W ¥ ÍV R Ë× D ß Ã Å mW È ¥P 8 ý U ê s Ò Å º ; c Â \ ¥ ¼Ê Ýù o Ú ì Å× DÑ ÷

(1)

Æ

W ¥ ÍV R Ë× D ß Ã Å mW È ¥P 8 ý U ê s Ò Å º ; c Â \ ¥ ¼Ê Ýù o Ú ì Å× DÑ ÷

° Ë

Ñ ¼Q 5 2 Ò Å 8 ý ° Ë Ñ »s ôV ê s

ç ¡ * > · ~ ç ¡¹ ÿ G B · © ¼U ] 8 ; · »' Ö <4 w H · ý ¡ ÷ 7 B ^∗

/ B

N Å Ò@ / < Æ § Ó ü t o < Æõ , / B N Å Ò 314-701 (2008¸ 7 Z 4 10{ 9 ~ Ã Î6 £ §)

~

½ Ó Ø ¦ è Ð 6 x ÷ & H É r Ö ¸$ í o í ß % i Ä »o (RPL Ä »o )\ ¦ ] j % i ¦, X-ray ¸Ø ¦ r ç ß \

É r PL : £ ¤$ í , F g ³ ðÑ þ & ³ © , Ã ÌÒ o× æd + þ A$ í \ É r È Òõ Ö ¦ _ o\ ¦ ' a ¹ 1 Ï % i . RPL Ä »o _ PL : £ ¤

$ í

É r X-ray ¸Ø ¦ r ç ß s 7 £ x ½ + ÉÃ º2 ¤ PL y © ¸ H 7 £ x % i . PL Û ¼& 7 à Ô! 3 _ ì r$ 3 õ Y Us $ ¸ r ç

ß \ É r PL y © ¸_ y è H F g ³ ðÑ þ & ³ © ` ¦ ' a ¹ 1 Ï½ + É Ã º e % 3 ¦, s F g ³ ðÑ þ & ³ © É r X-ray

¸Ø ¦ r ç ß s U ´Ã º2 ¤ 8 y © > µ 1 ÏÒ q t % i . È Òõ Ö ¦ _ o H X-ray ¸Ø ¦ r ç ß s U ´# Q| 9 Ã º2 ¤ RPL Ä » o

? /\ Ò q t$ í ÷ & H Ã ÌÒ o× æd (Color Center)_ ª s 7 £ x # r F g % ò % i \ @ /ô Ç f ¨ Ã º 7 £ x H

כ

` ¦ · ú Ã º e % 3 .

PACS numbers: 79.55.F, 82.50.M Keywords: RPL, í ß % i Ä »o , À Òp W 1 Û ¼

I. " e Â ] Ø

í ß % i Ä »o | ¾ Ó> [1] H ¸Ï ? @1 l x î ß · ú 9& 6 £ § \ ¸ Ô ¦ ½ ¨

¦ 1953¸ % 6 £ § Ü ¼ Ð ~ ½ Ó x ; ¤ ¦6 x | ¾ Ó> Ð 6

x ÷ &# Q& . Õ ª s Ä » H í ß % i Ä »o H ± ú É r f ¨ Ã º | ¾ Ó ï r 0

A\ " f & h ½ + Ë t 3 l w ¦ Z } É r f ¨ Ã º | ¾ Ó ï r 0 A\ " f 6 x

÷

&# Q& l M :ë H s . Õ ª Q 1960¸ @ /\ s Ø Ô Q ± ú É r f ¨ Ã

º | ¾ Ó\ ¸ ì ø Í6 £ x H Ä »o F | 9 s > hµ 1 Ï÷ &# Q" f > h ¸m '

a A6 x | ¾ Ó> Ð" f 6 x s 0 p x > ÷ &% 3 . Ä »o | ¾ Ó

>

H ¾ º& h | ¾ Ó_ l 2 ¤ s 0 p x ¦, É r | ¾ Ó> Ð @ '

& ³ © (fading)s & h É r © & h s e 6 £ § \ ¸ Ô ¦ ½ ¨ ¦ | ¾ Ó 8

£ ¤& ñ \ 9 כ ¹ô Ç > 8 £ ¤ © q x 9 8 £ ¤& ñ l Õ ü t s V , o Ð/ å L

÷

&t 3 l w # { 9 Â Ò ² D G \ " fë ß 6 x s s À Ò# Qt ¦ e .

1980¸ @ /\ s Ø Ô Q | 9 èÛ ¼ Ð 1 l x H ` O Û ¼ UV Y Us

$

\ ¦ s 6 x ô Ç r ç ß ì r K PL_ l Z O Ü ¼ Ð ~ ½ Ó f ¨ Ã º | ¾ Ó

>

_ µ 1 Ï s s À Ò# Qt ¦ e ¦, Ä »o _ ¦Ä »ô Ç $ í Ä

» Ðî r + þ AI ] j s 0 p x l M :ë H \ r Ä »o F | 9 _

| ¾ Ó> > hµ 1 Ï\ ' a d ` ¦ ° ú > ÷ &# Q 2001¸ s A É r Ö ¸$ í o

í ß % i Ä »o H > h ¸m ' a A6 x Ü ¼ Ð 6 x ÷ &# Q4 R ¸ ¦ e

[2].

