What factor limits increasing the detection efficiency of a proton recoil telescope by simply increasing the thickness of the hydrogenous radiator?
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efficiency of a proton recoil telescope by
simply increasing the thickness of the
hydrogenous radiator?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41a71aa8-201c-4a87-9a82-7aaf8bb30f20%2F8678d8cf-2a0d-4450-abe6-955315bd9bfa%2F1kpuhj_processed.jpeg&w=3840&q=75)
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- Comparison the application of temperature sensor FBG in Photonics or modern optics ? details explanations please.Neutral hydrogens are detected with their emission lines of 21cm. What is the energy of a photon in such a line, and in which waveband would this line be observed?The infrared spectrum of 75Br19F consists of an intense line at 380. cm-1. Calculate its force constant, k, in units of N/m. (You can use the example as a sanity check.)
- find the temperature of the coolest star whose peak blackbody wavelength can be observed with the human eye (the exact range of visible light varies from publication to publication, so use 380nm to 750 nm).Consider a laser pen. Construct a problem in which youcalculate the number of photons per second emitted by thepen. Among the things to be considered are the laser pen’swavelength and power output. Your instructor may also wishfor you to determine the minimum diffraction spreading in thebeam and the number of photons per square centimeter thepen can project at some large distance. In this latter case,you will also need to consider the output size of the laserbeam, the distance to the object being illuminated, and anyabsorption or scattering along the way.A stars wavelength is observed to be 200 nm. Calculate the approximate surface temperature of the star
- 1.2) In a region of gas where the optical depth is 2.0, what percentage of photons can escape without being scattered or absorbed?Your trusty 1 milliwatt He-Ne laser beam has a wavelength 1 = 632.8 nm |(the correct wavelength). Perform the following calculations, or answer the following questions about your prized possession: 1) calculate the energy, E, of the He-Ne laser beam in electron volts (eV); 2) to your eyes, what color does this laser beam's wavelength correspond to (in air)?; 3) If this laser beam is focused into a 1 carat diamond, with index of refraction n = 2.42, calculate the speed of the He-Ne laser beam, as you check the quality of your purchase at Zale's Diamonds, with your best girl.Is this a blackbody radiation graph