Philips NICOL Collimator User manual

Contents NICOL X-Ray Beam Limiting Device

Contents

1

INTRODUCTION AND TECHNICAL DATA..........................................................................................7

1.1 Introduction ...........................................................................................................................................7

1.2 Options..................................................................................................................................................7

1.3 Versions................................................................................................................................................8

1.4 Equipment Identification and Labelling..................................................................................................8

1.5 Tools .....................................................................................................................................................8

1.6 Technical Data......................................................................................................................................9

1.6.1 Compatibility......................................................................................................................................9

1.6.2 Mechanical Data..............................................................................................................................10

1.6.3 Electrical Data .................................................................................................................................10

1.6.4 Software Data..................................................................................................................................11

1.6.5 Environmental Conditions for Transport and Storage ......................................................................11

1.6.6 Performance Data ...........................................................................................................................12

1.7 Compliance information ......................................................................................................................13

1.8 Conditions of Acceptability ..................................................................................................................14

1.9 Abbreviations and definitions ..............................................................................................................14

1.10 Manual history .................................................................................................................................15

2

INSTALLATION..................................................................................................................................16

2.1 Introduction .........................................................................................................................................16

2.1.1 Tools & Test Equipment ..................................................................................................................16

2.1.2 Supplied Items.................................................................................................................................16

2.2 Installation instructions........................................................................................................................16

2.2.1 Mounting the coupling flange assembly Nicol V2.............................................................................17

2.2.2 Mounting the coupling flange assembly...........................................................................................18

2.2.3 Centering the BLD with respect to the X-Ray tube...........................................................................18

2.2.4 Mounting the BLD on the X-Ray tube housing.................................................................................19

2.2.5 Electrical installation........................................................................................................................20

2.2.6 Checking the alignment of the light field and the X-Ray field ...........................................................22

2.3 Options................................................................................................................................................22

2.3.1 Installation AEP-meter.....................................................................................................................22

3

FAULT FINDING.................................................................................................................................23

3.1 Introduction .........................................................................................................................................23

3.2 Faultfind Strategy................................................................................................................................24

3.3 Indicators ............................................................................................................................................24

3.3.1 LA2: Power Supply Converter CAN interface (PSC_CAN) ..............................................................24

3.3.2 LA3: Shutter Iris Filter Light Controller (SIFLCO).............................................................................25

3.3.3 Measuring Points.............................................................................................................................26

3.3.4 Miscellaneous..................................................................................................................................26

4

REPLACEMENTS ..............................................................................................................................28

4.1 General ...............................................................................................................................................28

4.2 Replace (complete) BLD on the stand.................................................................................................28

4.3 Replace Aesthetic Cover.....................................................................................................................28

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NICOL X-Ray Beam Limiting Device Contents

Replace Field Indication Plate.............................................................................................................28

4.4

4.5 Replace DSC Buttons .........................................................................................................................29

4.6 Replace DSC assembly ......................................................................................................................29

4.7 Replace LA2: PSC_CAN.....................................................................................................................31

4.8 Replace LA3: SIFLCO.........................................................................................................................32

4.8.1 Replace PROM LA3D17..................................................................................................................32

4.9 Replace Electronic Ruler.....................................................................................................................33

4.9.1 Connection electronic ruler..............................................................................................................34

4.10 Replace Mechanical Ruler...............................................................................................................35

4.11 Replace Lamp .................................................................................................................................36

4.12 Replace Micro-switch ......................................................................................................................37

4.13 Replace Micro-switch including Bracket...........................................................................................37

4.14 Replace Fan ....................................................................................................................................38

5

PROGRAMMING................................................................................................................................39

5.1 Introduction .........................................................................................................................................39

5.2 Hardware Programming ......................................................................................................................39

5.2.1 LA1: Backpanel ...............................................................................................................................39

5.2.2 LA2: Power Supply Converter & CAN Interface Board (PSC_CAN) ................................................39

5.3 Software Programming .......................................................................................................................39

6 ADJUSTMENTS .................................................................................................................................40

6.1 Centering the BLD with the X-Ray Tube .............................................................................................40

6.1.1 Introduction......................................................................................................................................40

6.1.2 Tools Required ................................................................................................................................40

6.1.3 Mounting the BLD Alignment Tool ...................................................................................................40

6.1.4 Checking the centering for PEI 9896 010 2216. ..............................................................................40

6.1.5 Adjusting the centring......................................................................................................................41

