Why is a photomultiplier tube not used as a detector at infrared wavelengths?

Expert Solution

queen_honey_blossom answered 1 year ago

A Photomultiplier tube can detect a single photon, but a photodiode cannot. Why is this? As...

A Photomultiplier tube can detect a single photon, but a photodiode cannot. Why is this? As part of your answer sketch the main components of both devices and describe how they work.

Briefly explain the operational principals and the main characteristics of photomultiplier tubes (PMT) detector.

A photomultiplier tube with a linear response to radiation registered 83.2 μA with a blank solution...

A photomultiplier tube with a linear response to radiation registered 83.2 μA with a blank solution in the light path. Replacing the blank with the solution of interest lead to a response of 45.1 μA. a) Calculate the percent transmission of this solution assuming zero dark current. b) Calculate the percent transmission of this solution assuming 5.1 μA of dark current. c) The absorbance of this solution assuming 5.1 μA of dark current. d) The current from the photomultiplier tube...

1.what is it about organic molecules that causes them to absorb specific wavelengths of infrared radiation?...

1.what is it about organic molecules that causes them to absorb specific wavelengths of infrared radiation? 2. why do infrared spectroscopists report their data in reciprocal centimeters . Hint it has something to do with energy and proportionality

Why can't the Bohr Theory be used to calculate the predicted wavelengths of emitted photons in...

Why can't the Bohr Theory be used to calculate the predicted wavelengths of emitted photons in the line spectra of polyelectronic elements?

What is a “functional group” ? Explain why infrared spectroscopy can often be used to detect...

What is a “functional group” ? Explain why infrared spectroscopy can often be used to detect the presence of a functional group in a molecule

What detector(s) could be used to measure chloroacetaldehyde using GC? How would the detector(s) measure the...

What detector(s) could be used to measure chloroacetaldehyde using GC? How would the detector(s) measure the separated analyte?

Brieflydiscuss: (i) The operational principals and the main characteristics of photomultiplier tubes (PM). Why does a...

Brieflydiscuss: (i) The operational principals and the main characteristics of photomultiplier tubes (PM). Why does a PM tube still have an output signal even in absolutely dark conditions? What is affecting timing of the signal in a PM tube? (ii) The response functions of 'small', 'middle' and 'large' gamma-ray spectrometers. (iv) Spectroscopy setup and output signals from each part of setup.

Bohr’s Model can be used to find the wavelengths of the photons in the absorption or...

Bohr’s Model can be used to find the wavelengths of the photons in the absorption or emission spectrum of hydrogen atom. Using that model, find the wavelengths of the 5→2, 4→2, 3→2 and 2→1 transitions. Specify the colour associated with these wavelengths when possible. To determine the colours, use tables. If the wavelength is not part of the visible spectrum, specify if it is ultraviolet or infrared.

A Geiger–Muller tube is a type of gas‑filled radiation detector. It can detect particles like X‑rays,...

A Geiger–Muller tube is a type of gas‑filled radiation detector. It can detect particles like X‑rays, alpha particles, and beta rays (electrons). This is useful in quantizing the activity of a radioactive source or determining if an area containing radioactive material is safe to enter. Assuming that you have 1mol of gas, if a Geiger counter is filled with 9674 Pa of argon gas at room temperature (T=23.3 °C), what is the density, ρ, of the gas in this Geiger...

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