~

½ Ó Ü ¼ ÐÂ Ò' _ ^ x K \ ¦ × ¦ s l 0 AK y 7 á x ~ ½ Ó

| ¾ Ó> (Dosimeter)\ ¦ & h 6 x # ~ ½ Ó | ¾ Ó ¨ î \ ¦

¦ e . GM > Ã º ' a õ $ 3 F g > Ã ºl 1 p x _ Å Ò ~ ½ Ó

∗

E-mail: [email protected]

|

¾ Ó8 £ ¤& ñ l Å Ò Ð 6 x ÷ & ¦ e ¦, > h ~ ½ Ó | ¾ Ó ¸m '

a A6 x Ü ¼ Ð íÖ ¿ ¸r B j' (Pocket Dosimeter), 9 2 £ § C t

(Film Badge), \ P µ 1 Ï F g | ¾ Ó> (Thermoluminescence Dosimeter: TLD), F g Ä » ¸ µ 1 Ï F g | ¾ Ó> (Optical Stimu- lated Luminescence Dosimeter: OSLD), ~ ½ Ó F g À Òp W

1 Û ¼ | ¾ Ó> (Radiophotoluminescence Glass Dosime- ter: RPLGD) e [3–10].

>

h ~ ½ Ó | ¾ Ó> _ 7 á x À Ó\ © é ß & h s e t ë ß , RPL Ä

»o | ¾ Ó> H | ¾ Óó ø Í1 l q Ê ê ¾ º& h | ¾ Ós t 0 >t t · ú § F 8

£ ¤& ñ s ] j H t 0 p x ¦, Å Ò : r ¸\ î ß & ñ & h s 9 fad- ing & ³ © s & h # Q þ j H ´ ú § É r ½ ¨ ' ÷ & ¦ e .

: r ½ ¨\ " f H ~ ½ Ó Ø ¦ è Ð 6 x ÷ & H É r Ö ¸$ í

o í ß % i Ä »o (RPL Ä »o )\ ¦ ] j % i ¦, X-ray ¸Ø ¦ r ç

ß \ É r PL : £ ¤$ í , F g ³ ðÑ þ & ³ © , Ã ÌÒ o× æd + þ A$ í \ É r È

Òõ Ö ¦ _ o\ ¦ ' a ¹ 1 Ï % i ¦, Õ ª õ \ @ /K 7 H _ % i

.

II. ÷ m Ç] M öU ê s0 n É

1. RPL ¥P 8 ý < gX c l l

: r& h Ü ¼ Ð RPL Ä »o | ¾ Ó> _ ½ ¨$ í $ í ì r É r Å Ò Ð í ß

%

i Ü ¼ Ð s À Ò# Q4 Re ¦, p | ¾ Ó_ É r` ¦ < ÊÄ »ô Ç . : r ½ ¨\

6 x ) a í ß % i Ä »o _ ½ + Ë$ í \ 6 x ) a o½ + ËÓ ü t õ Õ ª | 9 | ¾ Ó

`

¦ Table 1 \ ? /% 3 .

-282-

(2)

Table 1. RPL Glass composition of solid state.

No. Contents Mass (g)

1 Phosphorus pentoxide 163

2 Silver oxide 7

3 Aluminum oxide 20

4 Boron trioxide 6

5 Sodium nitrate 4

Fig. 1. Detail for PG-3 (A, B) specimen.

Fig. 2. Photoluminescence spectrum system for PG-2, 3 (A, B) specimen.

Table 1 õ ° ú s í ß % i Ä »o \ ¦ ½ + Ë$ í l 0 AK Ä º P

2

O

5

\ ¦ í H Ã º 7 £ x À ÓÃ º\ 6 x K r & ï r q % i . Ó ü t : r, 6 x K

) a í ß s r × æ \ ó ø ÍB ÷ & ¦ e Ü ¼ & ñ S X ô Ç ª ` ¦ · ú l 0

AK Ä º 8 + þ AI Ð ï r q # f ] X í H Ã º 7 £ x À ÓÃ º\ 6 x K

% i . P

2

O

₅

_ 6 xÓ o` ¦ 500 mL · ú À Òp ¸m \ V ,

¦ z ´o l Ð\ " f 450

^◦

C Ð 2r ç ß 1 l x î ß \ P # 0 l x

»

¡

¤ r Ê ê ¸m \ y y ï r q ) a Ag

₂

O, Al

₂

O

₃

, B

₂

O

₃

, NaNO

3

\ ¦ Table 1 õ ° ú s $ Ö ¦ Ð 8 £ ¤& ñ " f Ä »o }

@ / Ð ç H{ 9 > D ¥ ½ + Ë % i . z ´o l Ð\ ¸m

\

¦ V , ¦ © : r Ü ¼ ÐÂ Ò' 1400

^◦

C t 10

^◦

C/min. 5 Å q ¸ Ð 2 r ç ß 1 l x î ß : r ¸\ ¦ ` ¦ 9 6 xÖ 6 x © I Ð 2 r ç ß 1 l x î ß Ä »t r (

. 6 xÖ 6 x ) a © I _ Ä »o \ ¦ < É Ê ó ø Í 0 A\ · ¡ s ¦ · ú § 4 ` ¦ Å Ò# Q ó

ø Í © Ü ¼ Ð $ í + þ A % i ¦ / å LÏ Ü ¼ Ð # 6 £ x§ 4 ì r í_ Ô ¦ç H { 9

Ð ç H\ P s µ 1 ÏÒ q t½ + É Ã º e l M :ë H \ 300

^◦

C Ð 15r ç ß 1 l x î

ß \ P % o (annealing) % i . r « Ñ_ ] X é ß / B N Ü ¼ Ð

Table 2. Size of specimen.

