JPS6011148A - X-ray diffraction apparatus - Google Patents

X-ray diffraction apparatus

Info

Publication number
JPS6011148A
JPS6011148A JP11990383A JP11990383A JPS6011148A JP S6011148 A JPS6011148 A JP S6011148A JP 11990383 A JP11990383 A JP 11990383A JP 11990383 A JP11990383 A JP 11990383A JP S6011148 A JPS6011148 A JP S6011148A
Authority
JP
Japan
Prior art keywords
ray
time
measurement
diffracted
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11990383A
Other languages
Japanese (ja)
Inventor
Seiji Hashimoto
誠司 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Shimazu Seisakusho KK
Original Assignee
Shimadzu Corp
Shimazu Seisakusho KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp, Shimazu Seisakusho KK filed Critical Shimadzu Corp
Priority to JP11990383A priority Critical patent/JPS6011148A/en
Publication of JPS6011148A publication Critical patent/JPS6011148A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/20Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
    • G01N23/207Diffractometry using detectors, e.g. using a probe in a central position and one or more displaceable detectors in circumferential positions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

PURPOSE:To shorten a measuring time by stopping the masuring repetition when the measured value of diffracted X-ray peak exceeds a prescribed value or the measured value at a position where diffracted X-ray is not present exceeds another prescribed value in repeating the measurement due to fixed time method and adding every time measured results. CONSTITUTION:X-ray counted values at the same angular position of an X-ray detector are added at every angular position. If the added result of measured values at a position where a diffracted X-ray peak exists and a point B expected previously exceeds a prescribed level Vp, the measuring repetition is stopped at the measurement of said time. In case the diffracted X-ray peak is not presented at the position expected from the sample, the added result of the measured value at the point B can not attain to the VP. Even in such a case, the measurement is stopped at the time when the added result of measured values at the position A where the diffracted X-ray peak is not present has attained to another prescribed level Vl. Therefore, the meaningless measurement repetition for an infinite time is prevented.

Description

【発明の詳細な説明】 何)産業上の利用分野 本発明はX線回折装置に関する。[Detailed description of the invention] What) Industrial application field The present invention relates to an X-ray diffraction device.

(ロ)従来技術 X線回折の測定法には大別して定時間法と定計数法があ
る。前者はX線検出器の出力パルスを一定時間計数して
その計数値をX線強度とするものであシ、後者はX線検
出器の出力パルスを計数して計数値が成る一定値に達す
るまでの時間でX線強度を表わすものである。
(b) Prior art X-ray diffraction measurement methods can be roughly divided into constant time method and constant counting method. The former counts the output pulses of the X-ray detector for a certain period of time and uses the counted value as the X-ray intensity, while the latter counts the output pulses of the X-ray detector until the counted value reaches a certain value. X-ray intensity is expressed in terms of time until

定時間法によるときは、X線の回折ピークの強度が弱い
ときは、充分な計数が得られず、ピークの識別が困難で
有意な測定データが得られない。
When using the constant time method, if the intensity of the X-ray diffraction peak is weak, sufficient counts cannot be obtained, making it difficult to identify the peak and making it impossible to obtain meaningful measurement data.

従って測定が無駄にならないよう、予め測定時間を長く
設定しておくのが無難であシ、一般的に一回の測定に要
する時間が長くなる。定計数法はX線の強さに応じて自
動的に測定時間が変化するから、不必要に長い測定時間
を設定すると云うような難点はないが、一定計数に達し
たときゴニオメータの角度送シを一ステップ進めると云
う方式であるから、回折X線のない角度範囲に大へん時
間をかけておシ、測定所要時間のうち回折ピークの測定
に費している時間はわずかであり、時間をかけている割
にはS / N比の良い結果が得られない。
Therefore, in order to avoid wasting measurements, it is best to set a long measurement time in advance, which generally increases the time required for one measurement. With the constant counting method, the measurement time automatically changes depending on the intensity of the X-rays, so there is no problem with setting an unnecessarily long measurement time. Since this method takes the process one step further, it takes a lot of time to measure the angular range where there is no diffraction Despite the amount of time spent, results with a good S/N ratio cannot be obtained.

(ハ)目的 本発明は上述した定時間法及び定計数法の利点を採t)
難点を除去したX線回折装置を得ることを目的とする。
(c) Purpose The present invention takes advantage of the above-mentioned constant time method and constant counting method.
The purpose of this invention is to obtain an X-ray diffraction device that eliminates the drawbacks.