6.1.6 Checking the Centering for PEI’s 9896 010 2217., 9896 010 2223. and 9896 010 2224.................43

6.2 Field Indication Plate with Crossed-lines.............................................................................................44

6.3 X-Ray Field to Light Field....................................................................................................................45

6.3.1 Light Field Size Adjustment .............................................................................................................45

6.3.2 Lamp Adjustment After Replacing Lamp..........................................................................................45

6.3.3 Light Field Adjustment After Replacing Lamp ..................................................................................46

6.4 Electrical Adjustment...........................................................................................................................47

6.5 Software Adjustments .........................................................................................................................47

7

LIST OF FIGURES AND DRAWINGS................................................................................................48

P. PARTS LIST.......................................................................................................................................51

Z. DRAWINGS........................................................................................................................................52

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NICOL X-Ray Beam Limiting Device Introduction and Technical Data

1 INTRODUCTION AND TECHNICAL DATA

1.1 INTRODUCTION

This X-Ray Beam Limiting Device (BLD) is suitable for:

• RAD application 9896 010 2216. successor of 9896 010 22001

• RF applications with light and ruler 9896 010 2217. successor of 9896 010 22011

• RF applications as above plus filter and iris 9896 010 2223. successor of 9896 010 22091

• RF applications 9896 010 2224. successor of 9896 010 22101

The BLD, contains the following functions:

• Rectangular collimation, using rectangular shutters (main-, backup- and near focus shutters)

• Non rectangular collimation, using rectangular and iris shutters (iris on 9896 010 2223. and

9896 010 2224. only)

• Remotely controlled spectral filter (except for 9896 010 2217.)

• Light source (including field indication plate with crossed lines, fan and light ON button) for

simulating the X-Ray Field

• Electronic Ruler (9896 010 2216.) for automatic measuring the Source Image distance

• Mechanical Ruler (9896 010 2217. and 9896 010 2223. and 9896 010 2224.) for manually

measuring the Source Image distance

• Swivel range -45° to +45°, with lock position at 0°Manual control of rectangular shutters (DSC), by means of 2 continuously rotatable buttons

• Accessory Rails

• Aesthetic cover

• Plug & Play interface to X-ray tube assembly (see chapter 1.6.1 Compatibility page 9)

1.2 OPTIONS

Possible options for this BLD are:

• 9896 010 22071 transparent AEP-meter

• 4522 300 2417x NICOL DISC

• 4522 300 2418x NICOL P&P DISC

downgrade to conventional interface to X-ray tube assemblies

for upgrading of Nicol to X-ray tube assemblies with P&P interface

1

see chapter 1.6.1 Compatibility page 9

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Introduction and Technical Data NICOL X-Ray Beam Limiting Device

ERSIONS

1.3 V

Table 1: Version survey

Functions

Rectangular collimation Non rectangular collimation - DSC buttons Remote Controlled Spectral Filter Light/Light-button + fan + Field Indication Plate Electronic Ruler Mechanical Ruler Swivel Accessory rail Aesthetic cover Option: AEP-meter transparent

9896 010

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5

5 5 5 5 5 5 5 5 5 5

5 5 5 5 5 5 5

9896 010

2217.

5

-

- - -

5 5 5

9896 010

2223.

5 5 5

5 5

5 5 5

9896 010

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5

5 5 5

1.4 EQUIPMENT IDENTIFICATION AND LABELLING

The BLD identification labels are located at the rear of the BLD, see item 1, Figure 31, page 49.

1.5 TOOLS

For software tools see the applicable system reference manual. For hardware tools, see chapter 2.1.1, Tools & Test Equipment, page 16.

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NICOL X-Ray Beam Limiting Device Introduction and Technical Data

ECHNICAL DATA

1.6 T

1.6.1 COMPATIBILITY

The BLD is compatible with:

X-Ray tube assemblies indicated in Table 3 in combination with NICOL Beam Limiting Devices as

configured in

• Table 2.

Table 2: Nicol configurations

Nicol Configurations With service kit

Nicol RAD 9896 010 22001 Nicol DuoD 9896 010 22011 Nicol DuoD+iris 9896 010 22091 Nicol OmniD 9896 010 22101 Nicol RAD V2 9896 010 2216. Nicol DuoD V2 9896 010 2217. Nicol DuoD+iris V2 9896 010 2223. Nicol OmniD V2 9896 010 2224.

