Questions tagged [experimental-technology]
Use this tag for questions pertaining to the limits, management, and operation of equipment necessary to experimental physics. This tag is not intended for "does this thing I heard about actually work" type questions.
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Are there any recorded time-of-flight (ToF) measurement data for the $H\to\gamma\gamma$ collision products at the LHC Atlas detector?
Especially, I am interested in the time-of-flight (ToF) measured recorded values of the two $\gamma$-photons (diphotons) during $H \to\gamma\gamma$ Higgs boson detection events at the LHC Atlas ...
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Spinning top stabilisation for a type of aircraft/drone
Spinning tops use gyroscopic precession to be able to stay upright whilst spinning.
Would it be possible to use this phenomena to create a flying craft that would be stabilised by gravity and the ...
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How much power does it take to maintain the high vacuums in advanced physics experiments?
The LIGO Gravitational-Wave Observatory and CERNs Large Hadron Collider both have some impressive ultra-high vacuum systems. For my project proposal I need to demonstrate some understanding of how ...
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An optical detector that guarantees single-photons detection
Let's consider a real source emitting a sequence of single-photons (like for example a N-V colour centre pumped with a pulsed laser with highly accurate frequency of the pulses). I want to ...
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How accurate is coincidence counting, and how do we know?
Experiments that feature the creation of entangled photons through SPDC often make use of coincidence counters. How can one photon be accurately correlated with its entangled partner by a coincidence ...
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Can BBAR coatings be neglected in refraction problems?
I am a total novice to experimental optics problems, so I apologize if this is naive. I am wondering whether I can neglect a BBAR coating when calculating an angle of refraction at near-normal ...
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Why were multiple layers of absorbers and scintillators used in the CMS HCAL?
Why were multiple layers of absorbers and scintillators used in the CMS HCAL? Couldn't they have used just one absorber and one scintillator layer? Why was the choice made to have multiple layers?
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When X-ray produced why 99% of the energy is in the form of heat and 1% in the form of X-rays. Why it it not more then that?
When the electrons hit the anode in an X-ray tube, 99% of their energy is released in the form of heat and 1% of that energy is X-rays. Why it is only 1% and not 2% or 3%?
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Do we experimentally know how a magnet reacts in a curling / non-zero-curl magnetic field?
There are two possible formulas for the magnetic force on a magnetic dipole moment due to the inhomogeneity of the magnetic field:
$$ \vec{F}_{A} = \nabla (\vec{m}\cdot\vec{B}) \qquad\text{ and }\...
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How efficient are coincidence counting techniques?
Obviously there is a limitation as to how well experimental configurations that depend on coincidence counting can efficiently remove the noise present at any given experiment. This leads me to ...
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UHV chamber starts oscillating once the pressure gets down to $2.5 \times 10^{-5}$, Why?
Using a new Edwards nXDS15iC scroll pump as a roughing pump for a new Kurt Lesker EMT3304 turbo pump. Chamber is a cylinder about $100{\textrm{ ft}^3}$. We have identified leaks and corrected using a ...
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How hard is it to obtain perfect alignment of optical equipment?
While reading a published paper, I read that some photons were being detected at the arm of a Michelson interferometer which was intended and set to have approximately perfect deconstructive ...
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Are there any specifications required for the computer which would be connected to Computer Automated Measurement and Control (CAMAC)?
I wanna buy a computer to use with Computer Automated Measurement and Control (CAMAC).
Are there any specifications required for the computer which would be connected to CAMAC?
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Efficiency of Geiger-Muller tube
What are the factors that affect the efficiency of the Geiger-Muller tube?
*the efficiency of the tube is defined as # of pulses counted per second/total flux entering the detector.
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Properties of the gas in a Geiger-Muller tube
Why does the gas filling a Geiger-Muller tube have to be inert and at low-pressure?
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