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Post by Sauerkraut on Feb 13, 2015 10:24:52 GMT -6
I picked up this text book for $1.00 at those books the library sells at book sales, many books are donations. Anyhow I started reading the book "Radiologic Science For Technologists" 7th edition by Stewart C. Bushong. I guess some X-Ray Technologist just finished his/her schooling and didn't need the book anymore. I never knew how complex and tuff that career is, there is a ton of math involved. I'm reading the book but don't really know what I'm reading. It's a thick text book.
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Post by Sauerkraut on Feb 13, 2015 10:34:44 GMT -6
Here are some questions in a chapter totally about the X-Ray tube "A radiographic exam of the lateral lumbar spine requires 98kVp & 120 mAs. How many heat units are generated by this exposure? number of heat units=98kVp X 120mAs =11,760HU. "Exposure from a X-Ray tube operated at 70kVp, 200 mAs, is 400Mr. (4mGya), I2, at 90 cm, d2. What will the exposure be at 180cm, d1? >>> Trivia A X-Ray tube will last for about 50,000 exposures if it's cared for and does not overheat.
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Post by Sauerkraut on Feb 13, 2015 10:40:51 GMT -6
"How much heat energy in joules is produced during a single high-frequency mammographic exposure of 25 kVp and 200 mAs? >>25kVp X 200 mAs =5000J = 5KJ. The heat energy they talk about is how hot the anode gets inside the X-Ray tube, The anode inside the x-ray tube spins around and collects the electrons from the cathode, if it gets too hot it can shorten the tube life, burn out the bearings in the spinning anode. Is it any wonder a X-Ray technologist makes so much money? I don't know what I'm reading but I'm reading it.
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Post by heregoes on Feb 13, 2015 10:42:26 GMT -6
If I cared about this subject matter, I would have studied it.
What do you think you are accomplishing by posting the questions from a book you don't understand?
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Post by Maxx on Feb 13, 2015 10:43:59 GMT -6
The fact that you say you have a job and have money then go and buy a book that was meant for the underprivileged and destitute says a lot about you...Your the type of scumbag that would steal a lollipop from a baby and then justify it by saying he wasn't sucking on it...
Stand up and be proud your a REAL man...
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Post by Maxx on Feb 13, 2015 10:45:24 GMT -6
If I cared about this subject matter, I would have studied it. What do you think you are accomplishing by posting the questions from a book you don't understand? He is trying to convince us he is intelligent...He shoots and misses... |
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Post by springschick on Feb 13, 2015 10:56:44 GMT -6
If I cared about this subject matter, I would have studied it. What do you think you are accomplishing by posting the questions from a book you don't understand? What makes me chuckle is that he can spell all of those scientific and mathematical terms correctly, but cannot stop spelling refreshing as refrishing. |
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Post by heregoes on Feb 13, 2015 10:59:50 GMT -6
The fact that you say you have a job and have money then go and buy a book that was meant for the underprivileged and destitute says a lot about you... Library books sales are not for the destitute! Heck I go the them all the time. Its a fund raiser for the library. The folks with money to spend are the ones to go. lol |
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Post by Maxx on Feb 13, 2015 11:05:00 GMT -6
If I cared about this subject matter, I would have studied it. What do you think you are accomplishing by posting the questions from a book you don't understand? What makes me chuckle is that he can spell all of those scientific and mathematical terms correctly, but cannot stop spelling refreshing as refrishing. Because he copied and pasted off the net... ecandqc.wikispaces.com/X-ray+Beam+-+Inverse+Square+LawMy guess is that he is to cheap to spend a dollar on a book... |
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Post by Sauerkraut on Feb 13, 2015 11:34:26 GMT -6
If I cared about this subject matter, I would have studied it. What do you think you are accomplishing by posting the questions from a book you don't understand? Not trying to accomplishing anything, this is the book I'm current reading. It's interesting to see what people who want to run X-Ray equipment must do and study. The book starts off talking about atoms & electrons in the chapter "Radiologic Physics" and discusses famous early inventers. There is a lot to becoming an hospital X-Ray Technologist and they even have to know about the machine they operate. Some stuff is tuff other stuff is understandable. I never knew all the math that is involved in that field. The book is written by Stewart C. Bushong. I just like to read thru a lot of technical books and texts to see what it's about. I wonder how much money those people make? I also wonder what the cost of a X-Ray tube is, must be big bucks there is a lot of discussion in the book about what can damage or shorten the life of a X-Ray tube. The book is filled with graphs, and formulas- if a doctor orders a patient to get a chest X-Ray the Technologist has to know what kVp and mAs setting to use and figure out the correct exposure time for that X-Ray, if there is a series of pictures needed to be taken they have to make sure the anode does not overheat, so they have to set the kVp as low as possible to a good picture, also there is a thing that the cathode has to be aimed at the thickest part of the body or the exposure will not be real clear. The cathode has more electrons hanging around it then the anode and thus more X-rays. Many new machines have safety devices that work to protect the X-ray tube should a setting be too high or incorrect. The book gives ya a whole new respect for the person doing X-Rays down in a hospital radiologic lab. My guess is if you want to become a X-Ray technologist the field is wide open you can find work anyplace and pretty much write your own pay check. No doubt, that is why the cost of a X-Ray is so expensive. |
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Post by Sauerkraut on Feb 13, 2015 11:52:38 GMT -6
I'm still at the start of this book but future chapters talk about the MRI and CAT scans and things like that.