Specimen name Size

(wcm × lcm × hcm) Amounts

PG-2 1 × 1.5 × 0.2 1

PG-3 (A, B) 1 × 1.5 × 0.5 2

ô

Ç < H © ` ¦ þ j è o l 0 AK s 7 H × ¼ d v ± ú (Diamond Saw)` ¦ s 6 x # Table 2ü < ° ú s / B N % i .

r

« Ñ\ ¦ Table 2 ü < ° ú s ] j % i ¦ ³ ð \ Ô ¦í HÓ ü t

`

¦ ] j l 0 AK í Ð 2 ; (Rough grinding) Ê ê

\

6 µm, 1 µm s 7 H × ¼ & ³ Ã ÌÓ o\ í H & h Ü ¼ Ð p [ j

(Polishing) # ³ ð ` ¦ â Ü ¼ Ð / B N % i . Ä »l Ó ü t

| 9

_ ¸% i ` ¦ ¦ 9 # õ í ß oÃ º è\ 1r ç ß { H Ê ê \ 9

· ú

ï` ¦ Ð [ j' % i .

2. U ê s Ò Å8 ý º

PG-2 ü < PG-3 (A, B) H " l oÛ ¼ r] X ì r$ 3 l (Rigaku, DMAX-2000) _ Cu ³ ð& h \ " f µ 1 ÏÒ q t÷ & H X-ray Ð ¸ \ ¦ r

( . PG-2 H ^ & h \ ç H{ 9 > 40 kV-100 mA Ð 4, 8, 12, 16, 36ì r 1 l x î ß ¸ % i . PG-3A H 40 kV-100 mA Ð c \ -t \ ¦ ¸& ñ # ; ¤ 3 mm { Ð 2ì r, 4ì r` ¦

¸ % i ¦, PG-3B H 8ì r, 16ì r 1 l x î ß Fig. 1õ ° ú s ¸

% i .

3. ° Ë Ñ ¼Q 5 2 Ò Å õ m Í ¼Ê Ýù o Ú8 ý ¤X N Ë

Fig. 2 \ " f H PG-3 (A, B) _ X-ray ¸Ø ¦ Â Ò0 A\ 405nm

© _ DPSS (Diode-pumped solid-state)Y Us $ (Crys- talLaser, BCL-020-405)\ ¦ s 6 x # f â 1 mmü < 50 mm _ c (Beam)Ü ¼ Ð ¸ # r « Ñ_ F g À Òp W 1 Û ¼ (Photoluminescence; PL) ü < ~ ½ Ó | ¾ Ó_ q Y V ' a > [11, 12]\ ¦ ' a ¹ 1 Ï % i .

Fig. 2 _ r Û ¼% 7 ` ¦ s 6 x # PG-3 r « Ñ_ F g ³ ðÑ þ (photo-bleaching) & ³ © ` ¦ ' a ¹ 1 Ï l 0 AK Y Us $ c _ f

â

õ y © ¸ H y y 1 mm, 5 W/cm

²

Ð 8 £ ¤& ñ % i ¦ PL Û ¼

&

7 à Ô! 3 \ @ /K r ç ß \ É r Ô æ õ ¸_ þ v` ¦ ' a ¹ 1 Ï % i .

UV/Vis spectrophotometer (Scinco, S-3100)\ ¦ s 6 x

#

200 nmÂ Ò' 400 nm t PG-2 r « Ñ_ È Òõ Ö ¦` ¦ 8 £ ¤& ñ

% i . PG-2 r « Ñ\ ¦ " l oÛ ¼ r] X ì r$ 3 l 40 kV-100 mA

¸| \ " f ~ ½ ÓØ ¦ ÷ & H X-ray\ ¦ s 6 x # ç H{ 9 > 4, 8, 12,

16, 36ì r í H & h Ü ¼ Ð ¸ " f È Òõ Ö ¦` ¦ 8 £ ¤& ñ % i .

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Fig. 3. Photoluminescence spectrums in 2sec. after laser excitation for different X-ray exposure time.

III. ÷ m Ç] M ö+ s ÇÊ Ý

1. ° Ë Ñ »s (photo-bleaching) ôV ê s

Fig. 3 õ 4 H PG-3 r « Ñ_ X-ray ¸Ø ¦ r ç ß \ É r PL Û

¼& 7 à Ô! 3 _ os . Fig. 3 É r Y Us $ ¸ Ê ê 2 í Ê ê\

% 3

É r PL Û ¼& 7 à Ô! 3 s ¦, Fig 4 H Y Us $ ¸ Ê ê 30 í Ê ê

\

% 3 É r Û ¼& 7 à Ô! 3 s . X-ray\ ¦ 2, 4, 8, 16ì r ¸ ô Ç r

«

Ñ\ PL\ ¦ 8 £ ¤& ñ ô Ç õ ~ ½ Ó ¸ | ¾ Ó\ q Y V # PL y

© ¸ H 7 £ x % i ¦, PL_ þ j@ / x ß ¼ (peak) H 610 nm \

"

f z ¤ .

Fig. 4 _ õ H Fig. 3 \ " f % 3 # Q õ Ð PL y ©

¸ ± ú כ ` ¦ S X ½ + É Ã º e % 3 ¦, r « Ñ_ PL y © ¸

y

è H & ³ © 7 £ ¤, photo-bleaching s µ 1 ÏÒ q t % i . s Q ô

Ç & ³ © É r UV Y Us $ r « Ñ ? /_ Ã ÌÒ o× æd ` ¦ õ # r

ç ß \ PL y © ¸ y è H כ Ü ¼ Ð [ O " î ) a [4].