Table 3: Compatibility Overview

None A

NICOL P&P DISC 4522 300 2418x

None

NICOL DISC 4522 300 2417x

B

C

D

X-ray tube assembly

Tube Housing 12nc

MRC 200 0310 ROT-GS 1004

MRC 200 0407 ROT-GS 1004

MRC 200 0508 ROT-GS 1003

MRC 200 0508 ROT 1003

MRM 0410 ROT-GS 2502

MRM 0508 ROT-GS 2502

SRM 0608 ROT-GS 505

SRM 0511 ROT-GS 501

SRM 0612 ROT 501

SRO 33100 ROT 351

SRO 33100 ROT 350

SRM 2250 ROT-GS 500

SRM 2250 ROT-GS 504

SRM 0612 ROT 504

SRO 2550 ROT 350

SRO 0951 ROT 350

RO 1648 ROT 350

RO 1750 ROT 350

NICOL

configuration

9890 000 85091 A, D 9890 000 85092 9890 000 85101 9890 000 85102 9890 000 85141 A, D 9890 000 85142 9890 000 85131 9890 000 85132 9890 000 63271 A, D 9890 000 63272 9890 000 63261 9890 000 63262 B, C 9890 000 85181 A, D 9890 000 85182 9890 000 03821 9890 000 03822 B, C 9890 000 63911 9890 000 63912 9874 006 23112 9890 000 85851 B, C 9874 005 16122 9890 000 85841 9890 000 03841 9890 000 03842 B, C 9890 000 63841 9890 000 63842 9890 000 85001 9890 000 85002 B, C 9874 004 23122 9890 000 85831 9890 000 63181 9890 000 63182 B, C 9890 000 85301 9890 000 85302 9890 000 85281 9890 000 85282 B, C

B, C A, D B, C

B, C A, D

A, D B, C A, D

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Introduction and Technical Data NICOL X-Ray Beam Limiting Device

• Bucky Diagnost TH and Digital Diagnost for 9896 010 2216.

• Duo Diagnost for 9896 010 2217. and 9896 010 2223.

• Omni Diagnost Eleva for 9896 010 2224.

• CAN-CMS CIA (ISO-CAN 2a) standard

NOTE

The compatibility list is subject to change without notice!

________________

1.6.2 MECHANICAL DATA

• tube housing interface : standard BLD coupling flange

• BLD coupling flange -focus distance : 64mm

• Dimensions and Weight : see Table 4

Table 4: Dimensions and weight

9896 010

2216.

9896 010

2217.

9896 010

2223.

9896 010

Dimensions (lxwxh) 38.2 x 28.2 x22.4 [cm3] Packing dimensions 52 x 42 x 35 [cm3] Net weight Gross weight

± 130N ± 140N ± 160N ± 170N

1.6.3 ELECTRICAL DATA

• Power Supply interface : LA2X2 (see Table 5: Power Supply Interface) Control interface : LA2X1/LA2X11 (see Table 6: CAN Interface)

•

protective earth interface : LAX100

•

Table 5: Power Supply Interface

LA2X2 Mnemonic Description Specification

1 +24V +24V 2 0V24 0V of +24V 1.5A 3 +12V +12V 4 0V12 0V of +12V 8.3A

SH Shield connected to housing

Connector-type: 4p. Mate-N-Lock

24V DC ± 20%

12.0V DC ± 0.1V

100W

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NICOL X-Ray Beam Limiting Device Introduction and Technical Data

Table 6: CAN Interface

LA2X1

LA2X11

Mnemonic Description

1 - reserved 2 CAN-L CAN-L bus line (dominant low) 3 0VCAN 0V of CAN supply voltage 4 - reserved 5 - reserved 6 0VCAN 0V of CAN supply voltage 7 CAN-H CAN-H bus line (dominant high) 8 RSTCAN Reset-line CAN 9 +12VCAN +12V CAN supply voltage

(I

= 150mA, I

max

= 30mA)

typ

SH Shield

connector-type: LA2X1 shielded 9-pole miniature sub-D connector male LA2X11 shielded 9-pole miniature sub-D connector female

NOTE

The electrical cables are NOT included in the delivery

________________

1.6.4 SOFTWARE DATA

The SW is located on a single PROM, see Table 7:

Item code number contains code number Location

NICOL RAD V2 9896 010 2216. 1 prom NICOL R1.3.1 4522 166 10705 LA3D17 see Z3-3 NICOL DuoD V2 9896 010 2217. 1 prom NICOL R1.3.1 4522 166 10705 LA3D17 see Z3-3 NICOL DuoD+iris V2 9896 010 2223. 1 prom NICOL R1.3.1 4522 166 10705 LA3D17 see Z3-3 NICOL OmniD V2 9896 010 2224. 1 prom NICOL R1.3.1 4522 166 10705 LA3D17 see Z3-3

Table 7: SW overview

NOTE

The SW release is subject to changes without notification!

