Suddenly remembering something, Xu Yi jumped up excitedly, lay under the bed and looked for a long time, and pulled out a broken cardboard box.

If it is ionizing radiation, I can't quantify it, but I can still qualitatively, after rummaging in the carton for a long time, Xu Yi turned out a small box from the box that I don't know how many years, the box was full of dust, and the color was no longer visible, a small box more than an inch high, and then found a disposable syringe that was not torn off the package, and turned out a tan flat plastic bottle inside, seeing that everything was there, Xu Yi breathed a sigh of relief, there was originally an old-fashioned broken camera, but today I don't need this thing, there is no need to look for it。

Open the box, neatly stacked with a piece of sky blue plastic sheets, this is the film of the bright chamber tooth piece, this blue is the outside of the plastic bag, the inner layer of the plastic bag is black, can avoid being irradiated by strong light, through the bag to make the film exposed, when using, as long as you directly take this on the inside of the tooth to be photographed in the gum, after direct exposure with the dental tablet machine outside, you can take another syringe, take a few milliliters of the brown bottle in the development and fixing two-in-one function of the rinse set of medicine, puncture the bag with a needle to inject the medicine in, and then pinch the outside of the bag for two minutes, so that the latent image left at the time of exposure and rinse off the unexposed potion on the film, to avoid the second exposure after opening the bag, so that the film is invalid, so that the bag is torn open, rinsed with running water to remove the residual harmful to the human body, and then dry the film, and a tooth piece is photographed.

Of course, Xu Yi didn't bring this for this purpose, he just wanted to use this to check whether there was ionizing radiation in the diamond-shaped vertebrae in his brain and the space inside.

Speaking of this thing, we have to start with the years when the Chinese hospital was in decline.

At the beginning of the Chinese medicine hospital is relatively poor, the whole hospital does not have a computer, let alone a digital projector, an old-fashioned slide projector or the kind of manual push and pull slides, but after a few uses, the hospital found one thing, this slide projector is very easy to use, but the slides used here are quite expensive to buy, and the amount of medical slides at that time is not much, so brainstorming, and finally adopted the advice of a technician in the radiology department, use a film camera, and then install a special bracket inside, and then put the dental film in the darkroom, and then adjust the exposure conditions, press the shutter to expose, and then develop the film under the darkroom, get the negative directly, then jam it in the slide projector, develop it on the screen, and then use a piece of film to make a second exposure, reverse the image, so that you can get a normal and usable slideshow.

After the hospital tried it out in several departments, it felt feasible, so each department was equipped with a camera, dental film and a development kit, and it was used for many years.

Xu Yi These things were all turned out of the desk assigned to him when he first came to Corey that year, asked the director, the director talked about the origin of this thing, and then said that this thing has been eliminated, and the hospital now uses digital cameras to shoot, and then uses digital slide projectors, he wants to take it to play, if you don't want it, just throw it in the trash, just throw it in the trash, just like that, Xu Yi moved these back, but after shooting a few times to play, I found that this is not a special film for the camera after all, and the substrate of the film is blue, which is much thicker than the film, and the particles of this silver powder are also relatively coarse, and the graininess is very strict, so the imaging is rougherAfter that, I threw it under the bed for many years, and if I didn't think about it today, I was afraid that I would have to wait for when I moved to remember this thing.

Although accurate measurement of the radiation dose requires the use of a Geiger counter, but at least if this film can help him know if this thing has any big radiation, if this thing has ionizing radiation in his brain, Xu Yi decided to find a place where no one is to wait for death slowly, and save this ionizing radiation from harming others, if there is no ionizing radiation outside, and there is ionizing radiation inside this thing, then Xu Yi will not hesitate to never enter it again in this life!

However, these tooth tablets and developing fixer have not been used for so many years, and I don't know if they have failed, so Xu Yi directly turned on the table lamp, tore open a tooth piece under the table lamp to expose it, and then took a syringe and drew a set of medicine drops on it, and then shook the tooth tablets, and the place where the set of medicine drops immediately changed from gray-blue to dark color, seeing this, Xu Yi was relieved, this thing is fine.

After that, Xu Yi went to the water room to fetch a basin of clean water and put it on the ground, keeping it for cleaning the film.

After all, those who have been in junior high school know that silver halide is very easy to decompose, even sunlight will make them decompose, silver iodide and silver bromide are more obvious, but silver bromide is generally used on the film, as long as the frequency is not less than the red frequency of the light can make the film photosensitive, including X-rays, α rays, β rays, γ rays and even neutron rays-induced secondary rays can decompose it into bromine and silver.

