Schrader (ppt)

XFEL

X-Ray Free-Electron Laser

XFEL

The European XRAY-Laser Project in Northern Germany

The Safety-Concept

1. What is the XFEL

2. XFEL – Progress of Planning

3. Components

4. Safety Concept

XFEL


XFEL The European XRAY-Laser Project in Northernn Germany The Safety-Concept Stefan Schrader April 2005 1

XFEL


1. What is the

XFEL

?

XFEL



XFEL


What is the

XFEL

?

Science with

Synchrotron-Radiation

Accelerator as Super-Light-Source

If particles fly around a bend, they send out a wide spectrum of bright light:

Synchrotron-Radiation

• Science at surfaces

• Science with matter

• Molecularbiology

• Medicine

• Chemistry

• Geology

• ...

XFEL



XFEL


The way to X-RAY-Laser

XFEL


For over 100 Years:

X-RAYS

– Penetrate matter

– The wavelength fits to the distance of the atoms

Since then:

– Further developements of

X-RAY-tubes were made

– Synchrotron-Radiation-Sources

(at DESY since 1964)

To see what the eye doesn´t see


XFEL


What do they wish to do?

Watching of:

– Single molecules (3dimensional)

– Movings and chemical reactions

Ultrashort super bright light flashes to watch fast reactions at atomic layer

XFEL


Idea:

Combining the qualities of X-RAY-light and la ser-light in the X-RAYFree-Electron-Laser


XFEL


The possibilities of XFEL

• atomic solution

 structure of molecules

• bright light flashes (billion times brighter than up to now)

XFEL



XFEL


The possibilities of XFEL

• short light flashes

(<100 Femtoseconds)

• in fast flashings recording of chemical reactions

• You can see how a muscle moves or catalytic processes work

new applications in biology, pharmacy, science of life

XFEL



XFEL


XFEL


2. XFEL – Progress of Technical Planning


XFEL


Neighbour Village

Schenefeld

XFEL


– ~02/2003: Ministry of Science: decision to realise XFEL as European Project

– ~10/2003: Decision for the site at Schenefeld

– ~ 12/2003: Establishing of a workgroup at DESY for the preparation of the PA P

– 29/09/2004: The treaty between Hamburg and Schleswig-Holstein gets signed

– 01/01/2005: Begin of the treaty between Hamburg and Schleswig-Holstein


XFEL


Overview 2005/2006 XFEL


• Technical Planning XFEL finished

• Version zero of plan approval procedure ( PAP ) ready

• Motion for plan approval procedure

• Layout of documentation for the public

• End of Layout

• Date of discussion with authorities

• Resolution for PAP

• Start of construction work

10.12.2004

15.01.2005

15.04.2005

01.05.2005?

15.06.2005?

01.10.2005?

End 2005?

Autum 2006?


XFEL


3. XFEL – Components

XFEL



XFEL


Marked-out route XFEL

Schenefeld

2nd Part

1st Part

Osdorfer Born

Beam

DESY

XFEL



XFEL


Components

of XFEL XFEL


- Total length ~3300 m (~11.000 ft.)

- Depth 8 to 25 m (26 to 75 ft.)

- Tunnel diameters 5.2 m and 4.5 m (~ 18 ft. and 15 ft.)

- 12 shafts for both parts

- 2 experimental halls 50 m x 90 m (~ 164 ft. x 295 ft.)

Schenefeld


XFEL


Components

of XFEL XFEL


2,1 km (~ 6900 ft.) superconducting accelerator at 2 Degrees Kelvin

Schenefeld


XFEL


Components

of XFEL

1,2 km (~ 4000 ft.) XRAY-“Junctions“ with the undulators

DESY

XFEL



XFEL


Components

of XFEL

Experimental hall with the first 10 measuring huts

DESY

XFEL



XFEL


Site of Schenefeld XFEL


Photonbeam


XFEL


3. XFEL – Safety concept

XFEL



XFEL


The safety concept XFEL


The safety concept is compiled by

Prof. Dr.-Ing. Alfred Haack

STUVA

(Studiengesellschaft für unterirdische Verkehrsanlagen e.V.)

and the XFEL-workgroups at DESY


XFEL




Main-targets in case of emergency:

1. Guarantee of Personal Safety

2. Guarantee of Plant Safety


XFEL




This has to be reached during equipment, run- and maintenanceperiods by:

1. Technical measures

1.1 Definition of fire- and smoke-separations

1.2 Smoke extraction

1.3 General safety installation

1.4

Installations (cables, transformers, electronics) that are as fireproof as possible

AND

2. Organizational measures

3. Personal measures


XFEL




Separate consideration of standard buildings and tunnels and shafts

 Standard buildings similar to building regulations of Hamburg and

Schleswig-Holstein

 Technical buildings similar to Industrial Building Regulation

 Experimental hall, tunnels and shafts

Which regulations to use???


XFEL




Our problem:

There are no standards for our XFEL-underground buildings.

Our task:

Definition of our own rules for PAP for these buildings

.

Lets focus on buildings:

Experimental hall, tunnels and shafts:

 special scientific underground buildings

 no standards for scientific underground buildings

 we proceed similar to traffic tunnels and stations


XFEL




If we compare traffic tunnels and stations with the XFEL, we have

• underground buildings

• a great number of people (up to several thousand)

• difficult and long escape routes

At XFEL only the number of employees in possible hazardous areas is smaller and we only have instructed and trained people.