(ニ)構 成 本発明は、定時間法による測定を繰返し、毎回の測定結
果を加算して、回折X線のピークの測定値が所定値を超
えるか、回折X線のない位置での測定値が別の所定値を
超えたとき測定の繰返しを停止するようにしたX線回折
装置である。
(D) Structure The present invention repeats measurement by the constant time method, adds up the measurement results each time, and determines whether the measured value of the peak of diffracted X-rays exceeds a predetermined value or the measured value at a position where there are no diffracted X-rays. This is an X-ray diffraction apparatus that stops repeating measurements when the value exceeds another predetermined value.

こ\で定時間法と云うのは、ゴニオメータ上でX線検出
器を一定速度で駆動しながら、一定時間毎のX線検出パ
ルスの計数値(単にX線計数値と云う)を採るか、X線
検出器を一定時間停止させて、次いで一定角度だけX線
検出器を駆動すると云う方式で停止期間中のX線計数値
をX線強度のデータとするもので、本発明は何れでもよ
い。第1図で横軸はX線検出器のゴニオメータ上の角位
置であり、縦軸は定時間法によるX線計数値である。1
は一回目の測定結果であり、2は1回目の測定結果の上
に2回目の測定結果を加算したもの、3はその上に更に
3回目の測定結果を加算したものである。即ち上述した
毎回の測定結果を加算すると云う意味は、X線検出器の
同一角位置におけるX線計数値を各角位置毎に加算する
と云うことである。試料の材質判定等の場合、回折X線
のピークが存在する位置は予め予想されているから、そ
の位置第1図ではB点における測定値の・加算結果が所
定レベルVpを超えたときはその回の測定で以って測定
の繰返しを停止させる。こ\で試料によって予想した位
置に回折X線のピークがない場合、B点の測定値の加算
結果は仲々Vpに到達できない。このような場合でも本
発明では上述したように、回折X線ピークのない位置(
第1図A)における測定値の加算結果が別の所定レベル
Vlに達した場合にも、その回で測定を停止するように
なっているから、無意味に何時までも測定を繰返してい
ると云うようなことは起らず、試料について予想位置に
回折X線ピークがあるか否かの判定がなされる。
The constant time method here means that the X-ray detector is driven at a constant speed on a goniometer and the counts of X-ray detection pulses (simply referred to as X-ray counts) are taken at regular intervals; The method is such that the X-ray detector is stopped for a certain period of time, and then the X-ray detector is driven by a certain angle, and the X-ray count value during the stopping period is used as the data of the X-ray intensity, and the present invention may use either method. . In FIG. 1, the horizontal axis is the angular position on the goniometer of the X-ray detector, and the vertical axis is the X-ray count value by the constant time method. 1
is the first measurement result, 2 is the result of adding the second measurement result to the first measurement result, and 3 is the result of adding the third measurement result thereon. That is, the meaning of adding the above-mentioned measurement results each time is to add the X-ray count values at the same angular position of the X-ray detector for each angular position. In the case of determining the material of a sample, etc., the position where the peak of diffraction X-rays exists is predicted in advance. The repetition of measurements is stopped after the first measurement. In this case, if there is no peak of the diffracted X-rays at the expected position depending on the sample, the result of addition of the measured values at point B cannot easily reach Vp. Even in such a case, in the present invention, as described above, the position where there is no diffraction X-ray peak (
Even if the addition result of the measured values in Figure 1 A) reaches another predetermined level Vl, the measurement is stopped at that time, so it is difficult to repeat the measurement pointlessly. This does not occur, and a determination is made as to whether or not the sample has a diffraction X-ray peak at the expected position.

第1図でカーブnVin回の測定結果を加算したもので
、これはX線検出パルス計数のインターバルをn倍にし
ておけば一回の測定で得られるものであるが、X線強度
が犬でn回よシも小数回の測定で所定レベルVpに到達
できる場合、本発明によればn回の測定よりも短時間で
測定を完了できるが、計数のインターバルをn倍にして
一回の測定で終る従来の方法では、このような場合でも
本発明におけるn回分の測定時間を消費するのである。
The curve in Figure 1 is the result of adding up the measurement results nVin times.This can be obtained in one measurement if the interval of X-ray detection pulse counting is multiplied by n, but if the X-ray intensity is If the predetermined level Vp can be reached in a fractional number of measurements instead of n times, according to the present invention, the measurement can be completed in a shorter time than n measurements. In the conventional method, which ends with , even in such a case, the time required for n measurements of the present invention is consumed.

なおこ\で所定レベルVpはどのように設定するのが合
理的かと云う問題があるが、これについては以下の実施
例説明において述べる。
Note that there is a problem as to how to reasonably set the predetermined level Vp, but this will be discussed in the following description of the embodiment.

