SCP-XXXX Is to be contained in a 6x6m cell in Site 15.
Cells are 3D objects, so you need three figures there, not two. 6m x 6m x ?m
All interaction must be approved by Dr.Helmn
It's not good to have one named doctor associated with an SCP object, simply because, in-universe, that doctor may get sick, die, or just transfer. Saying 'All interaction/testing must be approved by Level 3 Personnel' or 'the Project Head' is fine.
**Description:
Formatting is off here.
SCP-XXXX Is an large MRI Machine,found in the public hospital of ████████.
Your spelling and grammar is all over the place. It is hard for people to read and review fairly when this needs a major, major change. If you need help with English, you can find help online based on your age/grade. But it's not fair to jump on people who are, fairly, talking about your SPAG issues.
So here, for example, it should be 'SCP-XXXX is a large MRI machine, found in the public hospital of [BLANK].'
Additionally, how 'large'? MRI machines are, by nature, large, so if it's natural, you don't need to include it. If it's unusually large, you should include the measurements.
During the time SCP-XXXX is active,a large quantity of energy will be used.
'Energy' is vague here. I assume you mean electricity, but you may need to clarify. It would also be good if you clarified if it used more electricity than usual, as MRI machines are naturally power drainers.
The tests don't really add anything. They're dull. So basically, the longer a living subject is in the machine, the higher chance for side effects, that's what I'm getting from this. But there's nothing else to get from this. There's nothing interesting to keep the reader, reading. It just makes the item go away, then come back. Bing. Nothing. If you look at a similar item, SCP-294, the concept of it on paper is rather dull, but the tests save it from being that way. What could you add to your idea to give it more of a narrative, a story?