________________

1.6.5 E

NVIRONMENTAL CONDITIONS FOR TRANSPORT AND STORAGE

• Ambient temperature range : -25 - +70 °C

• Relative humidity : 5 - 95 %

• Atmospheric pressure range : 70 - 110 kPa

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Introduction and Technical Data NICOL X-Ray Beam Limiting Device

1.6.6 P

ERFORMANCE DATA

Rectangular shutters

• two pairs of independent, symmetrically moving main shutters, 3mm thick lead (mechanically coupled to backup shutters and near focus shutters)

• max. aperture : 2 x 14.4° (image receptor area 510mm at SID=100cm) minimum field size : < 2 x 2 mm (at SID=100cm)

•

Iris

• 4 circular shaped iris segments, lead 3mm thick, in combination with the rectangular shutters

• max iris segment aperture : 18.8° (image receptor area 680mm at SID=100cm)

• max circular aperture : 14.4° (image receptor area 510mm at SID=100cm)

• minimum field size : 90mm (at SID=100cm)

Spectral Filter

• Remote controlled, discontinuous rotatable filter disk, containing four selectable filter positions. For filter material and thickness, see Table 8: Filter material/position assignment.

• Filter switch time : < 350 ms (for adjacent filters)

< 700 ms (full range)

Table 8: Filter material/position assignment

9896 010 2216.

9896 010 2224.

9896 010 2223.

material Aleq

Filter

position

9896 010

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material Aleq

@75kV Position 0 no filter - no filter Position 1 1 mm Al + 0.1 mm Cu 4.0 mm 1 mm Al + 0.1 mm Cu 4.0 mm Position 2 1 mm Al + 0.2 mm Cu 6.5 mm 1 mm Al + 0.2 mm Cu 6.5 mm Position 3

No filter(s)

2 mm Al 2.0 mm 1 mm Al + 0.3 mm Cu 11.0 mm

Light

• Light source : 12V/100W halogen lamp

• Light intensity : > 193 lux (at SID=100 cm)

• X-Ray/Light Field accuracy : < 2% of SID in two directions

(including all X-Ray tube assembly tolerances) < 2.5 mm (at SID = 100 cm for BLD only)

• Contrast ratio : > 4

• Maximum duty cycle : 80%, max. on time 8 min.

• Lamp on period : 5 - 60 s (SW programmable, accuracy ±0.1s)

• Lamp switch off

2

temp. : 75°C

Ruler

• Range : 30 - 205 cm

• Accuracy : 1.4 cm (at SID=70 cm)

: 4 cm (at SID=205 cm)

• Resolution : 1 mm

@75kV

2

When the BLD has reached a temperature of 75°C, the lamp is switched off automatically (SW-

controlled). It is no longer possible to switch on the lamp, until the temperature is <75°C.

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NICOL X-Ray Beam Limiting Device Introduction and Technical Data

Swivel

• Range : +/- 45°

• Accuracy : 0.1° at 0° lock position

General

• Leakage radiation : <43 cGy/hr (or < 50 mR/hr) at 100cm.

• Inherent filtration : 0.22m Al equivalent @ 75kV (spectral filter NOT included)

• Max. X-Ray tube voltage : 150 kV

• Max. X-Ray tube power : 500W (for 9896 010 2216., for any filter)

350W (for 9896 010 2217., 9896 010 2223. and 9896 010 2224., any filter)

• Cold reset/warm reset : <30 s/<5 s

1.7 COMPLIANCE INFORMATION

Philips products comply with relevant international and national standards and laws. Information on compliance will be supplied on request by your local PMS representative, or by:

Philips Medical Systems PO Box 10.000 5680 DA Best The Netherlands

Facsimile: +31 40 276 2205

Philips products comply with relevant international and national law and standards on EMC (ElectroMagnetic Compatibility) for this type of equipment when used as intended. Such laws and standards define both the permissible electromagnetic emission levels from equipment and its required immunity to electromagnetic interference from external sources.