(ホ)実施例 第2図は本発明の一実施例を示す。Gはゴニオメータ、
XはX線源、Sは試料でDはX線検出器である。Cは装
置全体を制御する制御回路、Drはゴニオメータ駆動装
置、KはX線検出器の出力パルスを計数するカウンタで
、1Mはカウンタにの計数出力を積算するメモリであり
、Pは測定結果を印字するプリンタである。
(E) Embodiment FIG. 2 shows an embodiment of the present invention. G is goniometer,
X is an X-ray source, S is a sample, and D is an X-ray detector. C is a control circuit that controls the entire device, Dr is a goniometer drive device, K is a counter that counts the output pulses of the X-ray detector, 1M is a memory that integrates the counting output of the counter, and P is a memory that stores the measurement results. It is a printer that prints.

第3図は制御回路Cの制御動作のフローチャー1・であ
る。この実施例ではX線の測定は第1図におけるA、B
2点だけで行う。試料をセットして装置動作をスタート
させると、検出器りをゴニオメータ上でAの位置に移動
させ(イ)、一定時間X線検出パルスの計数を行い(ロ
)、計数値をメモリMのA位置対応アドレスのデータに
加算して同アドレスに格納(ハ)し、カウンタKをリセ
ット(ニ)して、検出器D′f:B位置へ移動させ(ホ
)、上と同様に一定時間計数(へ)、メモIJ MのB
位置対応アドレスのデータに加算(ト)、カウンタリセ
ット(テ)シ、メモリMのB対応アドレスのデータより
がVp以上か判定(す)し、NOのときはメモIJ M
のA対応アドレスのデータIaがV/以上か判定しくヌ
)、Noのときは測定回数カウンタに1を加算四して動
作はaに戻る。
FIG. 3 is a flowchart 1 of the control operation of the control circuit C. In this example, X-ray measurements are performed at A and B in FIG.
Do this with only two points. After setting the sample and starting the device operation, the detector is moved to position A on the goniometer (a), the X-ray detection pulses are counted for a certain period of time (b), and the counted value is stored in memory M at A. Add it to the data at the position corresponding address and store it at the same address (c), reset the counter K (d), move it to the detector D'f:B position (e), and count for a certain period of time as above. (to), Memo IJ M's B
Add to the data at the address corresponding to the position, reset the counter, judge whether the data at the address corresponding to B in memory M is equal to or higher than Vp, and if NO, write the memo IJ M
It is difficult to determine whether the data Ia of the address corresponding to A is equal to or higher than V/ (No), 1 is added to the measurement number counter and the operation returns to step a.

(す)の判定がYESのときハ、試料ナンバー、メモリ
MのB対応アドレスのデータ即ちピーク高さ。
When the determination in (i) is YES, (c) the sample number and the data at the address corresponding to B in memory M, that is, the peak height.

測定回数カウンタのデータをプリンタPで印字させば)
で動作を終了する。(スフの判定がYESのときは、プ
リンタによって試料ナンバー及び試料が予定試料でない
旨(回折ピークなし)の印字を行わせて(ワ)動作を終
了する。
If you print the data of the measurement number counter on printer P)
to end the operation. (If the determination is YES, the printer prints the sample number and a message that the sample is not the expected sample (no diffraction peak), and (W) the operation ends.

上述したVpの決め方の一例を述べる。令弟1図でA点
、B点における1回目までの測定結果の積算値を工a、
よりとする。こ\で一般により〉工aであるが、より〉
工aであることが単にノイズによって偶々そうなってい
るのか、B位置にピークがあって、Ib〉工aになって
いるのかの判断は(Ib−%a)が有意な差であるか否
かを判定すればよく、B位置にピークがあるか否かの判
定においては、この有意差が認められ\ば、その回で測
定を完了してよい。有意差の判定は(I’b−工a)>
305の条件によって行うことができる。即ちVpとし
ては適当に固定したレベルを設定してもよいが、上の条
件によってバックグラウンドのレベルに応じて可変的に
決めるようにしてもよい。
An example of how to determine the above-mentioned Vp will be described. In Figure 1, the integrated value of the measurement results up to the first time at point A and point B is calculated as
It's better. In this case, it is generally more than
The judgment of whether the fact that the value is Ib>A is simply due to noise, or there is a peak at position B, and Ib>A is determined by whether or not (Ib - %a) is a significant difference. In determining whether or not there is a peak at position B, if this significant difference is recognized, the measurement may be completed at that time. Judgment of significant difference is (I'b-Ec a)>
This can be done according to the conditions of 305. That is, Vp may be set at an appropriately fixed level, but it may also be variably determined according to the background level according to the above conditions.

