measured at SIMOMED H - 44 cm . . . . . . . . . . . . . . . . . . . . . . 6 - 2 Adjusting the Size of the PDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2 Checking the Selected ADC Measuring Field . . . . . . . . . . . . . . . . . . . 6 - 2 Checking the Superimposed ADC Measuring Field with FLUROSPOT H . . . . . . . 6 - 3 Measurement field sizes in zoom mode (RX unit with 40-4 HDR I.I.) . . . . . . . . . 6 - 4

				LetzteSeitedKapitel0s
POLYDOROS SX 50/80	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Prerequisites	Chapter 1
	Page 1 of 4

General Remarks

•This document is applicable for the following generators: POLYDOROS SX 50/80

The SIRECON 2 connection is an expansion to the basic generator (see generator installation instructions) and is comprised of the D270 board, the D271 assembly, the multiplier extension cable as well as the connections parts and installation materials.

Required Documents

•TV-I.I. A Connection Wiring Diagram: X1768

•POLYDOROS SX Wiring Diagram: X2075

•POLYDOROS SX Start-up Instructions: RX63-050.034.10...

For SIRCAM:

•SIRCAM 103 Wiring Diagram G5129 or SIRCAM 106 Wiring Diagram G5091

The following documents are needed to carry out the image quality acceptance test for Fluoro and DFR/DR systems:

• Measuring Instructions		RXD0-000.074.01.
•	Test Certificate	RXD0-000.037.01.
•	List of nominal values	RXD0-000.075.01.

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96

Chapter 1	Prerequisites
Page 2 of 4
Required Tools and Test Equipment
- Standard installation tool kit
- Service PC	per ARTD, Parts 1, 3, 1.0
- PC connection cable, 5 m	99 00 440 RE999
- 2-channel memory oscilloscope,
TEKTRONIX 2232	97 02 234 Y3155
- Precision copper filter, 2.1 mm	99 00 598 XE999
- Cu filters, set	44 06 120 RV090
- Resolution test, Type 41/42	28 71 820 RE999
- 17 m copper strips	11 67 662 G5247
- Digital multimeter,
FLUKE 8060A	97 02 101 Y4290
- mAs meter	81 60 400 RE999
- kV/dose meter, PTW-NOMEX	97 08 637 Y0388
- Ground wire test instrument	44 15 899 RV090

CAUTION When using the oscilloscope, the ground wire in the power cable may not be disconnected under any circumstances. For measurements in which any ground loops may be present which may cause the measurement result to be adversely affected, use the TEK isolating amplifier and the triggering option.

Safety-technical Information

The "Safety-technical Information" contained in generator installation instructions must be observed.

• Checks or adjustments which must be carried out under radiation are labeled in the instructions with the radiation warning symbol . While these work steps are being carried out, observe the appropriate radiation protection measures (see TI 216)

Remarks Regarding Start-up

•With systems which have been preassembled and tested at the factory per the BZ (can be seen from the accompanying "Test Certificate, Jumper Protocol” in the Register labeled ”Protocol”), only very brief checks and adjustments need to be carried out.

•Enter the results from the measurements labeled with ”” in the Test Certificate in the column marked ”Start-up Measurement Value”.

NOTICE Switch on the dose meter at least 15 minutes prior to the measurement and then calibrate it.

CAUTION No additional filter may be selected at the collimator.

POLYDOROS SX	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Prerequisites	Chapter 1
	Page 3 of 4

Image Quality in Fluoroscopy Systems

Prerequisites and General Remarks Regarding Filling Out the IQ Test Certificate for Fluoroscopy Systems:

Beam geometry (collimation and centering) of the application equipment must be in order.

When filling out the "Test Certificate / Fluoro and DFR/DR Systems",

RXD0-000.037.01... observe the following:

• In Chapter 1, enter the Setting Instructions containing the data for fluoroscopy in the IQ tests used for start-up.

• In Chapter 1.1, enter the customer data and the BZ Number.

• In Chapter 1.2, enter the configured components along with their designation. Part No. and Serial No.

• In Chapter 1.3, list the test equipment used along with designation and Serial No. and the date until which the calibration is still valid.

• In Chapter 2, enter the data from the configured image intensifier.

• After each measurement, enter the results in the "Test Certificate/Fluoro and DFR/DRSystems".

•Compare the measurement results with the reference values.

•If tolerances are exceeded, determine the reason and the error or correct the incorrect setting before continuing with the checks. Otherwise it is possible that subsequent measurements will be adversely influenced.