Fig. 5 H Fig. 3 õ Fig. 4\ " f % 3 É r õ \ ¦ y y X-ray

¸Ø ¦ r ç ß \ É r PL y © ¸ & h ì r ° ú כ` ¦ & ñ | ¾ Ó& h Ü ¼ Ð ? /

%

3 . Y Us $ ¸ Ê ê 2 í Ê ê\ 8 £ ¤& ñ ô Ç õ Ð 30 í Ê

ê\ 8 £ ¤& ñ ô Ç õ \ " f l Ö ¦ l y è H כ É r F g ³ ðÑ þ

&

³ © Ü ¼ Ð ô Ç © @ /& h PL y © ¸_ y è M :ë H s 9 X- ray ¸Ø ¦ r ç ß s U ´Ã º2 ¤ PL y © ¸_ s & t H כ Ü ¼

Ð ^ ¦ M :, X-ray ¸Ø ¦ r ç ß s U ´Ã º2 ¤ Photo-Bleaching & ³

© s y © > z ` ¦ · ú Ã º e . Fig. 6 É r PG-3 r « Ñ _

X-ray 16ì r ¸Ø ¦ ) a Â Òì r \ r ç ß â õ \ ¸

H PL © 520 nm, 560 nm, 600 nm_ y © ¸\ ¦ · p

כ

s . 8 £ ¤& ñ × æ ç ß \ Y Us $ on, off\ ¦ Ã º Y V ì ø Í4 ¤ # PL y © ¸_ r4 ¤& ñ ¸\ ¦ ' a ¹ 1 Ï % i Ü ¼ , PL y © ¸ H r4 ¤

÷

&t 3 l w % i . Y Us $ ¸ 2, 30 í\ y y PL Û ¼& 7 à Ô

Fig. 4. Photoluminescence spectrums in 30sec. after laser excitation for different X-ray exposure time.

Fig. 5. Photoluminescence integration area in accor- dance with exposure time after each 2sec. and 30sec.

on laser excitation.

! 3

` ¦ 8 £ ¤& ñ ¦ 9r ç ß â õ Ê ê Y Us $ \ ¦ 2, 30 í ¸

#

2. ¼Ê Ýù o Ú ¤X N Ë

Fig. 7 É r 400 kV-100 mA ¸| Ü ¼ Ð " l oÛ ¼ r] X ì r$ 3 l

ÐÂ Ò' ~ ½ ÓØ ¦ ÷ & H X-ray\ ¦ PG-2 r « Ñ\ 4, 8, 12, 16, 36ì r 1

l

x î ß ¸ ô Ç Ê ê 8 £ ¤& ñ ô Ç È Òõ Ö ¦ Û ¼& 7 à Ô! 3 s . X-ray ¸ Ø

"

f RPL Ä »o _ È Òõ Ö ¦ É r y è % i ¦, 300 nm s \ " f

H X-ray ¸Ø ¦ r ç ß \ É r È Òõ Ö ¦ _ o H S X ½ + É Ã º

\ O

% 3 . s Qô Ç È Òõ Ö ¦ _ y è H Ò q t$ í ÷ & H X-ray ¸Ø ¦

(4)

Fig. 6. Photo-Bleaching at PL wavelength 560 nm, 600 nm, 520 nm with laser on and off.

Fig. 7. Transmittance of PG-2 specimen according to X-ray exposure time.

r

ç ß s U ´# Q| 9 Ã º2 ¤ RPL Ä »o ? /\ Ò q t$ í ÷ & H Ã ÌÒ o× æd (Color Center) _ ª s 7 £ x # r F g % ò % i \ @ /ô Ç f

¨ Ã º 7 £ x ô Ç õ Ð Ò q ty ) a . Fig. 8\ " f % 3 É r È Òõ Ö

Ö ¦ É r 66.2 % \ " f 26.3 % t y è % i ¦, 400 nm

IV. + s Ç Â ] Ø

: r ½ ¨\ " f H ~ ½ Ó Ø ¦ è Ð 6 x ÷ & H É r Ö ¸$ í

o í ß % i Ä »o (RPL Ä »o )\ ¦ ] j % i ¦, X-ray ¸Ø ¦ r

Fig. 8. Transmittance of PG-2 specimen according to X-ray exposure time each wavelength 350 nm and 400 nm.

ç

Òõ Ö ¦ _ o\ ¦ ' a ¹ 1 Ï % i ¦, Õ ª õ \ @ /K 7 H _ % i

.

RPL Ä »o _ PL : £ ¤$ í É r X-ray ¸Ø ¦ r ç ß s 7 £ x ½ + ÉÃ º 2

%

´# Q| 9 Ã º2 ¤ RPL Ä »o ? /\ Ò q t$ í ÷ & H Ã ÌÒ o× æd (Color Center) _ ª s 7 £ x # r F g % ò % i \ @ /ô Ç f ¨ Ã º

7 £

x H כ ` ¦ · ú Ã º e % 3 .

s

Qô Ç õ [ þ t Ð ^ ¦ M :, X-ray_ ¸Ø ¦ | ¾ Ó (~ ½ Ó ¸

| ¾ Ó)õ PL_ ª s q Y V ' a > \ ¦ ° ú ¦ e Ü ¼Ù ¼ Ð ¾ º& h ~ ½ Ó

| ¾ Ó_ 8 £ ¤& ñ õ È Òõ Ö ¦ o\ ¦ ' a ¹ 1 Ï # È Òõ Ö ¦ y è

\

É r ~ ½ Ó | ¾ Ó_ 8 £ ¤& ñ s 0 p x ½ + É כ Ü ¼ Ð Ò q ty ) a .

Y

c p w Ã U Ø ô

[1] Norimichi Juto, Paper for Proceeding of AOCRP-1- Korea (Seoul, 2002).

[2] Masayuki Tsuda, Report No. 203, 2002.

[3] E. B. Podqorsak, Radiation Oncology Physics: A Handbook for Teachers and Students (International Atomic Energy Agency, Vienna, 2006).

[4] J. A. Perry, Radiophotoluminescence Dosimetry

(IOP Publishing Ltd, British, 1987), p. 1-66.

