E-tivity 2.1

No problem Mr Placide, we will be addressing them sequentially and you are free to bring up anyone as they come to mind in the course of the discussion

Some of those difficulties is low connection,

Class still going on or finished ?

DR is way of recording latent image electronically.. It way of eliminating way of traditional, where darkroom is needed.. In DR it uses digitizer for processing..

Similarly, another advantage of D.R is that it can reduce insidence of film loss,lower radiation dose, post processing opportunities

I think it reduces the radiation doses because we use low factors

Good question Mr. Blaise. It is both: The image receptor is very sensitive to radiation and so can respond to minimal exposures that is optimal enough to produce the image, and where postprocecessing is possible with suboptimal exposures there wont be need for a repeat. So repeat is reduced and low exposure factors adopted. However as stated, because of its wide exposure latitude radiographers would possibly over expose at the expense of the patient still with optimal image which often blinds them to the reality.

For me i think it reduces doses to patient, technologist and also public because you use low exposure factors and after you adjust contrast to produce diagnostic images

in indirect, you expose the plate and take them for reading as discussed below while in the direct, it is just as you use the camera of your phone, you snap and you see the image immediately. This type of machine is in the private clinic along Rwamagana road, will tell u the name if i remember

This can be used with any x-ray machine. the same machine used with darkroom can continue with this if we remove darkroom or leave it for a back up. the is called computed Radiography.

This term is different from computed tomography

@ Placide you are perfectly right.

Thank you

For me u are right

@Nadine thats good question
In indirect we use cassette this cassette holds the photostimulabe plate which when exposed gets excited just like a fluorescent material. This change in energy levels and trapped electrons irrespective of the lossess contains the latent image.

When we take it to digitizer, the digitizer usese a laser beam to scan it and the scanning leads to liberation of blue lighs which is dependent on the intensity of radiation absorbed and the intensity of the laser beam

This light is picked and amplified by the PMTs (photomutiplier tubes) and converts it into an electrical signal which is processed via an algorithm and the DAC (digital to analogue converter ) converts this into a visible image

I think in indirect the image receptors are designed in the way that they immediately process information they got like the way brain process

Does there on indirect latent image produced? Films are pucked in printer as cassette inserted in digitizer it read it then systematically digitizer open cassette remove that plate read it image seen on monitor then u print image comes out on film

on my side i think today was a test to see how things are done maybe tomorrow we will come back in a good shape

Please do we continue or leave it till tommorrow as you go to read the materials