• Enter the BZ number and the data on each page of the "Test Certificate/Fluoro and DFR/ DR Systems" to assure that there will be clear organization of the certificate pages.

•There may not be any empty fields in the completed certificate. Enter n.a. (not applicable) in fields in which no entry can be made. Fields which can only be filled in during customer start-up are marked in the certificate as such.

Pencil may not be used to fill out the certificate; do not use Tippex to make corrections.

• Record the start-up instructions which are used for customer start-up. These contain information pertaining to performance of IQ texts and must be recorded in the "Test Certificate/Fluoro and DFR/DR Systems" in Chapter 1.

• The tester at the factory and the tester carrying out the start-up must sign and date the "Test Certificate/Fluoro and DFR/DR Systems" in Chapter 1-1.

•Cross out incorrect entries and write the correct value next to it along with the date and the tester’s initials.

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96

Chapter 1

Prerequisites

Page 4 of 4

At the Conclusion of the Test:

•Leave the "Test Certificate/Fluoro and DFR/DR Systems" RXD0-000.037.01... with the system and file it in Register 9 of the System Binder.

If the System Binder is not available, file the Test Certificate in Register 9 of the Generator Binder.

POLYDOROS SX	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Preparations for dose rate setting

Chapter 2

Page 1 of 4

Notes on the VIDOMATIC P

•For KK version systems, 2 fluoroscopy characteristic curves can be programmed (Fluoro 1 and Fluoro 2).

•For systems in RAS version, up to 4 fluoroscopic characteristic curves can be programmed if they can be selected from the unit (Fluoro 1. . . Fluoro 4).

•Dose-saving zoom can be programmed with existing iris diaphragm.

•Customer-specific fluoroscopy curves can be generated within the range of C80...C99.

Normal fluoroscopy (max. 450 W)

•Can be selected from fluoroscopy characteristic curves in the firmware (C00, C01, C02, C03, C10, C11)

High-contrast fluoroscopy (max. 1200 W, with modified high-voltage generator, as from Serial No. 01056, max. 2000 W)

•Can be selected from fluoroscopy characteristic curves in the firmware (C40, C41, C42, C50, C60, C61, C62, C63, C64, C65)

Therapy simulation

•It is possible to program 2 fluoroscopy curves which can be selected from:

- fluoroscopy characteristic curves in the firmware (C40, C41, C42, C50, C60, C61, C62, C63, C64, C65)

Suppression of light distributor (220 V, not for I.I.40)

NOTICE Voltage peaks caused by switching off the motor voltage of the mirror motor in the light distributor result in generator interferences

•For the reason, generally incorporate two RC elements, Part No.31 33 147 B2003 parallel to the motor.

		For 220V mirror motor voltage, reconnect
		jumper x7 on board D271
M 8.7		M 8.8	x7
	M		3
		100Ω	24V mirror (40cm I.I.)
			2
			220V mirror
		0.22µF	1
	M 8.3

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96

Chapter 2

Preparations for dose rate setting

Page 2 of 4

Fluoroscopic dose rate

(Excerpt from "Test Certificate for Fluoro and DFR/DR Systems")

Basic info on dose/dose rate measurement on image intensifier workstations

For dose measurement at the I.I. input (KB) or dose rate measurement at the I.I. input

(KB), attach the dose measuring chamber centrally to the radiation field, as close as possible to the I.I.; in the case of spotfilm devices, place it in the cassette shaft. If this is not possible, measure the dose (KTg) or the dose rate (KTg) in front of the attenuating layers:

-With OT units on the tabletop

-With UT units on the spotfilm device rear panel

-With C-arm units on the grid

Using the correction factor m (unit attenuation factor), the value at the I.I. input is calculated.

The unit attenuation factor contains all attenuating layers between the patient and the image receptor, including the distance factor; it is indicated in the unit test certificates and can also be calculated by multiplication of the attenuation factors of all individual layers.

The radiation attenuation of 6% resulting from the dose measuring chamber must be taken into account as well (factor 0.94).

Determination of the dose/dose rate directly at the I.I. input

	Dose				Dose rate
Meas. chamber in the I.I. plane	KB=	KBg x 0,94			KB=	KBg x 0,94
Meas. chamber in front of	KB=	KTG x	0,94		KB=	KTg x 0,94
		m				m
attenuating layers

Special case 1: Dose rate measurement if the ADC measuring field is larger than the dose measuring chamber:

Allow the ADC to adjust with 2.1 mm Cu prefiltration, change over to STOP , now place the dose measuring chamber in the beam path and measure the dose rate. The factor of 0.94 must not be taken into account in this case.