(5)

[5] D. Milkovic, M. Rangogajec-Komor, S. Miljanic, Z.

Knezevic and K. Krpan, Second European IRPA Congress on Radiation Protection (Paris-France, 2006).

[6] Peter J. Gollon, Report No. N.A.L. TM-608, 1975.

[7] H. Ing, Nucl. Tracks Radiat. Meas. 12, 49 (1986).

[8] J. M. Bordy, J. Barthe, B. Boutruche and P. Segur, Radiat. Prot. Dosim. 54, 369 (1994).

[9] J. Barthe, Radiat. Prot. Dosim. 54, 365 (1994).

[10] Keiichi Nakagawa, Hiroki Koyanagi, Takashi Shi- raki, Shigeki Saegusa, Katsutake Sasaki, Takashi

Oritate, Kazuo Mima, Masanori Miyazawa, Tatsuyo Ishidoya, Kuni Ohtomo and Kiyoshi Yoda, Rev. Sci.

Instrum. 76, 106104 (2005).

[11] S. K. Youssef, L. A. Guirguis and N. A. Shanin, Radiat. Phys. Chem. 46, 321 (1994).

[12] Katsuyoshi Tabushi, Shuji Koyama, Mitsuhiko Homma, Yuichi Aoyama, Yoshihito Namito, Shuichi Ban and Hideo Hirayama, Instrumentation and Technique 14C, 275 (2003).

Transmittance Variation and Photo-Bleaching of Silver Activated Phosphate Glass for Radiation Exposure

Sang-Min Park, Man-Il Kang, Ji-wook Ryu, Moonwon Kim and Sayong Hong

^∗

Department of Physics, Kongju National University, Kongju 314-701

(Received 10 July 2008)

Silver-activated phosphate glass (RPL glass) used as a radiation detector was synthesized and its photoluminescence characteristics were investigated by using the X-ray exposure time and the photo-bleaching effect. Its transmittance was also investigated based on the generated color center.

The photoluminescence of RPL glass increased as the X-ray exposure time was increased. The PL spectrum was used also investigate the photo-bleaching effect, reduced PL intensity caused by the incident laser indicated that photo-bleaching was higher when the X-ray exposure time was longer.

We determind that the transmittance decreased with increasing absorption of visible rays by color centers that were generated greater numbers as the X-ray exposure time was increased.

PACS numbers: 79.55.F, 82.50.M

Keywords: RPL, Phosphate glass, Luminescence

∗

E-mail: [email protected]

W ¥  ÍV R Ë× D ß Ã Å  mW È ¥P 8 ý U ê s  Ò Å  º ; c Â \ ¥  ¼Ê Ýù o Ú ì Å× DÑ ÷

Æ

W ¥   ÍV R Ë× D ß Ã Å  mW È ¥P 8 ý U ê s  Ò Å  º ; c  Â \ ¥  ¼Ê Ýù o Ú ì Å× DÑ ÷

° Ë

Ñ ¼Q 5 2 Ò Å­ 8 ý ° Ë Ñ »s    ôV ê s





 ç ¡ * > · ~ ç ¡¹ ÿ  G  B · © ¼U ] 8 ; ·  »' Ö <4 w H · ý  ¡  ÷ 7 B ∗

/ B

N Å Ò@ / < Æ § Ó ü t o  < Æõ , / B N Å Ò 314-701 (2008¸  7 Z 4 10{ 9  ~ Ã Î6 £ §)

~

½ Ó     Ø  ¦  è  Ð  6 x ÷ &  H  É r  Ö ¸$ í o   í ß % i Ä »o  (RPL Ä »o )\  ¦ ] j   % i  ¦, X-ray  ¸Ø  ¦ r ç ß \ 



 É r PL : £ ¤$ í , F g ³ ðÑ þ  & ³ © ,  Ã ÌÒ  o×  æd   + þ A$ í \    É r È Òõ Ö  ¦ _    o\  ¦  ' a ¹ 1 Ï % i  . RPL Ä »o _  PL : £ ¤

$ í

 É r X-ray  ¸Ø  ¦ r ç ß s  7 £ x ½ + ÉÃ º2  ¤ PL y ©  ¸  H 7 £ x  % i  . PL Û ¼& 7 à Ô! 3 _  ì  r$ 3   õ  Y Us $   ¸ r  ç

ß \    É r PL y ©  ¸_  y   è     H F g ³ ðÑ þ  & ³ © `  ¦  ' a ¹ 1 Ï½ + É Ã º e  % 3  ¦, s   F g ³ ðÑ þ   & ³ ©  É r X-ray



¸Ø  ¦ r ç ß s  U ´Ã º2  ¤  8 y ©  >  µ 1 ÏÒ q t % i  . È Òõ Ö  ¦ _    o  H X-ray  ¸Ø  ¦ r ç ß s  U ´# Q| 9 Ã º2  ¤ RPL Ä » o

 ? /\  Ò q t$ í ÷ &  H  Ã ÌÒ  o×  æd   (Color Center)_   ª s  7 £ x  #  r  F g  % ò % i \  @ /ô  Ç f  ¨ Ã º 7 £ x    H

 כ

`  ¦ · ú  Ã º e  % 3  .

