safety at biomax for users
TRANSCRIPT
Safety at BioMAX for users
Introduction
“Safety at BioMAX for users” (this training) is needed to get access to beamline specific areas of the BioMAX beamline.
The “Safety introduction for users” should be studied first.
In addition to the online safety trainings, each user should also receive an on-site introduction to the beamline by beamline staff at the start of the beam time. The on-site training is required to be allowed to search the experimental hutch or to use the sample preparation lab at the beamline.
Safety at BioMAX for users / Introduction
BioMAX beamline location
Safety at BioMAX for users / BioMAX beamline
BioMAX beamline
BioMAX beamline
Safety at BioMAX for users / BioMAX beamline
Optics hutch
Experimental hutch
Analysis room
Control room Sample preparation
3 GeV ring tunnel
Experimental hall
Radiation safety
Access to controlled areas
After successful completion of this training (“Safety at BioMAX for users”) you are allowed to access the experimental hutch at the beamline.
Access to the other controlled areas at the MAX IV facility, i.e.
● BioMAX optics hutch
● Hutches of the other beamlines
● Accelerator areas
is not allowed.
Safety at BioMAX for users / Radiation safety / Access to controlled areas
Optics hutch(no access)
Experimental hutch
Entry to the experimental hutch
The doors to the hutches are locked and a MAX ID card is needed to unlock them. Access is only allowed if the green information light above the door is lit.
The door is unlocked by swiping the access card at the tag reader. The door will not unlock if radiation may be present or if the sample changer is in motion. A green and a red light next to the tag reader indicates if the attempt to unlock the door was successful or not.
In the event of an emergency, it is always possible to unlock the door by pressing the black emergency door release button.
Safety at BioMAX for users / Radiation safety / Entry to the experimental hutch
Entry to the experimental hutch
An electronic dosimeter must be carried within the hutch and is available at the entry points.
The electronic dosimeters are always on and you should only check that the battery is OK, i.e. that dose information is shown on the display. The dosimeter shows the accumulated dose and, after pressing its button once, the current dose rate.
Instructions are posted at the entrances to the hutches describing how to enter and under what conditions entry is allowed. These instructions must be studied before entry.
Safety at BioMAX for users / Radiation safety / Entry to the experimental hutch
Inside the experimental hutch
Panels located within the hutch contain sirens and warning lights for radiation hazard (red) and search status (orange).
One of the sirens is active during the search procedure. The other siren is active for 30 seconds when the search has been completed and for 30 seconds when the beam shutters are opened.
If you should see the red lights lit while inside the hutch, you must immediately exit the hutch and tell others to do the same. Press an emergency stop and call the radiation safety officer when you have exited the hutch.
Safety at BioMAX for users / Radiation safety / Inside the experimental hutch
Inside the experimental hutch
Inside the hutch there are buttons related to the search procedure and emergency stops. The emergency stops shut down all radiation sources. The emergency stops also shut down the motion of the sample changer.
If an electronic dosimeter alarm is triggered, you must immediately exit the hutch and tell others to do the same. Press an emergency stop and call the radiation safety officer when you have exited the hutch.
Safety at BioMAX for users / Radiation safety / Inside the experimental hutch
Exit from the experimental hutch
The doors to the experimental hutch are locked by electromagnetic locks. To unlock the door from the inside, press the button with the key symbol.
In the event of an emergency, it is always possible to unlock the door by pressing the black emergency door release button.
Close the door if you are the last person to exit the hutch.
Return the electronic dosimeter.
Safety at BioMAX for users / Radiation safety / Exit from the experimental hutch
Search of the experimental hutch
The hutch has to be searched before radiation can be present. An on-site prac-tical training is required to be allowed to search the experimental hutch.
The orange warning lights inside and orange information lights outside the hutch flashes during the search and are lit when the search is completed. During the search sirens inside the hutch are active.
If you are inside the hutch when someone else starts a search you should quickly exit the area. If this is not possible, you should press an emergency stop, which will abort the search.
Safety at BioMAX for users / Radiation safety / Search of the experimental hutch
Performing a search
Inform everyone inside the hutch that the hutch will be searched and that they should exit the area.
Close all doors (the main access door that you will use to exit the area can stay open). If a door is opened during the search or if the light curtain detects an object the search is aborted.
Perform a search and ensure that no one is present in the hutch (see next slide).
Radiation is permitted in the hutch after a 30 second warning period.
Search instructions are posted at the main entrance to the hutch.
Safety at BioMAX for users / Radiation safety / Performing a search
Performing a search
1. Press the (green) initiate search button.
2. Ensure that no one is present in the hutch and press the first, second and third (blue) search button as they start flashing.
3. Press the (white) exit during search button, exit the hutch and close the door.
4. Press the (yellow) complete search button.
By performing and completing a search you are personally responsible that no one is inside the area.
Safety at BioMAX for users / Radiation safety / Performing a search
12A
2B2C
3
4
User chicane
It is not allowed to open the regular chicanes without a radiological work permit. For temporary cabling a user chicane should be used. The user chicane can only be opened when the hutch is not searched.
Pressing the key button next to the chicane will deactivate the magnetic lock during 10 seconds. Open the chicane while the green light is lit.
Ensure that the magnetic lock is active when the chicane has been closed. It is not possible to initiate a search unless both sides of the user chicane are closed.
Instructions are posted on the chicane.
Safety at BioMAX for users / Radiation safety / User chicane
Chemical safety
Chemical safety at BioMAX
● The BioMAX preparation lab is not a chemical lab. There are limits on what type of work you are allowed to do at the beamline.
● Adhere to local regulations and work instructions.
● Keep your work area nice and tidy.
● Label and store your samples and chemicals according to local rules.
● Use appropriate Personal Protection Equipment (PPE).
● It is forbidden to eat, drink, smoke, use snuff, apply makeup, store food or drinks where hazardous chemicals are handled.
Safety at BioMAX for users / Chemical safety / Chemical safety at BioMAX
BioMAX preparation lab.
Working with Liquid Nitrogen (LN2)
The preparation lab and the experimental hutch at BioMAX are areas were Oxygen deficiency pose a hazard.
● LN2 is handled in open containers and dewars.
● Always use required PPE.
● In case of any Oxygen alarm goes off, your first action is to evacuate the area out to the experimental hall. Try to keep doors open. Tell others to evacuate the beamline out to the experimental hall and then call your local contact.
● In case of any serious accident, call 112.
Safety at BioMAX for users / Chemical safety / Working with Liquid Nitrogen (LN2)