Special case 2: Dose measurement if the dominant is larger than the dose measuring chamber:

Place 2.1 mm Cu and the dose measuring chamber in the beam path, release an exposure and measure the dose (KBg or KTg) and the mAs value (Qg1). Remove the dosimeter from the beam path, release an exposure and measure the mAs value (Qg2). Calculate the dose at the I.I. input (KB)

KB=KBg	x	Qg2	; KB=	K	Tg x		Q	g2
		Qg1					Qg1
				m

POLYDOROS SX	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Preparations for dose rate setting				Chapter 2
				Page 3 of 4
Determining the unit attenuation factor from the individual attenuation factors
Attenuation factor of tabletop, spotfilm device rear panel etc.				mT
Attenuation factor of scattered radiation grid				mR
Attenuation factor of Iontomat chamber				mI
		2
Attenuation factor distance factor	mA =	rB

rT

Unit attenuation factor m = mT x mR x m? x mA . . . . . . .

Cu filter

rB

rT

m				KTg

unit attenuation

factor

KBg

KB

Measuring chamber in front of attenuating layers Tabletop or spotfilm device rear panel

Grid

Iontomat chamber

Measuring chamber in I.I. plane (cassette shaft) I.I. input

KB/KB KBg/ KBg KTg/KTg rB

rT

=Dose/dose rate directly at the I.I. input

=Measured dose/dose rate in the I.I. plane

=Measured dose/dose rate in front of the attenuating layers

=Source-image receptor distance

=Distance between source and beginning of the attenuating layers

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96

Chapter 2

Preparations for dose rate setting

Page 4 of 4

Formulas for calculating the dose/dose rate in the measuring plane for the dose/ dose rate setting

During setting, the dose or dose rate required directly at the I.I. input must be converted into the measuring plane (I.I. plane or in front of the attenuating layers). For this, use the modified formulas. .

Dose

Dose rate

KB

K

Meas.chamb. in I.I.plane

K

=

K

= B

0.94

Bg

Bg

0.94

Meas.chamber in front of

KB x m

= KBx m

attenuating layers

K

Tg

=

K

0.94

Tg

0.94

Remark: The radiation attenuation resulting from the dose measuring chamber is already taken into account during setting

(for adjustment: remove the dose measuring chamber from the beam path). Do not use the factor of 0.94 for calculating the dose rate to be set.If the dose/ dose rate is checked (not set), the factor of 0.94 must be taken into account.

Example for determining the correction factor

Correction factor m (total) =

(source-I.I. distance/source-measuring chamber distance)2 x m-factor (Iontomat camber) x m-factor (Raster)

xm-factor (tabletop etc., if between dose measuring chamber and I.I.) etc.

-Distance correction factor (mA) =

	source-I.I. distance( rB)		2	100	2
			Example:
	source-meas. chamber distance(rT)				=1.17
				92.5
	- Grid correction factor (mR)		= 1.7
	- IONTOMAT chamber correct. factor (mI) = 1.1
	- Tabletop correction factor (mT)		= 1.1

When setting the dose/dose rate, multiply the dose/dose rate required at the I.I. input by the correction factors.

e.g.	174 nGy/s	x	(mA x mR x mI x mT)
	174 nGy/s	x	(1.17 x 1.7 x 1.1 x 1.1) =
	174 nGy/s	x	2.4	= 408 nGy/s

(1 R=8.7 nGy)

Record the correction factor m in Chapter 4.1 of the "Test Certificate for DL and DFR/DR Systems".

The test certificate is filed in Register 9 of the System or Generator Binder.

POLYDOROS SX	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Startup	Chapter 3
	Page 1 of 22

Programming the POLYMATIC

General Remarks

In system shipments, the programming has already been carried out at the factory.

In subsystems, the expansions to be connected during start-up must be programmed appropriately.

NOTICE File the test certificate"Fluoro and DFR/DR Systems", RXD0000.037.01... in Register 9 of the System or the Generator Binder.

A help function is available in the Service Software beginning with Service Software

VE00A.

•By clicking on the "HELP" box in the particular window or

•by pressing the "F1" function key on the PC or

•in the "Help" / "Index" in the main menu

valuable information and the required programming and entries can be selected.