(へ)効 果 本発明は上述したような構成で、各回の測定は定時間法
になっているが、ピークにおける計数が所定レベルに達
した所で測定を終了する点では定計数法に似ており、試
料に応じて測定時間が自動的に決まシ、無駄に時間をか
けない利点を有し、しかも定計数法のようにピークのな
い所で時間をかけていると云う時間の無駄がなくて、従
来の何れの方法に比しても測定時間を短縮することがで
きる。
(F) Effect The present invention has the above-mentioned configuration, and each measurement is performed using a constant time method, but it is similar to the constant counting method in that the measurement ends when the count at the peak reaches a predetermined level. This method automatically determines the measurement time according to the sample, which has the advantage of not wasting time.Moreover, unlike the constant counting method, there is no need to waste time in areas where there are no peaks. Therefore, the measurement time can be shortened compared to any conventional method.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の詳細な説明するグラフ、第2図は本発
明の一実施例装置の構成を示すブロック図、第3図は同
実施例の動作の70−チヤーI・である。 X・・・X線源、G・・・コニオメータ、S・・・試料
、D・・・X線検出器。 代理人 弁理士 係 浩 介
FIG. 1 is a graph explaining the present invention in detail, FIG. 2 is a block diagram showing the configuration of an apparatus according to an embodiment of the present invention, and FIG. 3 is a 70-channel I diagram showing the operation of the embodiment. X...X-ray source, G...coniometer, S...sample, D...X-ray detector. Agent Patent Attorney Kosuke

Claims (2)

【特許請求の範囲】[Claims] (1) ゴニオメータ上の複数の角位置を走査し、定時
間法によってX線強度を測定する測定走査を繰返し、各
測定動作毎に得られたX線強度のデータを同−角位置毎
に積算し、回折X線のピークのあるべき角位置における
X線強度データの積算値よりが所定レベルVpを超すか
、回折X線ピークのない他の角位置のX線強度データの
積算値工aが所定レベルV/を超えた所で測定動作を終
了させる制御手段を備えだX線回折装置。
(1) Scanning multiple angular positions on the goniometer and repeating measurement scans to measure X-ray intensity using a constant time method, and integrating the X-ray intensity data obtained for each measurement operation for each same angular position. However, if the integrated value of the X-ray intensity data at the angular position where the diffraction An X-ray diffraction apparatus equipped with a control means for terminating the measurement operation when a predetermined level V/ is exceeded.
(2)所定レベルVpを工a + 3J Ibによって
与えるようにした特許請求の範囲第1項記載の7折装置
(2) The seven-folding device according to claim 1, wherein the predetermined level Vp is given by a + 3J Ib.
JP11990383A 1983-06-30 1983-06-30 X-ray diffraction apparatus Pending JPS6011148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11990383A JPS6011148A (en) 1983-06-30 1983-06-30 X-ray diffraction apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11990383A JPS6011148A (en) 1983-06-30 1983-06-30 X-ray diffraction apparatus

Publications (1)

Publication Number Publication Date
JPS6011148A true JPS6011148A (en) 1985-01-21

Family

ID=14773064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11990383A Pending JPS6011148A (en) 1983-06-30 1983-06-30 X-ray diffraction apparatus

Country Status (1)

Country Link
JP (1) JPS6011148A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288056A (en) * 1988-09-26 1990-03-28 Oji Paper Co Ltd Surface material for sanitary good and manufacture thereof
JPH02133643A (en) * 1988-11-11 1990-05-22 James River Corp:The Non-woven composite material
JPH06285112A (en) * 1993-03-30 1994-10-11 Showa Highpolymer Co Ltd Biologically decomposable disposable diaper
US5618610A (en) * 1994-08-29 1997-04-08 Uni-Charm Corporation Nonwoven fabric wiper and method for making it
US5733635A (en) * 1995-11-21 1998-03-31 Chisso Corporation Laminated non-woven fabric and process for producing the same
JP2014211328A (en) * 2013-04-17 2014-11-13 株式会社リガク X-ray diffraction device, method for measuring x-ray diffraction, and control program

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0288056A (en) * 1988-09-26 1990-03-28 Oji Paper Co Ltd Surface material for sanitary good and manufacture thereof
JP2613580B2 (en) * 1988-09-26 1997-05-28 王子製紙株式会社 Surface material for sanitary articles and method for producing the same
JPH02133643A (en) * 1988-11-11 1990-05-22 James River Corp:The Non-woven composite material
JPH06285112A (en) * 1993-03-30 1994-10-11 Showa Highpolymer Co Ltd Biologically decomposable disposable diaper
US5618610A (en) * 1994-08-29 1997-04-08 Uni-Charm Corporation Nonwoven fabric wiper and method for making it
US5733635A (en) * 1995-11-21 1998-03-31 Chisso Corporation Laminated non-woven fabric and process for producing the same
JP2014211328A (en) * 2013-04-17 2014-11-13 株式会社リガク X-ray diffraction device, method for measuring x-ray diffraction, and control program

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