In the process of firing ceramics, the original energy will be released due to high temperature, just like after the clock is set back to zero, the ceramic begins to accumulate information again, and the final measured information is proportional to the firing age of the ceramic, which is the basic principle of thermoluminescence generation.

Thermoluminescence dating is mainly by heating a ceramic sample to test the intensity of light it emitted, so as to determine the firing year of the ceramic.

In the thermoluminescence test, older ceramics have stronger light intensity. Compared with more recent ceramics, such as Ming and Qing dynasty porcelain, the light intensity will be weaker, and the difficulty of testing will be correspondingly higher.

In the 80s of the last century, a Hong Kong antique dealer bought a batch of high-quality imitations of Tang Sancai in Henan and shipped them back to Hong Kong to sell them as cultural relics.

Some customers took the porcelain they bought to do the thermoluminescence age test, and they successfully passed the test and were determined to be genuine in the Tang Dynasty.

The antique dealer was overjoyed and immediately took a few more things for testing, but they were again classified as modern fakes.

What's going on here? The antique dealer was puzzled, compared and pondered repeatedly, and finally found the strangeness.

It turned out that he bought a lot of Tang Sancai at that time, except for a few pieces that he carried with him and returned to Hong Kong by plane, the rest were consigned back by land. Now, all the people who can get through the customs are brought back by themselves, and the ones that are consigned back are all flawed.

The antique dealer thought hard about it, and finally thought of the security check at the airport. At that time, X-ray inspection was still used for security inspection, could it be that X-ray was at fault? So he took a few pieces of fake porcelain, ran to the airport to go through the security equipment, and then sent them for thermoluminescence age testing, and sure enough, they were all identified as old antiques.

In fact, thermoluminescence is still a very scientific method, at present, in the international judicial appraisal, thermoluminescence can be used as a hall of evidence, so that is to say, there are some counterfeiters who know how to deal with this, so it does not mean that all counterfeiters can decipher?

Therefore, there is such a thing in the Shanghai Museum, a test of a Tang Sancai results for more than 3,000 years, more than 3,000 years to the Shang and Zhou periods, so it is impossible to have Tang Sancai.

The age is not right, the counterfeiter, he used that radioactive agent at that time to overdose, so he made old, and it is not so easy to grasp this technology.

Moreover, some museums in China also report on this, saying that they can find through their tests, and they can distinguish between artificial radiation and natural radiation.

That is to say, although some people have already cracked this thermoluminescence method, they can now crack the fake thermal light test method to deal with this method. Thermoluminescence has its drawbacks, for example, it also has to take a sample, and it has to cause damage to the item.

This is the first point, then the second point is that it can't measure the recent age, you can't do it like the Ming and Qing dynasties.

There is also porcelain, so the pottery before the Yuan Dynasty was done very accurately, which is also its limited surname, it has its limited surname.

In addition, thermoluminescence may also make the real thing fake, if the best case of this unearthed thing is that it is dug out of the soil, and then you take black paper and send it to the laboratory, which is the most accurate.

If you want to stay in the sun for a few days, it will attenuate, because the temperature of thermoluminescence is 300 degrees, especially in summer, the sunlight has reached 1 or 200 degrees, and it will also attenuate, so it is possible to make the real one fake, and this possibility is also surnamed.

Tao Dayou has his father Tao Lin is an antique expert, although their brothers do not learn and do not know, but they still know a lot about various counterfeiting techniques, and Jin San can make such a batch of eggshell pottery, if they completely deceive the detection of scientific instruments, then they are really rich.

There were eight eggshell pottery bowls on the table, and soon, Tao Dayou was not afraid of trouble, and all the eggshell pottery bowls were tested with instruments, and the whole family was not 4,600 years old.

"How is that possible? It can't be fake, right? You're not going to fool me with the real thing, are you? How is such a technology possible? "It's not easy to make a fake with such an accurate year with rays, and it's even more difficult to do it now that eight eggshell bowls are of the same age.

"Nothing is impossible, but it's not easy to make such a thing, I'm just making part of it."

Jin San came from the side of a cardboard box, which contained a lot of eggshell pottery goblets and some pottery pots, and the clay pots in it were the least, only ten.

"All of this is 4,600 years?" Li Lindao.

Jin San said: "It's all 4,600 years. ”

"That's all?" Tao has a way.

"That's all, the others are only three or five hundred years old."

"It's not new, is it?"