PACS numbers: 79.55.F, 82.50.M Keywords: RPL,   í ß % i Ä »o , À Òp W 1  Û ¼

I. " e Â ] Ø



 í ß % i  Ä »o   | ¾ Ó>  [1]  H  ¸Ï ? @1 l x î ß  · ú  9&  6 £ § \  ¸ Ô  ¦ ½ ¨

 ¦ 1953¸  % 6 £ § Ü ¼ Ð ~ ½ Ó   x ;  ¤   ¦6 x   | ¾ Ó>  Ð   6

x ÷ &# Q&   . Õ ª s Ä »  H   í ß % i  Ä »o   H ± ú  É r f  ¨ Ã º  | ¾ Ó ï  r 0

A\ " f & h ½ + Ë t  3 l w  ¦ Z  } É r f  ¨ Ã º  | ¾ Ó ï  r 0 A\ " f  6 x

÷

&# Q&  l  M :ë  H s  . Õ ª Q  1960¸  @ /\  s Ø Ô Q ± ú  É r f  ¨ Ã

º  | ¾ Ó\  ¸ ì ø Í6 £ x   H Ä »o F | 9 s  > hµ 1 Ï÷ &# Q" f > h   ¸m  '

a A6 x   | ¾ Ó>  Ð" f  6 x s  0 p x >  ÷ &% 3  . Ä »o   | ¾ Ó

>

  H ¾ º& h   | ¾ Ó_  l 2  ¤ s  0 p x  ¦,  É r   | ¾ Ó>   Ð  @ '

  & ³ ©  (fading)s  & h  É r  © & h s  e  6 £ § \  ¸ Ô  ¦ ½ ¨  ¦   | ¾ Ó 8

£ ¤& ñ \   9 כ ¹ô  Ç     > 8 £ ¤  © q  x 9 8 £ ¤& ñ l Õ ü t s  V , o   Ð/ å L

÷

&t  3 l w #  { 9 Â Ò ² D G \ " fë ß   6 x s  s À Ò# Qt  ¦ e   .

1980¸  @ /\  s Ø Ô Q | 9  èÛ ¼ Ð 1 l x      H ` O Û ¼ UV Y Us 

$

\  ¦ s 6 x ô  Ç r ç ß ì  r K  PL_  l Z O Ü ¼ Ð ~ ½ Ó   f  ¨ Ã º  | ¾ Ó

>

_  µ 1 Ï  s  s À Ò# Qt  ¦ e   ¦, Ä »o _   ¦Ä »ô  Ç $ í       Ä

» Ðî  r + þ AI  ] j  s  0 p x l  M :ë  H \  r  Ä »o F | 9 _ 



 | ¾ Ó>  > hµ 1 Ï\   ' a d  `  ¦ ° ú >  ÷ &# Q 2001¸  s A   É r  Ö ¸$ í o



 í ß % i Ä »o   H > h   ¸m ' a A6 x Ü ¼ Ð  6 x ÷ &# Q4 R  ¸ ¦ e  

 [2].

~

½ Ó   Ü ¼ ÐÂ Ò' _    ^ x K \  ¦ ×  ¦ s l  0 AK  y  7 á x ~ ½ Ó



  | ¾ Ó>  (Dosimeter)\  ¦ & h 6 x #  ~ ½ Ó   | ¾ Ó ¨ î \  ¦ 



¦ e   . GM > Ã º  ' a õ  $ 3 F g > Ã ºl  1 p x _  Å Ò  ~ ½ Ó  

E-mail: [email protected]

|

¾ Ó8 £ ¤& ñ l  Å Ò Ð  6 x ÷ & ¦ e   ¦, > h  ~ ½ Ó   | ¾ Ó  ¸m  '

a A6 x Ü ¼ Ð  íÖ ¿  ¸r B j'  (Pocket Dosimeter),  9 2 £ § C  t

 (Film Badge), \ P µ 1 Ï F g   | ¾ Ó>  (Thermoluminescence Dosimeter: TLD), F g Ä » ¸ µ 1 Ï F g   | ¾ Ó>  (Optical Stimu- lated Luminescence Dosimeter: OSLD), ~ ½ Ó   F g À Òp  W

1  Û ¼   | ¾ Ó>  (Radiophotoluminescence Glass Dosime- ter: RPLGD)  e    [3–10].

>

h  ~ ½ Ó   | ¾ Ó> _  7 á x À Ó\      © é ß & h s  e  t ë ß , RPL Ä

»o   | ¾ Ó>   H   | ¾ Óó ø Í1 l q Ê ê ¾ º& h   | ¾ Ós  t 0 >t t  · ú §  F  8

£ ¤& ñ s    ] j  H t  0 p x  ¦, Å Ò   : r  ¸\  î ß & ñ & h s  9 fad- ing  & ³ © s  & h # Q þ j   H ´ ú § É r   ½ ¨   '  ÷ & ¦ e   .



: r   ½ ¨\ " f  H ~ ½ Ó     Ø  ¦  è  Ð  6 x ÷ &  H  É r  Ö ¸$ í

o   í ß % i Ä »o  (RPL Ä »o )\  ¦ ] j   % i  ¦, X-ray  ¸Ø  ¦ r  ç

ß \    É r PL : £ ¤$ í , F g ³ ðÑ þ  & ³ © ,  Ã ÌÒ  o×  æd   + þ A$ í \    É r È

Òõ Ö  ¦ _    o\  ¦  ' a ¹ 1 Ï % i  ¦, Õ ª   õ \  @ /K   7 H _  % i 

.

