Questions tagged [particle-detectors]
the tools used to detect (and sometimes) characterize ionizing radiation. This tag is appropriate for question about the characteristics and behavior of all such devices from the simplest Geiger-Muller tube, to the compound monsters used by high-energy experiments to the mega-ton instrumented volume of IceCube.
308 questions
4votes
1answer
145views
Standard deviation on particle detector efficency
First time posting here, so indulge with me if I do not respect yet the formatting. In the context of a particle physics work, I am studying the efficency of a detector. More precisely, its efficency ...
- 111
2votes
1answer
58views
Neutron detection efficiency in plastic scintillators
What is an estimate of the detection efficiency of incoming neutrons with kinetic energies of 150MeV and 200MeV for an 'average' multi-purpose plastic scintillator per cm of material depth? Obviously, ...
10votes
2answers
1kviews
Are these plastic scintillators still usable?
I am working on a project to create and launch a weather balloon with a particle detector system attached to it to measure muon flux at different altitudes. The previous project lead decided to drill ...
- 103
0votes
0answers
31views
Solid angle for rectangular detector
I was asked about how to calculate the solid angle for a detector consisting on two rectangular plates of the same dimensiones ($l\times w$) placed one above other a distance $d$ apart, like the ...
- 31
0votes
2answers
73views
Is it possible to detect a photon using gravity without information about its emission and absorption?
Is it possible to detect a photon using gravity without information about its emission and absorption? Speculation. Body No.1 emits a photon and changes its momentum. The photon passes by body No.2 ...
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3votes
0answers
234views
How do you build a Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) detector?
*Milkjug-sized neutrino detector (the COHERENT neutrino detector): https://news.uchicago.edu/story/worlds-smallest-neutrino-detector-observes-elusive-interactions-particles#:~:text=The%204%2Dinch%...
- 47
0votes
1answer
94views
Fitting function to compton continuum of data measured by scintillator detector
I have measured the spectrum of $ \:^{60}$Co with an NaI-scintillator detector. Now I want to fit a function to the measured compton continuum. My idea was, that the measured counts are proportional ...
0votes
0answers
80views
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 ...
- 4,460
2votes
1answer
162views
Why is the compton continuum so uniform?
According to the Klein-Nishina model, a photon that undergoes compton scattering will scatter at different angles preferentially according to its energy, shown in the image below. Then, looking at ...
- 125
0votes
1answer
52views
High resistivity silicon detector
How is the resistivity of the silicon detector is related with the depletion of the detector bulk? In a thesis I read that to achieve low full depletion voltage, a high resitivity silicon detector is ...
2votes
1answer
116views
Why LHCb detector is one-sided?
In LHCb, how do all the produced particles go in one direction i.e. in the forward direction? Is the proton beam at rest coming from the opposite direction?
-3votes
1answer
130views
Measurement in Double Slit Experiment
In physics, the observer effect is the disturbance of an observed system by the act of observation. A notable example of the observer effect occurs in quantum mechanics, as demonstrated by the double-...
0votes
0answers
21views
How to calculate or estimate an energy deposition inside $\rm BeO$?
I wonder how one could or would calculate the energy deposition inside e.g. $\rm BeO$. To simplify the radiation source shall be a photon with 160 keV and $\rm BeO$ is 0.5 mm thick and 1 mm² wide.
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1vote
0answers
51views
Offset in fortuitous coincidences in Na22 PET scan
I'm doing a PET scan for a Na22 radioactive sample and analysing the fortuitous coincidences. To measure the fortuitous coincidences I put both detectors in a 90º angle and gathered the number of (...
- 160
2votes
1answer
71views
Can the time varying Intensity of an electric field of a wave be measured?
Lets say that we have a detector which we use to measure the intensity. Theoretically, the intensity is a varying function of time (When we calculate the Poynting vector) but often in textbooks they ...
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