Programming

1 Establishing the Generator - Service PC Connection

2 "System" / "Connect"

3 "Configuration" / "Options..." / "Page 2..."

• Set the dose and dose rate units of measurement.

4 "Configuration" / "Unit Selection" / "Button 1..."

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96

Chapter 3

Startup

Page 2 of 22

Fluoroscopy Programming

The Test Certificate "Fluoro and DFR/DR Systems", RXD0-000.037.01... is filed in Register 9 of the System or Generator Binder.

•Select "Fluoroscopy" (if not already selected!)

•Select "FC-Details..."

•Appropriately program the "Primary FC-Data" and confirm with "OK".

•Appropriately program the "VIDEOMATIC P" and confirm with "OK".

• Record the values programmed in the Test Certificate:

SID (focus-I.I. distance) in Chapters 4 and 4.2,

Over-table units: 115 cm

Under-table units: max. SID (do not move out the Distator)

C-Arm units: 100 cm

I.I. formats in Chapter 4.1.2

Zoom dose rate (Zoom dose factors) in Chapters 4.1.2 and 4.2

Dose rate in Chapters 4.1 and 4.2

The fluoroscopy curves used by the customer in Chapter 4.2.

Additional Information:

• "maximum fluoro rate":
- Therapy Simulation:	OPTILIX 150/12/50 C:	max. 1000 W
- High Contrast Fluoro:	MEGALIX 125/40/82 C:	max. 1200 W
(with HV generators beginning with Ser. No. 01056		max. 2000 W)
with the fluoro footswitch with the 2nd pressure point
- "Normal Fluoro"	all other X-ray tubes	max. 450 W

•When the image intensifier model is selected, all input boxes are assigned default values (see also the IQ reference value list).

•The dose rate selected is always relative to the full format (largest I.I. format!)!

•Program the same dose rate values for Automatic 1 and 2

•Fluoroscopy blocking: "Block on"

according to regulations in Germany and in DHHS countries, fluoroscopy must be blocked after 5 minutes.

•If fluoroscopy is configured after the "test shots" of the X-ray tube, the X-ray tube test shots must be carried out again

("Adjustment"/"Tube 1..."/"PT Emulation...": Module J05, J06 and J07")!

POLYDOROS SX	Register 4	RX63-050.034.12	TD AX 6	Siemens AG
		Rev. 01 05.96		Medical Engineering

Startup	Chapter 3
	Page 3 of 22

Excerpt from the "Reference Value List for Fluoro and DFR/DR Systems":

Fluoroscopy dose rate at the I.I. input

2.1 mm Cu filter, X-ray tube voltage 65 - 85 kV

					1,		2	3	Zoom Dose
									Factors
	BV-Typ /	Formate /			Dosisleistg.			Hochkontrast /
	I.I. Type	Formats			Dose rate			High contrast	PL SX
						(nGy/s)		(nGy/s)
									50/80
40 cm HD		40			87			139	1:
		28			160			255	2.0:
		20			315			505	4.0:
		14			(435)			(695)	5.0
40 cm HDR		40			87			139	1:
		30			120			195	1.8:
		22			255			405	3.3:
		17			440			700	5.5
33 cm HD		33			113				1:
		23			240				2.1:
		17			450				3.8
33 cm HDR		33			113				1:
		22			235				2.3:
		17			405				3.8:
		13			680 (430)				6.4 (3.8)
27 cm		27			174				1:
		17			445				2.5:
		14			655 (435)				3.7 (2.5)
Sirec.Komp.		22			261				1:
(alt/old)		17			435				1.7
23 cm HDR/HDLE		23			261				1:
Sirec.Komp.		17			440				1.8:
(neu/new)		13			730 (470)				3.1 (1.8)
				*1
	UMultiplier = 700 – 950 V					1 nGy/s = 0.115 R/s / 1 R/s = 8.7 nGy/s

Tolerance: I.I. full format ± 10%; at Zoom formats approximate value only.

Tolerance of indirect dose rate control ±1 kV, mA: ±10%

Values in brackets ( ) apply if TV iris diaphragm is configured.

Urology: With TV iris diaphragm for Automatic 2, set double the dose rate.

*1 effective beginning 7.93 (possible only with masked Multiplier)

Siemens AG	TD AX 6	RX63-050.034.12	Register 4	POLYDOROS SX
Medical Engineering		Rev. 01 05.96