Silver bromide is insoluble in water, but can be dissolved in sodium thiosulfate solution, bromine is slightly soluble in water, but it is easily soluble in carbon disulfide, organic alcohols and organic acids, so it is inevitable that this set of drugs should contain zài similar to acetic acid and baking soda, similar to methanol, hydroquinone and other things, in addition to smelling sour, there is also a pungent smell, but at this time, it is not the time to take care of these.

Xu Yi thought for a while, the skull bones in the bilateral temples, which are the so-called "wing points" in Western medicine, are the weakest, and there are also unclosed bone sutures, if there is really ionizing radiation, then no matter how weak the ionizing radiation is, it will definitely be detected here.

If you save ionizing radiation, but you can't detect it, it only affects yourself, not others, at most, you hang up yourself, it's better than you can't get better, and you have to hurt others.

Turning off the light, Xu Yi found that the room was still not dark enough, so it was inevitable to be affected by the light, so Xu Yi simply turned on the light again, turned out a clean plastic bag from the drawer, pinched the mouth of the bag, and tried not to leak, so he pinched two pieces of tooth tablets, and then used a syringe to extract some rinsing kits, pulled out the needle on the syringe, and then put it into the plastic bag.

Pinching the mouth of the bag, Xu Yi got into the quilt, after all, there was no red light, so he could only work in the dark.

Although the phone can barely be used if you make a red picture and keep the screen bright after that, but considering that the buttons under the screen are all white light, plus there may be light leakage, Xu Yi still gave up the idea of making a simple red light by himself, and directly touched the black.

After all, when I used to get that broken camera to shoot negatives, I also made it like this, and this is simpler without opening the back cover of the camera.

Xu Yi put the pillow on the pillow, took another piece of tooth and aimed it at the position, pressed it directly between the head and the pillow, and then rested his head on the pillow without moving, and with both hands tore the other plastic sealed bag directly, and directly pasted the tooth piece inside on his temple.

After all, whether it is a camera, a radiological film or even a CT examination, the time required for each exposure is calculated in milliseconds, for the sake of safety, Xu Yi even directly pasted them for almost five minutes before taking them down, so that he opened a slit in the mouth of the plastic bag and stuffed the torn tooth piece into it, then he stretched his head out of the quilt and took two breaths, pushed the syringe that was still in the quilt for a while, put some rinsing medicine into the plastic bag, and then soaked the film in the potion, and gently kneaded it a few times outside the bag in order to distribute the medicine evenlyAfter about three or five minutes, I took the bag out and threw it into a basin of water to rinse it.

At this time, the lights could already be turned on, but Xu Yi still waited for the film to be fished up and there was almost no smell before turning on the lights.

There was nothing on the developed film, just a transparent plastic plate with a light blue color, but Xu Yi didn't draw conclusions, and directly developed another one, and found that there was no black anywhere on it, so he relaxed a little and breathed a sigh of relief.

Fortunately, at least, even if there is radiation in this thing, it is extremely small, just wait for the opportunity to find a Geiger counter to measure whether the radioactivity around your body is higher than the natural background, if so, just see where the high place is.

Of course, there are many units that can measure radioactivity, but Xu Yi himself doesn't dare to find it, if he goes, not only will no one test him, but he will also be driven out as a mental illness!

Fortunately, this thing should not be expensive, but I'm afraid it doesn't have to be sold in the county, and everything that involves measurement needs to be forcibly inspected, but if you really buy it, then let the person who sells the instrument test it on its own, so that you don't have to expose yourself, after all, it's nothing to buy this, but if you do a compulsory inspection, you have to issue a test report, and who knows if this thing will provide compulsory inspection services for individuals outside the public.

But anyway, the rest of the time only needs to consider whether this thing is brought in when it enters the body, after all, this thing came out of the cemetery, and it has been in that box for so many years, who knows if there will be any bacteria or viruses, many of the current antibiotics and antiviral drugs can penetrate the blood-brain barrier and enter the ventricular system, and if it doesn't work, it can be administered by lumbar puncture, although this is a last resort, but it is better than no death.

There is no way to prepare anything in advance, you can only take one step at a time, and you can see the inside of the ventricles, and you can monitor the transparency of the cerebrospinal fluid at any time.

And if you think about it, the heat spread all over the body at that time, but at that time, the consciousness was not clear, and it was impossible to figure out whether the red line was distributed along the meridians or along the blood vessels at that time, but no matter what it was, this thing seemed to be distributed throughout his body, and the transparent lines on that thing were not even known to all his blood vessels.