II. ÷ m Ç] M öU ê s0 n É

1. RPL  ¥P 8 ý < gX c l l

 : r& h Ü ¼ Ð RPL Ä »o   | ¾ Ó> _  ½ ¨$ í $ í ì  r É r Å Ò Ð   í ß 

%

i Ü ¼ Ð s À Ò# Q4 Re   ¦, p | ¾ Ó_   É r`  ¦  < ÊÄ »ô  Ç .  : r   ½ ¨\ 



6 x ) a   í ß % i Ä »o _  ½ + Ë$ í \   6 x ) a o½ + ËÓ ü t õ  Õ ª | 9 | ¾ Ó

`

W ¥ ÍV R Ë× D ß Ã Å mW È ¥P 8 ý U ê s Ò Å º ; c Â \ ¥ ¼Ê Ýù o Ú ì Å× DÑ ÷

W ¥ ÍV R Ë× D ß Ã Å mW È ¥P 8 ý U ê s Ò Å º ; c Â \ ¥ ¼Ê Ýù o Ú ì Å× DÑ ÷

Ñ ¼Q 5 2 Ò Å 8 ý ° Ë Ñ »s ôV ê s

ç ¡ * > · ~ ç ¡¹ ÿ G B · © ¼U ] 8 ; · »' Ö <4 w H · ý ¡ ÷ 7 B ^∗

N Å Ò@ / < Æ § Ó ü t o < Æõ , / B N Å Ò 314-701 (2008¸ 7 Z 4 10{ 9 ~ Ã Î6 £ §)

½ Ó Ø ¦ è Ð 6 x ÷ & H É r Ö ¸$ í o í ß % i Ä »o (RPL Ä »o )\ ¦ ] j % i ¦, X-ray ¸Ø ¦ r ç ß \

É r PL : £ ¤$ í , F g ³ ðÑ þ & ³ © , Ã ÌÒ o× æd + þ A$ í \ É r È Òõ Ö ¦ _ o\ ¦ ' a ¹ 1 Ï % i . RPL Ä »o _ PL : £ ¤

É r X-ray ¸Ø ¦ r ç ß s 7 £ x ½ + ÉÃ º2 ¤ PL y © ¸ H 7 £ x % i . PL Û ¼& 7 à Ô! 3 _ ì r$ 3 õ Y Us $ ¸ r ç

ß \ É r PL y © ¸_ y è H F g ³ ðÑ þ & ³ © ` ¦ ' a ¹ 1 Ï½ + É Ã º e % 3 ¦, s F g ³ ðÑ þ & ³ © É r X-ray

¸Ø ¦ r ç ß s U ´Ã º2 ¤ 8 y © > µ 1 ÏÒ q t % i . È Òõ Ö ¦ _ o H X-ray ¸Ø ¦ r ç ß s U ´# Q| 9 Ã º2 ¤ RPL Ä » o

? /\ Ò q t$ í ÷ & H Ã ÌÒ o× æd (Color Center)_ ª s 7 £ x # r F g % ò % i \ @ /ô Ç f ¨ Ã º 7 £ x H

כ

` ¦ · ú Ã º e % 3 .

PACS numbers: 79.55.F, 82.50.M Keywords: RPL, í ß % i Ä »o , À Òp W 1 Û ¼

í ß % i Ä »o | ¾ Ó> [1] H ¸Ï ? @1 l x î ß · ú 9& 6 £ § \ ¸ Ô ¦ ½ ¨

¦ 1953¸ % 6 £ § Ü ¼ Ð ~ ½ Ó x ; ¤ ¦6 x | ¾ Ó> Ð 6

x ÷ &# Q& . Õ ª s Ä » H í ß % i Ä »o H ± ú É r f ¨ Ã º | ¾ Ó ï r 0

A\ " f & h ½ + Ë t 3 l w ¦ Z } É r f ¨ Ã º | ¾ Ó ï r 0 A\ " f 6 x

&# Q& l M :ë H s . Õ ª Q 1960¸ @ /\ s Ø Ô Q ± ú É r f ¨ Ã

º | ¾ Ó\ ¸ ì ø Í6 £ x H Ä »o F | 9 s > hµ 1 Ï÷ &# Q" f > h ¸m '

a A6 x | ¾ Ó> Ð" f 6 x s 0 p x > ÷ &% 3 . Ä »o | ¾ Ó

H ¾ º& h | ¾ Ó_ l 2 ¤ s 0 p x ¦, É r | ¾ Ó> Ð @ '

& ³ © (fading)s & h É r © & h s e 6 £ § \ ¸ Ô ¦ ½ ¨ ¦ | ¾ Ó 8

£ ¤& ñ \ 9 כ ¹ô Ç > 8 £ ¤ © q x 9 8 £ ¤& ñ l Õ ü t s V , o Ð/ å L

&t 3 l w # { 9 Â Ò ² D G \ " fë ß 6 x s s À Ò# Qt ¦ e .

1980¸ @ /\ s Ø Ô Q | 9 èÛ ¼ Ð 1 l x H ` O Û ¼ UV Y Us

\ ¦ s 6 x ô Ç r ç ß ì r K PL_ l Z O Ü ¼ Ð ~ ½ Ó f ¨ Ã º | ¾ Ó

_ µ 1 Ï s s À Ò# Qt ¦ e ¦, Ä »o _ ¦Ä »ô Ç $ í Ä

» Ðî r + þ AI ] j s 0 p x l M :ë H \ r Ä »o F | 9 _

| ¾ Ó> > hµ 1 Ï\ ' a d ` ¦ ° ú > ÷ &# Q 2001¸ s A É r Ö ¸$ í o

í ß % i Ä »o H > h ¸m ' a A6 x Ü ¼ Ð 6 x ÷ &# Q4 R ¸ ¦ e

[2].