• IEC 60601-1 "Medical electrical equipment. Part 1: General requirements for safety" (second edition 1988, including

amendment nr. 1 (1991), amendment nr. 2 (1995))

• IEC 60601-1-2 "Medical electrical equipment. Part 1: General requirements for safety. 2. Collateral Standard:

Electromagnetic compatibility - Requirements and tests" (second edition, 2001)

• IEC 60601-1-3 "Medical electrical equipment. Part 1: General requirements for safety. 3. Collateral Standard: General

requirements for radiation protection in diagnostic X-ray equipment" (first edition, 1994-07)

• IEC 60601-1-4 "Medical electrical equipment. Part 1: General requirements for safety. 4. Collateral Standard:

Programmable electrical medical systems" (first edition, 1996-05)

• UL 2601-1 "Medical electrical equipment, Part 1: General requirements for safety" (second edition, October 1997)

• CAN/CSA -C22.2 No. 601.1-M90 "Medical Electrical Equipment. Part 1: General requirements for safety" (November

1990, including Supplement C22.2 No. 601.1S1-94 and Amendment nr. 2 (1998))

• 21CFR, Subchapter J

•

IEC 60601-2-28 "Medical electrical equipment. Part 2: Particular requirements for the safety of X-ray source assemblies and X-ray tube assemblies for medical diagnosis" (first edition, 03-1993)

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Introduction and Technical Data NICOL X-Ray Beam Limiting Device

ONDITIONS OF ACCEPTABILITY

1.8 C

The BLD is compatible with:

• X-ray tube assemblies, which meet the requirements as specified in the table below.

Leakage Radiation

≤ 0.43 mGy/h (≤ 50mR/h) at conditions 150kV, 3mA and 100cm

distance. Values of loading factors concerning leakage radiation For RAD

<500 µSv/h

at conditions 150kV, 500W, 12000

mAs/h, 100cm distance. For DuoD/DuoD+iris/OmniD <500 µSv/h

at conditions 150kV, 350W, 8400 mAs/h, 100cm distance

Inherent Filtration

≥2.5 mm Aleq at conditions 150kV, 3mA

Distance Focus - Coupling Flange Interface Plane

64mm ± 2mm

• X-ray systems, which meet the requirements as specified in the table below.

Misalignment of the edges of the of visually defined Field with

≤ 1% of SID the respective edges of the X-ray Field along either the length or the width of the visually defined field.

Alignment of the centre of the radiographic X-ray Field with the

≤ 1.5% of SID center of the image receptor

1.9 ABBREVIATIONS AND DEFINITIONS

Abbreviation Explanation

AEP Area Exposure Product Aleq Aluminum equivalency BLD Beam Limiting Device DuoD Duo Diagnost FRU Field Replaceable Unit FSE Field Service Engineer OmniD Omni Diagnost PMS Philips Medical Systems P&P Plug & Play RAD Radiography RF Radiography / Fluoroscopy SID Source Image Distance V2 Version 2

Protective Earth (ground)

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NICOL X-Ray Beam Limiting Device Introduction and Technical Data

1.10 M

ANUAL HISTORY

Original Text : English

Date Version Name Reason of changes

19th June 1999 99.0 P.W.M. Sijbers First Version 9th September 1999 99.1 P.W.M. Sijbers 31st August 2000 00.0 P.W.M. Sijbers 31st October 2001 01.0 P.W.M. Sijbers 3rd December 2003 03.0 P.W.M. Sijbers

17th March 2004 04.0 P.W.M. Sijbers

• NICOL OmniD (9896 010 2224.) added.

• Chapter Conditions of Acceptability added.

• Document updated due to changed PEI-

numbers

• Chapter “1.6.1 Compatibility” extended for new tubes and Nicol V2

• Chapter “2.2.1 Mounting the Coupling Flange Nicol V2” added

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Installation NICOL X-Ray Beam Limiting Device

2 INSTALLATION

2.1 INTRODUCTION

This chapter contains general instructions about the installation of the BLD. For specific information at system level, refer to the relevant system reference manual.

2.1.1 TOOLS & TEST EQUIPMENT

• Standard Service Toolkit

• BLD alignment tool, code number 4522 980 31521, available from Service Logistics Best.

2.1.2 S

The BLD is delivered as part of a pre-installed system or in a single package, always containing:

2.2 I

Whenever replacing a BLD, no centering is required, provided the coupling flange is left on the X-Ray

UPPLIED ITEMS

• BLD (including aesthetic cover)

• Coupling flange assembly (to mount and adjust the BLD on the X-Ray tube housing)

• Four countersunk screws (M6x25mm) (used for mounting the shipping bracket to the coupling

flange, also are intended to mount the coupling flange to the X-Ray tube housing)

• Service Manual (No Operator Manual supplied)

NSTALLATION INSTRUCTIONS

• Remove the items from the packing and check them against paragraph 2.1.2 Supplied Items, for completeness.

