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What is spectrometer what is least count of spectrometer how it is how you can take mesurment of spectrometer?
spectometer is an instrument wnich measures the light passes through a prism
What is difference between spectrophotometer and spectometer?
In short, a spectrometer utilises a wide range of wavelengths from the electromagnetic spectrum whereas a spectrophotometer utilises only a small section of the electromagnetic spectrum (usually only near-visible light....we usually use U.V). Apart from that, the two are actually extremely similar.
The box like device attached under the tube housing that allows the limited operator to vary the size of the radiation field is called a?
collimator
Is a sword a wedge?
No it is not but you can use it as a wedge but it is not appropriate use of a sword.
Nuclear medicine flood field uniformity test how often is it done?
Daily, or every day that the camera is being used for studies on patients."Seven different quality control procedures are necessary for a general nuclear medicine camera: energy peaking, uniformity, efficiency, resolution, linearity, high calibration flood, and collimator integrity.Energy peaking. Daily, the technologist checks the peak of a known radioactive source by the camera's energy spectrum. The energy peak of the camera should correlate with the peak counts of the radionuclide source.Uniformity. Uniformity is a daily assessment to measure the camera's ability to produce uniform images of a uniform source or accurate images. A uniformity flood source of Tc-99m or Co-57 is placed on the detector of the camera and an image is taken. To ensure acceptable uniformity, quantitative analysis is performed. Quantitatively, the uniformity should be below 5% and preferably in the range of 3% with today's camera abilities.Efficiency. This analysis can be performed in combination with uniformity. Efficiency assesses the ability of the instrument to detect any radioactive disintegration emitted. When analyzing the efficiency in combination with the uniformity, the time can be noted and compared with previous uniformity floods. When analyzing the efficiency separately, a known amount of activity is counted and the activity converted to disintegrations per minute. The efficiency is calculated by dividing the counts per minute imaged by the calculated disintegrations per minute and multiplying by 100. Efficiency = (cpm/dpm) x 100.Resolution. Resolution is performed weekly and assesses the camera's ability to produce image detail and sharpness. This test is performed similar to the uniformity test; however, a resolution bar phantom is placed between the camera detector head and uniformity source to produce the resolution image. The images are assessed qualitatively to evaluate the resolution acceptability.Linearity. Linearity is performed with resolution and assesses the images for horizontal and vertical line straightness or linear lines.High calibration flood. A high-count flood (100 million counts or greater) is used as a calibration source for the system's images. This high-count flood is applied to static, dynamic, and single photon emission computed tomography (SPECT) images to improve image quality and decrease nonuniformities inherent in the system.Collimator integrity. Collimator integrity is performed annually (at minimum) by comparing the extrinsic and intrinsic uniformity floods. The collimator is inspected visually for damage such as dents.
Who invented this mass spectometer?
JJ Thompson
How much is a laser collimator for a telescope?
The cost of a laser collimator depends on the type of telescope you have. One could be looking at spending anywhere between $70 and $200 on a laser collimator.
What is a collimator used for?
A collimator is used to "bore sight" a scope. It will help ensure that the scope is close to being properly aligned.
What device removes long wavelengths?
collimator
What collimator for dental machines are made of?
Tungsten
What happens if the ruled surface of the grating faces the collimator?
Lines will be formed at the opposite side of the observer if the ruled surface of grating faces the collimator due to reflection
What is the purpose of the collimator?
allow only parallel rays from strem of rays
What is spectrometer what is least count of spectrometer how it is how you can take mesurment of spectrometer?
spectometer is an instrument wnich measures the light passes through a prism
What is the need to use telescope in spectrometer?
The collimator present in a spectrometer convert the rays from the source to parallel rays .Telescope is used to watch the parallel rays which means for the telescope the object is located at infinity.so that we use telescope.
What did Roscoe L Koontz Invent?
pin hole gamma ray camera & collimator
What is spectometer in physics?
It is an optical device to study about the spectrum produced by the refraction phenomenon through a triangular prism or obtained by the diffraction phenomenon at the grating.
What is collimating?
the lead diaphragm colloctaded with aluminum filter.the diaphragm or collimator is constructed of 1/16inch lead