The basic rules for traffic tunnels and stations can be adapted to shafts and tunnels.

(Length of tunnels, evacuation speed, safety measures)


XFEL




General Safety Standards for XFEL:

Shaft buildings (XSx):

Underground building up (or better down) to 7 floors

 Solid fire- and smoke-separation between tunnel and shaft

 Smoke detecting system for each building with pushbuttons and evacuation alarm

 Escape routes: safety stair case, ladders in media shafts and tunnels

 Safety stair cases with overpressure ventilation

 Safety elevator for use of fire brigade

 Access control system with personal tag

 Escape routes < 35 m to next safe area


XFEL


The safety concept


XFEL


Injector shaft XSIN

Injector tunnel XTIN

Entry shaft XSE


XFEL


The safety concept


1st Junction shaft

XS1

XFEL



XFEL


Standort Osdorfer Born: Strahlverzweigung XFEL


tunnel at the junction shaft near Osdorfer Born


XFEL


The safety concept


LINAC Tunnel (XTL):

XFEL



XFEL





LINAC Tunnel (XTL):

 Solid fire- and smoke-separation between tunnel and shaft

 Fire- and smoke-separation inside tunnel each 600 - 700 m long escape routes!

 2 escape routes: both directions of tunnel

 Smoke detecting system with push buttons and evacuation alarm

 Smoke extraction channel


 Oxygen self rescuer for minimum 30 minutes


XFEL





LINAC Tunnel (XTL):

 Separation in the tunnel

(600 – 700 m)

 Separation wall with three water mist curtains to wash out possible smoke in case of a fire

 No solid door inside the tunnel to ease transports and work


XFEL


The safety concept


LINAC Tunnel (XTL):

 following definition was made:

 Self rescue time

(700 m => 1.5 m/s => max. 8 minutes to reach next safe area)

 Rescue by emergency service or fire brigade from 8 minutes on

XFEL


1.5 m/s = walking speed

(only instructed and little number of employees, compared with passengers in stations, no handicapped persons)


XFEL





LINAC Tunnel (XTL): Where is the biggest fire risk for the first 8 min?

??

Smoke extraction through extraction channel with flaps each

50 m

Cables ?

Electronic racks ?

Klystrons ?

Oil-transformer ?


XFEL





LINAC Tunnel (XTL):

Fire protection of installations

 Cables are not readily combustible (FRNC)

 Electronic racks are provided with a gas extinguishing system

 Oil-transformers are provided with a water mist extinguishing system


XFEL





LINAC Tunnel (XTL):

 A computer fire simulation was made at STUVA and showed that the decision with max. 700 m separation and 8 minutes self rescue time is acceptable.

 After the end of the self rescue time the smoke reaches the separations and sinks down.


XFEL


The safety concept


Photon Tunnel (XTDs):

XFEL



XFEL





Photon Tunnel (XTDs):

 Solid fire- and smoke-separation between tunnels and shafts

 No fire- and smoke-separation inside tunnel, max. 600 m long escape routes!

 2 escape routes: both directions of tunnel

 Smoke detecting system

 with push buttons and evacuation alarm

 Smoke extraction through whole tunnel diameter!

 Oxigen self rescuer for minimum 30 minutes



XFEL


The safety concept


Experimental Hall (XHEXPx):

• Solid fire- and smoke-separation between tunnel and hall

• Smoke detecting system in the hall with pushbuttons and evacuation alarm

• 7 escape routes: 2 safety stair cases, 5 into tunnels

• Safety stair cases with overpressure ventilation

• Safety elevator for the use of fire brigade

• Access control system with personal tag

• Escape routes < 35 m

• Smoke extraction

XFEL



XFEL


The safety concept



Offices, labs, auditorium

XFEL



XFEL


The safety concept



Photon tunnel

XFEL


12.5 m

(~ 40 ft.)


XFEL





Experimental Hall (XHEXPx): 50 m x 90 m (~ 164 ft. x 295 ft.)

Experimental huts

Photon tunnels


XFEL


XFEL



Schrader (ppt)

XFEL

The Safety-Concept

1. What is the

?

XFEL

Science with

Synchrotron-Radiation

Accelerator as Super-Light-Source

The way to X-RAY-Laser

For over 100 Years:

X-RAYS

Since then:

To see what the eye doesn´t see

What do they wish to do?

new applications in biology, pharmacy, science of life

2. XFEL – Progress of Technical Planning

Schenefeld

3. XFEL – Components

Components

Components

Components

Components

3. XFEL – Safety concept

The safety concept is compiled by

Prof. Dr.-Ing. Alfred Haack

STUVA

and the XFEL-workgroups at DESY

Which regulations to use???

.

tunnel at the junction shaft near Osdorfer Born

Related documents

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Schrader (ppt)

XFEL

The Safety-Concept

1. What is the

?

XFEL

Science with

Synchrotron-Radiation

Accelerator as Super-Light-Source

The way to X-RAY-Laser

For over 100 Years:

X-RAYS

Since then:

To see what the eye doesn´t see

What do they wish to do?

new applications in biology, pharmacy, science of life

2. XFEL – Progress of Technical Planning

Schenefeld

3. XFEL – Components

Components

Components

Components

Components

3. XFEL – Safety concept

The safety concept is compiled by

Prof. Dr.-Ing. Alfred Haack

STUVA

and the XFEL-workgroups at DESY

Which regulations to use???

.

tunnel at the junction shaft near Osdorfer Born

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