"It looks exactly the same as these, except that if you test it, the results can only be three to five hundred years."

Tao Dayou said: "How to calculate the price?" ”

"No matter how many years, all of them are at the same price, 300,000 yuan per piece, sold as a set, eight bowls, eight wine glasses, and a clay pot, these are considered a set, at least one set."

"Seventeen, each costs 300,000, that's 5.1 million, which is too expensive." Tao Xiaoyou shouted.

Jin San didn't look at him, he looked at Tao Dayou and said: "My Jin San's ** name is now famous all over the world, give you this price, maybe it can make me more famous, now I don't even want my reputation, are you still too expensive?" ”

Tao Dayou thought that on the phone, their brother said how much money the Boundless Daqi earned last time, and now it must be difficult to lower the price, and his face suddenly became ugly.

Jin San was in a good mood at this time, the batch of eggshell pottery in his hand, even if it was real, would only be sold at 300,000 yuan in China, but if it was smuggled out, it would not be at this price abroad.

"There is no such good thing in foreign countries, if you have the goods in your hands, I believe that the major museums abroad will want it, and those years of 4,600 years, can be used as a stepping stone, such goods you ship out, it will definitely sell very well, anyway, there are not a few people idle eggs to do identification, as long as the first batch is handled, you should not encounter much trouble."

"100,000, if it's this price, we can consider asking for a few more sets."

"It's not negotiable, 300,000 is not two prices, at least one set, no matter how much it is, it's this price."

"So we don't have to talk." Tao has a way.

Jin San sneered: "I also see that your strength is not bad, so I will show you the goods, if you don't accept it, then I'm sorry, maybe in your opinion, these goods are valuable, but in my Jin San's hands, they are garbage, to make these things, I just spend a little effort, if you have other ideas, I think it's still provincial, if you don't want to, you go out, I will destroy this batch of goods, and I won't leave a handle." ”

Li Lin, who was originally looking at Jin San with the eyes of a cat and a mouse, listened to Jin San's words, the smile on his face suddenly disappeared, he really had a plan to eat black, if he could swallow Jin San's goods, they would get rich, and Jin San could only suffer a dumb loss, he didn't dare to do anything to him.

Tao Dayou glanced at Li Lin, this Li Lin has a strong background, and their brothers are doing this business because of his existence, so now he wants to see Li Lin's decision.

Li Lin said: "The price is too high, we have no profit, and it is not so easy to sell the goods." ”

"The price is not negotiable, I don't want to be a fool, 300,000 is not the price, but I can guarantee that it will only be supplied to you, if we cooperate happily, there will be other goods in the future."

Li Lin doesn't know much about the antique market, and it depends on the Tao brothers in this regard, seeing Tao Da's undetectable nod, Li Lin said: "Well, if you can guarantee that only supply to us, then our risk of mistakes will be reduced, and I hope we can continue to cooperate." ”

At this time, Li Lin has no arrogance at all, and all that remains is wisdom, it seems that this Li Lin is not simple, but simple people can't do it if they are in the smuggling business.

Jin San said: "I don't want such goods to appear in the domestic market. ”

At this time, Li Lin no longer spoke, but handed it all over to Tao Dayou, Tao Dayou said: "No problem, it can't be sold at a high price in China, 300,000 is already the highest price, so we have no market in China, this should be a reason why Jin Da is at such a high price, right?" ”

Jin San said: "It's good that you know, I don't want to cause trouble in China, and I don't think you want to do these things in China, right?" ”

"Of course, rabbits don't eat the grass next to the nest, but we really sell such goods in large quantities, and the relevant domestic departments will definitely not let us go, which is not a trivial matter."

"I don't care about that, that's your business, you can't take any risks and just want to take benefits, right?"

"If the quantity we need is large, I hope that the head of Kim Dae can agree to us on a condition."

"If the quantity is large, the rest can be discussed." Jin San couldn't figure out what the conditions were, so he could only deal with them.

"I will never make the Jin Da family embarrassed, the brothers are serious businessmen, since the sale of the boundless Daqi provided by the big boss, the brothers have a new idea, so they need the support of the Jin Da family."

"Tell me about it."

"With the support of Li Gongzi, our brother registered a brother high-imitation art company, specializing in high-end foreign customers to do high-quality imitation, and hope that Jinda will provide technical support."

"No problem, I don't know how many goods you want this time, if it's too little, it will be a big loss for us to do after-sales service."