½ Ó Ü ¼ ÐÂ Ò' _ ^ x K \ ¦ × ¦ s l 0 AK y 7 á x ~ ½ Ó

| ¾ Ó> (Dosimeter)\ ¦ & h 6 x # ~ ½ Ó | ¾ Ó ¨ î \ ¦

¦ e . GM > Ã º ' a õ $ 3 F g > Ã ºl 1 p x _ Å Ò ~ ½ Ó

¾ Ó8 £ ¤& ñ l Å Ò Ð 6 x ÷ & ¦ e ¦, > h ~ ½ Ó | ¾ Ó ¸m '

a A6 x Ü ¼ Ð íÖ ¿ ¸r B j' (Pocket Dosimeter), 9 2 £ § C t

(Film Badge), \ P µ 1 Ï F g | ¾ Ó> (Thermoluminescence Dosimeter: TLD), F g Ä » ¸ µ 1 Ï F g | ¾ Ó> (Optical Stimu- lated Luminescence Dosimeter: OSLD), ~ ½ Ó F g À Òp W

1 Û ¼ | ¾ Ó> (Radiophotoluminescence Glass Dosime- ter: RPLGD) e [3–10].

h ~ ½ Ó | ¾ Ó> _ 7 á x À Ó\ © é ß & h s e t ë ß , RPL Ä

»o | ¾ Ó> H | ¾ Óó ø Í1 l q Ê ê ¾ º& h | ¾ Ós t 0 >t t · ú § F 8

£ ¤& ñ s ] j H t 0 p x ¦, Å Ò : r ¸\ î ß & ñ & h s 9 fad- ing & ³ © s & h # Q þ j H ´ ú § É r ½ ¨ ' ÷ & ¦ e .

: r ½ ¨\ " f H ~ ½ Ó Ø ¦ è Ð 6 x ÷ & H É r Ö ¸$ í

o í ß % i Ä »o (RPL Ä »o )\ ¦ ] j % i ¦, X-ray ¸Ø ¦ r ç

ß \ É r PL : £ ¤$ í , F g ³ ðÑ þ & ³ © , Ã ÌÒ o× æd + þ A$ í \ É r È

Òõ Ö ¦ _ o\ ¦ ' a ¹ 1 Ï % i ¦, Õ ª õ \ @ /K 7 H _ % i

.

1. RPL ¥P 8 ý < gX c l l

: r& h Ü ¼ Ð RPL Ä »o | ¾ Ó> _ ½ ¨$ í $ í ì r É r Å Ò Ð í ß

i Ü ¼ Ð s À Ò# Q4 Re ¦, p | ¾ Ó_ É r` ¦ < ÊÄ »ô Ç . : r ½ ¨\

6 x ) a í ß % i Ä »o _ ½ + Ë$ í \ 6 x ) a o½ + ËÓ ü t õ Õ ª | 9 | ¾ Ó

¦ Table 1 \ ? /% 3 .

Table 1 õ ° ú s í ß % i Ä »o \ ¦ ½ + Ë$ í l 0 AK Ä º P

\ ¦ í H Ã º 7 £ x À ÓÃ º\ 6 x K r & ï r q % i . Ó ü t : r, 6 x K

) a í ß s r × æ \ ó ø ÍB ÷ & ¦ e Ü ¼ & ñ S X ô Ç ª ` ¦ · ú l 0

AK Ä º 8 + þ AI Ð ï r q # f ] X í H Ã º 7 £ x À ÓÃ º\ 6 x K

% i . P

_ 6 xÓ o` ¦ 500 mL · ú À Òp ¸m \ V ,

¦ z ´o l Ð\ " f 450

C Ð 2r ç ß 1 l x î ß \ P # 0 l x

¤ r Ê ê ¸m \ y y ï r q ) a Ag

\ ¦ Table 1 õ ° ú s $ Ö ¦ Ð 8 £ ¤& ñ " f Ä »o }

@ / Ð ç H{ 9 > D ¥ ½ + Ë % i . z ´o l Ð\ ¸m

¦ V , ¦ © : r Ü ¼ ÐÂ Ò' 1400

C t 10

C/min. 5 Å q ¸ Ð 2 r ç ß 1 l x î ß : r ¸\ ¦ ` ¦ 9 6 xÖ 6 x © I Ð 2 r ç ß 1 l x î ß Ä »t r (

. 6 xÖ 6 x ) a © I _ Ä »o \ ¦ < É Ê ó ø Í 0 A\ · ¡ s ¦ · ú § 4 ` ¦ Å Ò# Q ó

ø Í © Ü ¼ Ð $ í + þ A % i ¦ / å LÏ Ü ¼ Ð # 6 £ x§ 4 ì r í_ Ô ¦ç H { 9

Ð ç H\ P s µ 1 ÏÒ q t½ + É Ã º e l M :ë H \ 300

C Ð 15r ç ß 1 l x î

ß \ P % o (annealing) % i . r « Ñ_ ] X é ß / B N Ü ¼ Ð

Ç < H © ` ¦ þ j è o l 0 AK s 7 H × ¼ d v ± ú (Diamond Saw)` ¦ s 6 x # Table 2ü < ° ú s / B N % i .

« Ñ\ ¦ Table 2 ü < ° ú s ] j % i ¦ ³ ð \ Ô ¦í HÓ ü t

¦ ] j l 0 AK í Ð 2 ; (Rough grinding) Ê ê

6 µm, 1 µm s 7 H × ¼ & ³ Ã ÌÓ o\ í H & h Ü ¼ Ð p [ j

(Polishing) # ³ ð ` ¦ â Ü ¼ Ð / B N % i . Ä »l Ó ü t

_ ¸% i ` ¦ ¦ 9 # õ í ß oÃ º è\ 1r ç ß { H Ê ê \ 9

ï` ¦ Ð [ j' % i .

2. U ê s Ò Å8 ý º

PG-2 ü < PG-3 (A, B) H " l oÛ ¼ r] X ì r$ 3 l (Rigaku, DMAX-2000) _ Cu ³ ð& h \ " f µ 1 ÏÒ q t÷ & H X-ray Ð ¸ \ ¦ r