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 ...

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89 views

Using tracking detector in a double slit experiment, what would we see?

Let's say we put tracking detector (eg. a cloud chamber or a more advanced device) behind the double slits. What would we see? I think the interference pattern is three dimensional. So there are ...
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1answer
13 views

Detection of the He-nuclei in the historical Rutherford scattering experiment

Which method did Rutherford use to detect the Helium nuclei in his scattering experiment?
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60 views

Trace of gamma particle

Can we have a detector, making traces of gamma particles (gamma photons) visible? Usually they are invisible until pair born or something. UPDATE G-M tube can detect gamma particles. Can we put ...
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0answers
44 views

Sensitivity of Cloud Chamber

I have been watching some videos on cloud chambers: https://www.youtube.com/watch?v=Efgy1bV2aQo and they are quite amazing. What I can't figure out, is why aren't these chambers over loaded with ...
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62 views

Alternative ways to take particle tracks photographs in a cloud chamber

I know that the most common type of particle tracks photography is in photographic plates, but i'm using a cloud chamber and I would like to know if there are alternative ways to take photographs of ...
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0answers
37 views

What are the main issues limiting resolution of gamma ray detectors?

Current gamma ray detector resolution is far from diffraction limited. For example, Swift's Burst Alert Telescope has a resolution of 1-4 arcminutes for gamma ray bursts (Wikipedia:Swift). My ...
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0answers
270 views

What does it take to recreate double slit experiment with detectors?

Is there anyway to recreate this experiment with detectors at home? I want detectors because I want to get non interference pattern too. I have a little know-how in electronics so If I need to buy a ...
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0answers
121 views

How the dielectric rigidity depends on the shape of material?

A research article says that, "The conical shape improves the dielectric rigidity", but how I am not able to understand.
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30 views

How do modern particle detectors identify and segregate different particles

What is the specific particle detector technology used at CERN or similar Institutions. Is it essentially a big digital camera? When said particles are detected, how are they segregated, How does this ...
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0answers
33 views

Is a deviation from the equal flavor ratio of neutrinos ruled out experimentally?

Neutrinos have a lifetime which exceeds the lifetime of our universe. Therefore we measure an equal ratio of all three neutrino flavors, 1:1:1. However, lets assume that the heavier neutrinos can ...
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32 views

What does “fully depleted” mean?

In many papers/articles on CCDs, particularly those used for dark energy surveys and dark matter detection, the term "fully depleted CCD" is used. What does this mean? References: http://arxiv.org/...
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53 views

Do twice more atoms absorb twice more photons?

Let's assume you have a photon detector that detect individual photons striking it when exposed to a weak light source. Now let's assume you somehow managed to make a denser detector from the same ...
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0answers
181 views

Radiation Safety of some Particle Accelerators in CERN?

I am trying to study the radiation safety and what kind of roles are required there with particle accelerators. Radiation safety groups of CERN is here. I contacted their a few members of them. I ...
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41 views

Superconducting loop as a particle detector?

Imagine that one has induced a persistent current in a superconducting loop. If a particle interacted with an electron in one of the Cooper pairs then would some decoherence and dissipation occur? I ...
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0answers
61 views

Recover activity from photo at Fukushima

This photo was published at stern magazine online. I wonder which information about the physical quantities could be reconstructed or computed given this photograph, the exposure time, and the ...
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0answers
66 views

The things to consider when choosing a mesh for an electron detector (MCP detector)

I am designing a electron velocity map imaging setup. I need a copper mesh just infront of the detector to accelerate the electrons towards the MCP detector. I am doing the instrument design for the ...
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0answers
311 views

How do I calculate the Radiation length of a Molecule

I want to calculate the Radiation length in a Molecule with the Formula given on wikipedia. How do I calculate Z and A for a molecule to put it into the Formula?
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22 views

Exercise: Calculating Q-value for $D_0 \to \chi_s^-e^+\nu_e$

Question Is the following methodology correct in calculating the Q-value (change in kinetic energy) for the $D^0 \to \chi_s^-e^+\nu_e$ decay process? Steps The change in kinetic energy is ...
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0answers
16 views

What photomultiplier failure causes a zero signal?

I have a photomultiplier detector that suddenly stopped working. Usually I would have expected damage to occur over time by overexcitation, leaving a distorted signal. Now I'm unsure whether the PMT ...
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0answers
29 views

Estimating “attributes” of a single photoelectric interaction

Disclaimer: I'm a mathematics grad student working on medical imaging. My knowledge of physics and physical intuition is, for the most part, quite poor. Question: I've been reading a lot about the ...
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0answers
26 views

How to see alpha radiation

Hello I am looking to replicate the double-slit experiment using alpha radiation from a sample of Polonium-210. Keep in mind that I would need to put it in a vacuum so cloud chambers would not work. I ...
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0answers
14 views

What is the meaning of the minimum separation requirement?

In this work, BHsearch done by CMS, they reconstructed and identified objects using certain conditions. And finally, in Page 3, the last paragraph requires that the minimum separation between any two ...
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27 views

How to intergate the cross section over the surface of a detector?

My beam moves along the $X$ axis. I know the cross section $\frac{d \sigma}{d \Omega}$. My rectangular detector is perpendicular to the $XY$ plane and its surface is perpendicular to the line ...
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51 views

landau distribution as a model of charge deposition in silicon detector

I am would like to know if it is any explanation why the charge collected by the detector can is model by the Landau distribution. Is it any deeper explanation instead of "it is working" ? I look ...
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51 views

Quantum Hall Effect Dark Matter Detector?

Has anyone used a Quantum Hall effect detector to detect dark matter? I was looking at the following animation on wikipedia: http://en.wikipedia.org/wiki/Quantum_Hall_effect#...
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62 views

Compare Dynamics of Cosmic Ray Neutron Radiation

Examining cosmic ray neutron radiation near ground by neutron monitors for example (http://www.nmdb.eu), different stations show similar dynamics in the signal. At one station, I like to "substract" ...