• Install according sequence table below

NOTE

tube housing.

________________

1 Chapter 2.2.1 Chapter 2.2.2 2 - Chapter 2.2.3 3 Chapter 0 Chapter 0 4 Chapter 2.2.5 Chapter 2.2.5 5 Chapter 2.2.6 Chapter 2.2.6

Installation

NICOL V2

Table 9 Installation sequence

Installation NICOL V2

as replacement of NICOL

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2.2.1 M

OUNTING THE COUPLING FLANGE ASSEMBLY NICOL

V2

This chapter describes the mounting procedure in case a pre-aligned X-ray Tube Assembly is used.

• Unscrew the locking plate screw (item 5, Figure 3, page 19) from each of the two locking plates (item 1, Figure 3) and push them outwards as far as possible.

• Remove the shipping bracket (item 2, Figure 3) together with the coupling flange (item 3, Figure

3) from the BLD

• Unscrew the shipping bracket from the coupling flange (countersunk screws M6 x 25 mm must be reused to mount the coupling flange on the tube housing.)

NOTE

Check the screw required length (25 mm) in the applicable tube housing service documentation.

At least 5 mm must be screwed into the tube housing.

________________

• Place the coupling flange (item 1, Figure 1) on the X-Ray tube housing (item 2, Figure 1) with factory mounted alignment ring (item 3, Figure 1)

• Positioning the reference pin (item 4, Figure 1) to the notch (item 5, Figure 1) of the alignment ring. Secure it with the four countersunk

•

screws M6 x 25 mm (item 6, Figure

1) and rings (item 7, Figure 1 )

• For screw length, see note above.

• Proceed with chapter 0 page 19.

CAUTION

Never loosen lacquered screws

(item 8, Figure 1. This will ruin the factory

alignment of the focus.

For realignment, the X-ray Source

assembly must be returned to Hamburg.

________________

Figure 1: Mounting the P&P coupling flange

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Installation NICOL X-Ray Beam Limiting Device

2.2.2 M

OUNTING THE COUPLING FLANGE ASSEMBLY

• Unscrew the locking plate screw (item 5, Figure 3, page 19) from each of the two locking plates (item 1, Figure 3) and push them outwards as far as possible.

• Remove the shipping bracket (item 2, Figure 3) together with the coupling flange (item 3, Figure

3) from the BLD

• Unscrew the shipping bracket from the coupling flange (countersunk screws M6 x 25 mm must be reused to mount the coupling flange on the tube housing.)

NOTE

Check the screw required length (25 mm) in the applicable tube housing service documentation.

At least 5 mm must be screwed into the tube housing.

________________

• Place the coupling flange (item 1, Figure 2) on the X-Ray tube housing (item 2, Figure 2), positioning the 0° notch (item 5, Figure 2) to the rear of the X-Ray tube housing, and secure it with the four countersunk screws M6 x 25 mm, item 3, Figure 2. (see note above)

Figure 2: Mounting the coupling flange assembly

2.2.3 CENTERING THE BLD WITH RESPECT TO THE X-RAY TUBE

All BLD functions have been accurately centered in the factory, relative to the central axis; any further centering has to be done by adjusting the coupling flange assembly of the BLD with respect to the XRay focus. The specified alignment tool must be used. The centering procedure is described in paragraph 6.1.4, page 40. This procedure must be carried out:

• After replacement of NICOL DISC 4522 300 2417x

• After replacement of the X-Ray tube, configurations A and D of Table 3.

• NOT for replacements of NICOL and NICOL V2

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NICOL X-Ray Beam Limiting Device Installation

2.2.4 M

Carefully mount the BLD to the coupling flange, in order not to DAMAGE the near focus shutters!

OUNTING THE

• Slide the two locking plates (item 1, Figure 3) outwards as far as possible.

• Mount the BLD on the coupling flange assembly, with the 0° locking mechanism (item 4, Figure

3) to slide into the notch (item 3) of the coupling flange

• Slide the two locking plates inwards to their end stop

• Secure the two locking plates to the coupling plate with the two screws (item 5)

• Check whether the BLD is properly secured

BLD

ON THE

AY TUBE HOUSING

X-R

NOTE

________________

Figure 3: Mounting the BLD to the coupling flange

NOTE

It is strongly advised, to mount the BLD on the X-Ray tube housing without removing the aesthetic

covers first. This allows a better grip of the heavy BLD, and prevents damage to the ruler, when lifting

the BLD by holding the ruler by accident.

________________

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