问题描述：
英语翻译
Operating Ranges and Response Times
The following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 uses autoranging,automatically changing to the X1000 scale.Whenever X1000 is shown above
the numeric display,multiply the displayed reading by 1000 to determine the radiation level.
Maximum level.When the maximum level for the current mode is reached,the
Digilert 100 beeps for three seconds,pauses for three seconds,and repeats
that pattern.The numeric display flashes.The beeping pattern and the flashing continue until the level decreases or the Digilert 100 is turned off.
Display update and response time.In Total mode,the numeric display is
updated each second.In the dose rate modes,the numeric display is updated every three seconds.When the radiation level is less than 1,000 CPM,the reading in any of the dose rate modes is based on the radiation detected in the immediately previous minute.In order to give a quicker response to changes,when the radiation level exceeds 1,000 CPM,the reading is based on the previous 3 seconds,as shown in the following table.This automatic change in response time is called auto averaging.
Radiation level Basis for reading
1000 CPM or 1 mR/hr 3 seconds
Note:You can set the response time to 3 seconds at all radiation levels using the Utility Menu; see "The Utility Menu" in this chapter.
Taking a Timed Total Count
The Digilert 100 can give you a total count for a timed period of from one minute
to 24 hours.
A timed total count is useful for determining the average counts per minute over a period of time.The number of counts detected by the Digilert 100 varies from minute to minute due to the random nature of radioactivity.When a count is taken over a longer period,the average count per minute is more accurate,and any small increase is more significant.
Taking an average allows you to detect low-level contamination or differences in background radiation due to altitude or soil mineral content,and can be useful
for educational purposes.For example,if one 10 minute average is one count higher than another 10 minute average,the increase may be due to normal variation.But over 12 hours,a one count increase over the 12 hour background average is statistically significant.
Operating Ranges and Response Times
The following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 uses autoranging,automatically changing to the X1000 scale.Whenever X1000 is shown above
the numeric display,multiply the displayed reading by 1000 to determine the radiation level.
Maximum level.When the maximum level for the current mode is reached,the
Digilert 100 beeps for three seconds,pauses for three seconds,and repeats
that pattern.The numeric display flashes.The beeping pattern and the flashing continue until the level decreases or the Digilert 100 is turned off.
Display update and response time.In Total mode,the numeric display is
updated each second.In the dose rate modes,the numeric display is updated every three seconds.When the radiation level is less than 1,000 CPM,the reading in any of the dose rate modes is based on the radiation detected in the immediately previous minute.In order to give a quicker response to changes,when the radiation level exceeds 1,000 CPM,the reading is based on the previous 3 seconds,as shown in the following table.This automatic change in response time is called auto averaging.
Radiation level Basis for reading
1000 CPM or 1 mR/hr 3 seconds
Note:You can set the response time to 3 seconds at all radiation levels using the Utility Menu; see "The Utility Menu" in this chapter.
Taking a Timed Total Count
The Digilert 100 can give you a total count for a timed period of from one minute
to 24 hours.
A timed total count is useful for determining the average counts per minute over a period of time.The number of counts detected by the Digilert 100 varies from minute to minute due to the random nature of radioactivity.When a count is taken over a longer period,the average count per minute is more accurate,and any small increase is more significant.
Taking an average allows you to detect low-level contamination or differences in background radiation due to altitude or soil mineral content,and can be useful
for educational purposes.For example,if one 10 minute average is one count higher than another 10 minute average,the increase may be due to normal variation.But over 12 hours,a one count increase over the 12 hour background average is statistically significant.
问题解答：
我来补答展开全文阅读