I Have a Research Support System

At 7:30 on Saturday night, Xu Qiu, Han Jiaying and Chen Wanqing gathered at Caiyi 216 on time.

Xu Qiu paid special attention to the school girl, and found that she had returned to her usual lively and bouncing appearance.

She's probably fine.

But the senior sister is right next to her, so it's not good to ask directly. Let's consider the next light source experiment.

So, Xu Qiu entered the glove box, put the samples prepared earlier, gloves, tweezers and other necessary tools into a garbage bag and took them away.

Afterwards, the three stopped by the supermarket to buy supplies, and then took a taxi from the school gate to go to the light source test.

In the end, we arrived at the Modu Light Source ten minutes earlier.

The three registered at the gate guard, entered the test building, and found the BL14B1 line station.

There is only one teacher on duty in the office. It seems that the previous group of users should have ended the experiment early.

Xu Qiu exchanged a few words with the teacher on duty, and learned that the other party's name was Xu Yungui, and he was from his family.

Han Jiaying went to the testing room to put a good sample of hers, and Teacher Xu Yungui began to cut light and debug.

At this time, Xu Qiu discovered something unusual.

On a nearby computer screen, the beam energy column shows 18keV.

Xu Qiu pointed to the value and asked the teacher on duty: "Hello, teacher, I see here that we used X-rays with an energy of 18 kiloelectron volts for this test, and our previous two tests were 10 kiloelectron volts. volt."

"Oh, the energy of the light source was adjusted about a week ago, because it is troublesome to switch the X-ray energy every time, so the machines of the same energy are arranged together." Xu Yungui explained:

"As for most samples, they are not sensitive to X-ray energy, and can be measured at 10 or 18 keV. Have you ever measured 18keV before?"

Xu Qiu hadn't participated in the previous test, so he looked at the senior sister and gave him a questioning look.

Chen Wanqing understood, and then said: "I have the impression that it used to be 10keV before, and I see that most of the literature uses 10keV."

Xu Yungui thought for a while and said: "Well, let's try to test it first, if the test result is really bad, just tell me, and this test opportunity will be cancelled.

I can help you to apply for a new machine schedule. Of course, you can also send an email to the contact person at the user office to ask him to only arrange 10keV light for you in the future. "

"Okay, thank you teacher." Xu Qiu said.

"It's okay, let's continue debugging." Xu Yungui said.

...

After more than an hour, the debugging was completed.

Chen Wanqing started the test. Sample No. 1 was Han Jiaying's P3T system, and the exposure time was first set to 10 seconds.

Thirteen seconds later, the exposure and imaging ended, and the signal of the sample could be vaguely seen.

Later, the senior sister increased the exposure time to 100 seconds.

In the new image obtained, the sample signal is more obvious.

Xu Yungui leaned over, carefully observed the images on the computer, and said:

"The signal looks okay. The signal peaks inside and outside the plane have come out. You can continue to measure according to the current situation."

Then, he asked again: "I can do basic operations such as searching and switching lights."

Xu Qiu nodded and said, "It will."

"Then I'll leave a contact information for you, and if you have anything to do, call me directly."

Keep testing.

The data obtained from samples No. 2 to No. 4 seem to have no problem.

It seems that the increase in X-ray energy has no effect on the experimental results.

When the fifth sample could be measured, Chen Wanqing suddenly discovered that there were many high-intensity impurity spots in the sample signal.

Moreover, according to the previous treatment method, I tried to rotate the sample angle, but found that no matter how I rotated, these impurity spots could not be completely removed.

Since Han Jiaying's division of labor is to replace the samples, the back and forth rotation angles made her very uncomfortable.

Regarding this point, Xu Qiu guessed that the high-energy X-ray test has higher requirements on the sample, and the film must meet the conditions such as being very flat.

But now that the sample has been prepared, further optimization can only be done later. For example, the No. 5 sample in front of us can only be discarded.

During the follow-up test, similar situations occurred several times.

With the first experience, Xu Qiu just gave up when he couldn't test the sample smoothly after changing the angle three times in a row.

Fortunately, three backup samples have been prepared for each system, and there is no problem of missing data in a certain system.

In addition, Xu Qiu made another discovery:

Tested at 18keV, the strength of the signal will be stronger than that of 10keV, which means that it is difficult to directly compare the data between the two.

Fortunately, he came prepared this time. Samples were prepared for all four systems. Otherwise, the old PCE11 data of the previous test could not be used, and a supplementary test would be required later.

...

It was past two o'clock in the morning.

The broadcast of the light source suddenly sounded:

"Urgent notice. Due to the instability of the light beam, the light supply is now stopped. Please shut down the light path at each line station. The time for the beam recovery will be notified separately. Urgent notice..."

The notification was repeated three times in total.

Xu Qiu and Han Jiaying were changing samples in the test cabin, and they were all taken aback when they heard the sound.

"Ah, this..." Han Jiaying smiled awkwardly, "Our luck is too bad."

"Hey, I can't help it. This is the first time I have encountered this situation," Xu Qiu spread his hands and said, "Just follow the normal procedure and turn off the master control switch."

After turning off the master control switch, the two returned to the office.

Chen Wanqing also said with a depressed face: "There are still more than ten samples left, and the test is almost finished, and I don't know how long it will take. By the way, should we notify the teacher on duty?"

Xu Qiu thought for a while and said, "Don't bother me, I've followed the instructions just now, so it should be fine."

"Okay," Chen Wanqing nodded, took out biscuits and yogurt from her school bag and distributed them to the other two, saying:

"Just take advantage of this time to replenish energy."

At this time, the landline "Ring Ring" rang.

The three looked at each other, and finally the senior sister and the junior sister seemed to have reached an agreement, and looked at Xu Qiu at the same time.

Xu Qiu reluctantly picked up the phone.

"Hey, I heard the broadcast said that everything is off, you guys know how to operate it." Xu Yungui's voice was in the receiver.

"I know, I have turned off the master control switch as required." Xu Qiu said.

"That's good, just wait a little longer, it usually won't last long when it's all lost." Xu Yungui comforted.

"Okay, okay." Xu Qiu said.

Afterwards, the other party hung up the phone first, Xu Qiu took the flavored lactic acid bacteria handed over by the senior sister, unscrewed the lid, drank tons and tons, and ate a few biscuits to fill his stomach.

Chen Wanqing was not very sleepy, she took out her mobile phone and began to follow the drama.

Han Jiaying seemed a little confused. She yawned, narrowed her eyes, folded her arms, and curled up in the chair.

Xu Qiu was also a little sleepy. He lay down on the chair, closed his eyes, and began to rest his mind.

The senior sister looked at the two people next to her, and silently plugged in her earphones.