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Post by Maxx on Feb 13, 2015 18:20:09 GMT -6
If I cared about this subject matter, I would have studied it. What do you think you are accomplishing by posting the questions from a book you don't understand? Not trying to accomplishing anything, this is the book I'm current reading. It's interesting to see what people who want to run X-Ray equipment must do and study. The book starts off talking about atoms & electrons in the chapter "Radiologic Physics" and discusses famous early inventers. There is a lot to becoming an hospital X-Ray Technologist and they even have to know about the machine they operate. Some stuff is tuff other stuff is understandable. I never knew all the math that is involved in that field. The book is written by Stewart C. Bushong. I just like to read thru a lot of technical books and texts to see what it's about. I wonder how much money those people make? I also wonder what the cost of a X-Ray tube is, must be big bucks there is a lot of discussion in the book about what can damage or shorten the life of a X-Ray tube. The book is filled with graphs, and formulas- if a doctor orders a patient to get a chest X-Ray the Technologist has to know what kVp and mAs setting to use and figure out the correct exposure time for that X-Ray, if there is a series of pictures needed to be taken they have to make sure the anode does not overheat, so they have to set the kVp as low as possible to a good picture, also there is a thing that the cathode has to be aimed at the thickest part of the body or the exposure will not be real clear. The cathode has more electrons hanging around it then the anode and thus more X-rays. Many new machines have safety devices that work to protect the X-ray tube should a setting be too high or incorrect. The book gives ya a whole new respect for the person doing X-Rays down in a hospital radiologic lab. My guess is if you want to become a X-Ray technologist the field is wide open you can find work anyplace and pretty much write your own pay check. No doubt, that is why the cost of a X-Ray is so expensive. How is it possible that so many words can be typed and yet mean nothing... |
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Post by Maxx on Feb 13, 2015 18:21:04 GMT -6
I'm still at the start of this book but future chapters talk about the MRI and CAT scans and things like that. Please keep us updated we are all on the edge of our seats... |
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Post by heregoes on Feb 13, 2015 18:43:11 GMT -6
I'm still at the start of this book but future chapters talk about the MRI and CAT scans and things like that. Please keep us updated we are all on the edge of our seats...  |
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Post by Sauerkraut on Feb 14, 2015 10:57:00 GMT -6
The book can be interesting except when it gets into technical math issues. It's the book I'm currently reading. It's not as easy read as the books from Michael Savage, but it gets you into the mind set of working as a X-Ray tech. BTW some other useless info but interesting none the less- I learned that dental X-Rays are a bit different than medical x-rays the dental units don't use a rotating anode in the x-ray tube it's stationary, and setting it up is more simple as the dosage is automatic. In the "safety" chapter the book talks about how x-ray the machines sprews out x-rays in all directions, they try and shield the tube, but the x-rays still fly in every direction around the room, even though they only need a small part of the beam aimed at the patient and they warn the x-ray tech not to get too relaxed always go behind the shield during every x-ray exposure. The "X-ray tube" can be made of glass or medal, most new units today use medal, and they are housed in a bath of oil to keep them as cool as possible. When a x-ray tube over heats the cathode sprews off a lot of tungsten that coats the inside of the tube ruining it, that can result in arcing inside the tube and tube failure so using the correct kVp is critical. I wonder what the students do in class or how the lectures go - anyhow it's a tuff career choice. I wonder how many years of schooling a x-ray tech has to go thru? It is tuff. I don't think I could hack it. I only have one text book no doubt the students require other text books and perhaps a few work books and a math refresher course too..  |
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